diff --git a/prebuilts/gradle/ActionBarCompat-Basic/Application/build.gradle b/prebuilts/gradle/ActionBarCompat-Basic/Application/build.gradle
index cfd6c96..5942f78 100644
--- a/prebuilts/gradle/ActionBarCompat-Basic/Application/build.gradle
+++ b/prebuilts/gradle/ActionBarCompat-Basic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ActionBarCompat-Basic/NOTICE b/prebuilts/gradle/ActionBarCompat-Basic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ActionBarCompat-Basic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/Application/build.gradle b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/Application/build.gradle
index cfd6c96..5942f78 100644
--- a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/Application/build.gradle
+++ b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/NOTICE b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ActionBarCompat-ShareActionProvider/Application/build.gradle b/prebuilts/gradle/ActionBarCompat-ShareActionProvider/Application/build.gradle
index cfd6c96..5942f78 100644
--- a/prebuilts/gradle/ActionBarCompat-ShareActionProvider/Application/build.gradle
+++ b/prebuilts/gradle/ActionBarCompat-ShareActionProvider/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ActionBarCompat-ShareActionProvider/NOTICE b/prebuilts/gradle/ActionBarCompat-ShareActionProvider/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ActionBarCompat-ShareActionProvider/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ActionBarCompat-Styled/Application/build.gradle b/prebuilts/gradle/ActionBarCompat-Styled/Application/build.gradle
index 4a3c4ad..0ee191a 100644
--- a/prebuilts/gradle/ActionBarCompat-Styled/Application/build.gradle
+++ b/prebuilts/gradle/ActionBarCompat-Styled/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ActionBarCompat-Styled/NOTICE b/prebuilts/gradle/ActionBarCompat-Styled/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ActionBarCompat-Styled/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ActiveNotification/.google/packaging.yaml b/prebuilts/gradle/ActiveNotification/.google/packaging.yaml
new file mode 100644
index 0000000..5aed7be
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/.google/packaging.yaml
@@ -0,0 +1,17 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFT
+technologies: [Android]
+categories:   [Getting Started, Notification]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-ActiveNotification
+level:        INTERMEDIATE
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.app.NotificationManager
+license: apache2
diff --git a/prebuilts/gradle/ActiveNotification/Application/build.gradle b/prebuilts/gradle/ActiveNotification/Application/build.gradle
new file mode 100644
index 0000000..cdec381
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/build.gradle
@@ -0,0 +1,73 @@
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.1.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+dependencies {
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion "android-MNC"
+    buildToolsVersion "22.0.1"
+
+    defaultConfig {
+        minSdkVersion "android-MNC"
+        targetSdkVersion "android-MNC"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..a7110ea
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.activenotification"
+    android:versionCode="1"
+    android:versionName="1.0">
+
+    <application android:allowBackup="true"
+        android:label="@string/app_name"
+        android:icon="@mipmap/ic_launcher"
+        android:theme="@style/AppTheme">
+
+        <activity android:name=".ActiveNotificationActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+
+</manifest>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/ActiveNotificationActivity.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/ActiveNotificationActivity.java
new file mode 100644
index 0000000..7ac7c8c
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/ActiveNotificationActivity.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.activenotification;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Bundle;
+import android.os.PersistableBundle;
+
+public class ActiveNotificationActivity extends MainActivity {
+
+    private ActiveNotificationFragment mFragment;
+
+    protected static final String ACTION_NOTIFICATION_DELETE
+            = "com.example.android.activenotification.delete";
+
+    private BroadcastReceiver mDeleteReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (mFragment == null) {
+                findFragment();
+            }
+            mFragment.updateNumberOfNotifications();
+        }
+    };
+
+    @Override
+    public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
+        super.onCreate(savedInstanceState, persistentState);
+        findFragment();
+        mFragment.updateNumberOfNotifications();
+    }
+
+    private void findFragment() {
+        mFragment = (ActiveNotificationFragment) getSupportFragmentManager()
+                .findFragmentById(R.id.sample_content_fragment);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        registerReceiver(mDeleteReceiver, new IntentFilter(ACTION_NOTIFICATION_DELETE));
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        unregisterReceiver(mDeleteReceiver);
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/ActiveNotificationFragment.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/ActiveNotificationFragment.java
new file mode 100644
index 0000000..0f4fbf1
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/ActiveNotificationFragment.java
@@ -0,0 +1,124 @@
+package com.example.android.activenotification;
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.service.notification.StatusBarNotification;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.example.android.common.logger.Log;
+
+/**
+ * A fragment that enables display of notifications.
+ */
+public class ActiveNotificationFragment extends Fragment {
+
+    private static final String TAG = "ActiveNotificationFragment";
+
+    private NotificationManager mNotificationManager;
+    private TextView mNumberOfNotifications;
+
+    // Every notification needs a unique ID otherwise the previous one would be overwritten.
+    private int mNotificationId = 0;
+    private PendingIntent mDeletePendingIntent;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_notification_builder, container, false);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        updateNumberOfNotifications();
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        mNotificationManager = (NotificationManager) getActivity().getSystemService(
+                Context.NOTIFICATION_SERVICE);
+        mNumberOfNotifications = (TextView) view.findViewById(R.id.number_of_notifications);
+
+        // Supply actions to the button that is displayed on screen.
+        View.OnClickListener onClickListener = new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                switch (v.getId()) {
+                    case R.id.add_notification: {
+                        addNotificationAndReadNumber();
+                        break;
+                    }
+                }
+            }
+        };
+        view.findViewById(R.id.add_notification).setOnClickListener(onClickListener);
+
+        // [BEGIN create_pending_intent_for_deletion]
+        // Create a PendingIntent to be fired upon deletion of a Notification.
+        Intent deleteIntent = new Intent(ActiveNotificationActivity.ACTION_NOTIFICATION_DELETE);
+        mDeletePendingIntent = PendingIntent.getBroadcast(getActivity(),
+                2323 /* requestCode */, deleteIntent, 0);
+        // [END create_pending_intent_for_deletion]
+    }
+
+    /**
+     * Add a new {@link Notification} with sample data and send it to the system.
+     * Then read the current number of displayed notifications for this application.
+     */
+    private void addNotificationAndReadNumber() {
+        // [BEGIN create_notification]
+        // Create a Notification and notify the system.
+        final Notification.Builder builder = new Notification.Builder(getActivity())
+                .setSmallIcon(R.mipmap.ic_notification)
+                .setContentTitle(getString(R.string.app_name))
+                .setContentText(getString(R.string.sample_notification_content))
+                .setAutoCancel(true)
+                .setDeleteIntent(mDeletePendingIntent);
+
+        final Notification notification = builder.build();
+        mNotificationManager.notify(++mNotificationId, notification);
+        // [END create_notification]
+        Log.i(TAG, "Add a notification");
+        updateNumberOfNotifications();
+    }
+
+    /**
+     * Request the current number of notifications from the {@link NotificationManager} and
+     * display them to the user.
+     */
+    protected void updateNumberOfNotifications() {
+        // [BEGIN get_active_notifications]
+        // Query the currently displayed notifications.
+        final StatusBarNotification[] activeNotifications = mNotificationManager
+                .getActiveNotifications();
+        // [END get_active_notifications]
+        final int numberOfNotifications = activeNotifications.length;
+        mNumberOfNotifications.setText(getString(R.string.active_notifications,
+                numberOfNotifications));
+        Log.i(TAG, getString(R.string.active_notifications, numberOfNotifications));
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/MainActivity.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/MainActivity.java
new file mode 100644
index 0000000..a1dacca
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/activenotification/MainActivity.java
@@ -0,0 +1,110 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+
+package com.example.android.activenotification;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentTransaction;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.ViewAnimator;
+
+import com.example.android.common.activities.SampleActivityBase;
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogFragment;
+import com.example.android.common.logger.LogWrapper;
+import com.example.android.common.logger.MessageOnlyLogFilter;
+
+/**
+ * A simple launcher activity containing a summary sample description, sample log and a custom
+ * {@link android.support.v4.app.Fragment} which can display a view.
+ * <p>
+ * For devices with displays with a width of 720dp or greater, the sample log is always visible,
+ * on other devices it's visibility is controlled by an item on the Action Bar.
+ */
+public class MainActivity extends SampleActivityBase {
+
+    public static final String TAG = "MainActivity";
+
+    // Whether the Log Fragment is currently shown
+    private boolean mLogShown;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        if (savedInstanceState == null) {
+            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+            ActiveNotificationFragment fragment = new ActiveNotificationFragment();
+            transaction.replace(R.id.sample_content_fragment, fragment);
+            transaction.commit();
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        MenuItem logToggle = menu.findItem(R.id.menu_toggle_log);
+        logToggle.setVisible(findViewById(R.id.sample_output) instanceof ViewAnimator);
+        logToggle.setTitle(mLogShown ? R.string.sample_hide_log : R.string.sample_show_log);
+
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch(item.getItemId()) {
+            case R.id.menu_toggle_log:
+                mLogShown = !mLogShown;
+                ViewAnimator output = (ViewAnimator) findViewById(R.id.sample_output);
+                if (mLogShown) {
+                    output.setDisplayedChild(1);
+                } else {
+                    output.setDisplayedChild(0);
+                }
+                supportInvalidateOptionsMenu();
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    /** Create a chain of targets that will receive log data */
+    @Override
+    public void initializeLogging() {
+        // Wraps Android's native log framework.
+        LogWrapper logWrapper = new LogWrapper();
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        Log.setLogNode(logWrapper);
+
+        // Filter strips out everything except the message text.
+        MessageOnlyLogFilter msgFilter = new MessageOnlyLogFilter();
+        logWrapper.setNext(msgFilter);
+
+        // On screen logging via a fragment with a TextView.
+        LogFragment logFragment = (LogFragment) getSupportFragmentManager()
+                .findFragmentById(R.id.log_fragment);
+        msgFilter.setNext(logFragment.getLogView());
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
new file mode 100644
index 0000000..3228927
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
@@ -0,0 +1,52 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.common.activities;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
+
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogWrapper;
+
+/**
+ * Base launcher activity, to handle most of the common plumbing for samples.
+ */
+public class SampleActivityBase extends FragmentActivity {
+
+    public static final String TAG = "SampleActivityBase";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    protected  void onStart() {
+        super.onStart();
+        initializeLogging();
+    }
+
+    /** Set up targets to receive log data */
+    public void initializeLogging() {
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        // Wraps Android's native log framework
+        LogWrapper logWrapper = new LogWrapper();
+        Log.setLogNode(logWrapper);
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/Log.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/Log.java
new file mode 100644
index 0000000..17503c5
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/Log.java
@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Helper class for a list (or tree) of LoggerNodes.
+ *
+ * <p>When this is set as the head of the list,
+ * an instance of it can function as a drop-in replacement for {@link android.util.Log}.
+ * Most of the methods in this class server only to map a method call in Log to its equivalent
+ * in LogNode.</p>
+ */
+public class Log {
+    // Grabbing the native values from Android's native logging facilities,
+    // to make for easy migration and interop.
+    public static final int NONE = -1;
+    public static final int VERBOSE = android.util.Log.VERBOSE;
+    public static final int DEBUG = android.util.Log.DEBUG;
+    public static final int INFO = android.util.Log.INFO;
+    public static final int WARN = android.util.Log.WARN;
+    public static final int ERROR = android.util.Log.ERROR;
+    public static final int ASSERT = android.util.Log.ASSERT;
+
+    // Stores the beginning of the LogNode topology.
+    private static LogNode mLogNode;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public static LogNode getLogNode() {
+        return mLogNode;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to.
+     */
+    public static void setLogNode(LogNode node) {
+        mLogNode = node;
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void println(int priority, String tag, String msg, Throwable tr) {
+        if (mLogNode != null) {
+            mLogNode.println(priority, tag, msg, tr);
+        }
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     */
+    public static void println(int priority, String tag, String msg) {
+        println(priority, tag, msg, null);
+    }
+
+   /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void v(String tag, String msg, Throwable tr) {
+        println(VERBOSE, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void v(String tag, String msg) {
+        v(tag, msg, null);
+    }
+
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void d(String tag, String msg, Throwable tr) {
+        println(DEBUG, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void d(String tag, String msg) {
+        d(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void i(String tag, String msg, Throwable tr) {
+        println(INFO, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void i(String tag, String msg) {
+        i(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, String msg, Throwable tr) {
+        println(WARN, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void w(String tag, String msg) {
+        w(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, Throwable tr) {
+        w(tag, null, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void e(String tag, String msg, Throwable tr) {
+        println(ERROR, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void e(String tag, String msg) {
+        e(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, String msg, Throwable tr) {
+        println(ASSERT, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void wtf(String tag, String msg) {
+        wtf(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, Throwable tr) {
+        wtf(tag, null, tr);
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogFragment.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogFragment.java
new file mode 100644
index 0000000..b302acd
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogFragment.java
@@ -0,0 +1,109 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.common.logger;
+
+import android.graphics.Typeface;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ScrollView;
+
+/**
+ * Simple fraggment which contains a LogView and uses is to output log data it receives
+ * through the LogNode interface.
+ */
+public class LogFragment extends Fragment {
+
+    private LogView mLogView;
+    private ScrollView mScrollView;
+
+    public LogFragment() {}
+
+    public View inflateViews() {
+        mScrollView = new ScrollView(getActivity());
+        ViewGroup.LayoutParams scrollParams = new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.MATCH_PARENT);
+        mScrollView.setLayoutParams(scrollParams);
+
+        mLogView = new LogView(getActivity());
+        ViewGroup.LayoutParams logParams = new ViewGroup.LayoutParams(scrollParams);
+        logParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
+        mLogView.setLayoutParams(logParams);
+        mLogView.setClickable(true);
+        mLogView.setFocusable(true);
+        mLogView.setTypeface(Typeface.MONOSPACE);
+
+        // Want to set padding as 16 dips, setPadding takes pixels.  Hooray math!
+        int paddingDips = 16;
+        double scale = getResources().getDisplayMetrics().density;
+        int paddingPixels = (int) ((paddingDips * (scale)) + .5);
+        mLogView.setPadding(paddingPixels, paddingPixels, paddingPixels, paddingPixels);
+        mLogView.setCompoundDrawablePadding(paddingPixels);
+
+        mLogView.setGravity(Gravity.BOTTOM);
+        mLogView.setTextAppearance(getActivity(), android.R.style.TextAppearance_Holo_Medium);
+
+        mScrollView.addView(mLogView);
+        return mScrollView;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        View result = inflateViews();
+
+        mLogView.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {}
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                mScrollView.fullScroll(ScrollView.FOCUS_DOWN);
+            }
+        });
+        return result;
+    }
+
+    public LogView getLogView() {
+        return mLogView;
+    }
+}
\ No newline at end of file
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogNode.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogNode.java
new file mode 100644
index 0000000..bc37cab
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogNode.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Basic interface for a logging system that can output to one or more targets.
+ * Note that in addition to classes that will output these logs in some format,
+ * one can also implement this interface over a filter and insert that in the chain,
+ * such that no targets further down see certain data, or see manipulated forms of the data.
+ * You could, for instance, write a "ToHtmlLoggerNode" that just converted all the log data
+ * it received to HTML and sent it along to the next node in the chain, without printing it
+ * anywhere.
+ */
+public interface LogNode {
+
+    /**
+     * Instructs first LogNode in the list to print the log data provided.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public void println(int priority, String tag, String msg, Throwable tr);
+
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogView.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogView.java
new file mode 100644
index 0000000..c01542b
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogView.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.app.Activity;
+import android.content.Context;
+import android.util.*;
+import android.widget.TextView;
+
+/** Simple TextView which is used to output log data received through the LogNode interface.
+*/
+public class LogView extends TextView implements LogNode {
+
+    public LogView(Context context) {
+        super(context);
+    }
+
+    public LogView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public LogView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    /**
+     * Formats the log data and prints it out to the LogView.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+
+        
+        String priorityStr = null;
+
+        // For the purposes of this View, we want to print the priority as readable text.
+        switch(priority) {
+            case android.util.Log.VERBOSE:
+                priorityStr = "VERBOSE";
+                break;
+            case android.util.Log.DEBUG:
+                priorityStr = "DEBUG";
+                break;
+            case android.util.Log.INFO:
+                priorityStr = "INFO";
+                break;
+            case android.util.Log.WARN:
+                priorityStr = "WARN";
+                break;
+            case android.util.Log.ERROR:
+                priorityStr = "ERROR";
+                break;
+            case android.util.Log.ASSERT:
+                priorityStr = "ASSERT";
+                break;
+            default:
+                break;
+        }
+
+        // Handily, the Log class has a facility for converting a stack trace into a usable string.
+        String exceptionStr = null;
+        if (tr != null) {
+            exceptionStr = android.util.Log.getStackTraceString(tr);
+        }
+
+        // Take the priority, tag, message, and exception, and concatenate as necessary
+        // into one usable line of text.
+        final StringBuilder outputBuilder = new StringBuilder();
+
+        String delimiter = "\t";
+        appendIfNotNull(outputBuilder, priorityStr, delimiter);
+        appendIfNotNull(outputBuilder, tag, delimiter);
+        appendIfNotNull(outputBuilder, msg, delimiter);
+        appendIfNotNull(outputBuilder, exceptionStr, delimiter);
+
+        // In case this was originally called from an AsyncTask or some other off-UI thread,
+        // make sure the update occurs within the UI thread.
+        ((Activity) getContext()).runOnUiThread( (new Thread(new Runnable() {
+            @Override
+            public void run() {
+                // Display the text we just generated within the LogView.
+                appendToLog(outputBuilder.toString());
+            }
+        })));
+
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /** Takes a string and adds to it, with a separator, if the bit to be added isn't null. Since
+     * the logger takes so many arguments that might be null, this method helps cut out some of the
+     * agonizing tedium of writing the same 3 lines over and over.
+     * @param source StringBuilder containing the text to append to.
+     * @param addStr The String to append
+     * @param delimiter The String to separate the source and appended strings. A tab or comma,
+     *                  for instance.
+     * @return The fully concatenated String as a StringBuilder
+     */
+    private StringBuilder appendIfNotNull(StringBuilder source, String addStr, String delimiter) {
+        if (addStr != null) {
+            if (addStr.length() == 0) {
+                delimiter = "";
+            }
+
+            return source.append(addStr).append(delimiter);
+        }
+        return source;
+    }
+
+    // The next LogNode in the chain.
+    LogNode mNext;
+
+    /** Outputs the string as a new line of log data in the LogView. */
+    public void appendToLog(String s) {
+        append("\n" + s);
+    }
+
+
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogWrapper.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
new file mode 100644
index 0000000..16a9e7b
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.util.Log;
+
+/**
+ * Helper class which wraps Android's native Log utility in the Logger interface.  This way
+ * normal DDMS output can be one of the many targets receiving and outputting logs simultaneously.
+ */
+public class LogWrapper implements LogNode {
+
+    // For piping:  The next node to receive Log data after this one has done its work.
+    private LogNode mNext;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /**
+     * Prints data out to the console using Android's native log mechanism.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        // There actually are log methods that don't take a msg parameter.  For now,
+        // if that's the case, just convert null to the empty string and move on.
+        String useMsg = msg;
+        if (useMsg == null) {
+            useMsg = "";
+        }
+
+        // If an exeption was provided, convert that exception to a usable string and attach
+        // it to the end of the msg method.
+        if (tr != null) {
+            msg += "\n" + Log.getStackTraceString(tr);
+        }
+
+        // This is functionally identical to Log.x(tag, useMsg);
+        // For instance, if priority were Log.VERBOSE, this would be the same as Log.v(tag, useMsg)
+        Log.println(priority, tag, useMsg);
+
+        // If this isn't the last node in the chain, move things along.
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
new file mode 100644
index 0000000..19967dc
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Simple {@link LogNode} filter, removes everything except the message.
+ * Useful for situations like on-screen log output where you don't want a lot of metadata displayed,
+ * just easy-to-read message updates as they're happening.
+ */
+public class MessageOnlyLogFilter implements LogNode {
+
+    LogNode mNext;
+
+    /**
+     * Takes the "next" LogNode as a parameter, to simplify chaining.
+     *
+     * @param next The next LogNode in the pipeline.
+     */
+    public MessageOnlyLogFilter(LogNode next) {
+        mNext = next;
+    }
+
+    public MessageOnlyLogFilter() {
+    }
+
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        if (mNext != null) {
+            getNext().println(Log.NONE, null, msg, null);
+        }
+    }
+
+    /**
+     * Returns the next LogNode in the chain.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+}
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout-w720dp/activity_main.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout-w720dp/activity_main.xml
new file mode 100755
index 0000000..c9a52f6
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout-w720dp/activity_main.xml
@@ -0,0 +1,73 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="horizontal"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <LinearLayout
+          android:id="@+id/sample_output"
+          android:layout_width="0px"
+          android:layout_height="match_parent"
+          android:layout_weight="1"
+          android:orientation="vertical">
+
+        <FrameLayout
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/margin_medium"
+                  android:paddingRight="@dimen/margin_medium"
+                  android:paddingTop="@dimen/margin_large"
+                  android:paddingBottom="@dimen/margin_large"
+                  android:text="@string/intro_message" />
+        </FrameLayout>
+
+        <View
+              android:layout_width="match_parent"
+              android:layout_height="1dp"
+              android:background="@android:color/darker_gray" />
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="0px"
+              android:layout_weight="1" />
+
+    </LinearLayout>
+
+    <View
+          android:layout_width="1dp"
+          android:layout_height="match_parent"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="0px"
+          android:layout_height="match_parent" />
+
+</LinearLayout>
+
+
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout/activity_main.xml
new file mode 100755
index 0000000..1ae4f98
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,65 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="vertical"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <ViewAnimator
+          android:id="@+id/sample_output"
+          android:layout_width="match_parent"
+          android:layout_height="0px"
+          android:layout_weight="1">
+
+        <ScrollView
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/horizontal_page_margin"
+                  android:paddingRight="@dimen/horizontal_page_margin"
+                  android:paddingTop="@dimen/vertical_page_margin"
+                  android:paddingBottom="@dimen/vertical_page_margin"
+                  android:text="@string/intro_message" />
+        </ScrollView>
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent" />
+
+    </ViewAnimator>
+
+    <View
+          android:layout_width="match_parent"
+          android:layout_height="1dp"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="match_parent"
+          android:layout_height="0px" />
+
+</LinearLayout>
+
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout/fragment_notification_builder.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout/fragment_notification_builder.xml
new file mode 100644
index 0000000..379cd5e
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/layout/fragment_notification_builder.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+    <Button
+        android:id="@+id/add_notification"
+        android:text="@string/add_a_notification"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+    </LinearLayout>
+
+    <TextView
+        style="@android:style/TextAppearance.Material.Large"
+        android:id="@+id/number_of_notifications"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+</LinearLayout>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/menu/main.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/menu/main.xml
new file mode 100644
index 0000000..b49c2c5
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/menu/main.xml
@@ -0,0 +1,21 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_toggle_log"
+          android:showAsAction="always"
+          android:title="@string/sample_show_log" />
+</menu>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..b176e69
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-hdpi/ic_notification.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-hdpi/ic_notification.png
new file mode 100644
index 0000000..efb231d
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-hdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..205654f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-mdpi/ic_notification.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-mdpi/ic_notification.png
new file mode 100644
index 0000000..b5f1bc9
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-mdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..98262ee
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xhdpi/ic_notification.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xhdpi/ic_notification.png
new file mode 100644
index 0000000..3361f2d
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xhdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..325875a
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxhdpi/ic_notification.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxhdpi/ic_notification.png
new file mode 100644
index 0000000..7d1946a
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxhdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..254c775
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxxhdpi/ic_notification.png b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxxhdpi/ic_notification.png
new file mode 100644
index 0000000..47b12c9
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/mipmap-xxxhdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..5fc846c
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">ActiveNotification</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+The NotificationManager can tell you how many notifications your application is currently showing.
+This sample demonstrates how to use this API that has been introduced with Android M.
+To get started, press the "add a notification" button.
+When a notification is being canceled, the count gets updated via a PendingIntent.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/fragmentview_strings.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/fragmentview_strings.xml
new file mode 100755
index 0000000..7b9d9ec
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/fragmentview_strings.xml
@@ -0,0 +1,19 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<resources>
+    <string name="sample_show_log">Show Log</string>
+    <string name="sample_hide_log">Hide Log</string>
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/strings.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..0f2977d
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/strings.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+ <string name="add_a_notification">Add a notification</string>
+ <string name="active_notifications">Active Notifications: %1$s</string>
+ <string name="update_notification_count">Update count</string>
+ <string name="sample_notification_content">This is a sample notification.</string>
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotification/CONTRIBUTING.md b/prebuilts/gradle/ActiveNotification/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/ActiveNotification/LICENSE b/prebuilts/gradle/ActiveNotification/LICENSE
new file mode 100644
index 0000000..1af981f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
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+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2014 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/prebuilts/gradle/ActiveNotification/README.md b/prebuilts/gradle/ActiveNotification/README.md
new file mode 100644
index 0000000..af886d3
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/README.md
@@ -0,0 +1,72 @@
+
+Android ActiveNotification Sample
+===================================
+
+The NotificationManager can tell you how many notifications your application is
+            currently showing. This sample demonstrates how to use this API that has been
+            introduced with Android M.
+
+Introduction
+------------
+
+The [NotificationManager][1] has become more powerful.
+            Starting with Android M, you can query it for the active notifications that
+            your app sent using the [notify][2] methods.
+
+            This sample demonstrates simple use of this newly added functionality by
+            allowing a user to add notifications and then querying how many notifications
+            are currently being displayed via the [getActiveNotifications()][3] method.
+
+            [1]: https://developer.android.com/reference/android/app/NotificationManager.html
+            [2]: https://developer.android.com/reference/android/app/NotificationManager.html#notify(int, android.app.Notification)
+            [2]: https://developer.android.com/reference/android/app/NotificationManager.html#getActiveNotifications()
+
+Pre-requisites
+--------------
+
+- Android SDK vandroid-MNC
+- Android Build Tools v22.0.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/screenshot01.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot02.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot03.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-ActiveNotification
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/ActiveNotification/build.gradle b/prebuilts/gradle/ActiveNotification/build.gradle
new file mode 100644
index 0000000..1dac6de
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ActiveNotification/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/ActiveNotification/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/ActiveNotification/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..afb3296
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-2.2.1-bin.zip
diff --git a/prebuilts/gradle/ActiveNotification/gradlew b/prebuilts/gradle/ActiveNotification/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/ActiveNotification/gradlew.bat b/prebuilts/gradle/ActiveNotification/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/ActiveNotification/screenshots/icon_web.png b/prebuilts/gradle/ActiveNotification/screenshots/icon_web.png
new file mode 100644
index 0000000..063813b
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/screenshots/icon_web.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/screenshots/screenshot01.png b/prebuilts/gradle/ActiveNotification/screenshots/screenshot01.png
new file mode 100644
index 0000000..f37e97f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/screenshots/screenshot01.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/screenshots/screenshot02.png b/prebuilts/gradle/ActiveNotification/screenshots/screenshot02.png
new file mode 100644
index 0000000..46c3408
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/screenshots/screenshot02.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/screenshots/screenshot03.png b/prebuilts/gradle/ActiveNotification/screenshots/screenshot03.png
new file mode 100644
index 0000000..702f299
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/screenshots/screenshot03.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotification/settings.gradle b/prebuilts/gradle/ActiveNotification/settings.gradle
new file mode 100644
index 0000000..9464a35
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotification/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/ActiveNotifications/.google/packaging.yaml b/prebuilts/gradle/ActiveNotifications/.google/packaging.yaml
new file mode 100644
index 0000000..5aed7be
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/.google/packaging.yaml
@@ -0,0 +1,17 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFT
+technologies: [Android]
+categories:   [Getting Started, Notification]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-ActiveNotification
+level:        INTERMEDIATE
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.app.NotificationManager
+license: apache2
diff --git a/prebuilts/gradle/ActiveNotifications/Application/build.gradle b/prebuilts/gradle/ActiveNotifications/Application/build.gradle
new file mode 100644
index 0000000..c467c43
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/build.gradle
@@ -0,0 +1,73 @@
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.2.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+dependencies {
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion "android-MNC"
+    buildToolsVersion "22.0.1"
+
+    defaultConfig {
+        minSdkVersion "MNC"
+        targetSdkVersion "MNC"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..3a39282
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.activenotifications"
+    android:versionCode="1"
+    android:versionName="1.0">
+
+    <application android:allowBackup="true"
+        android:label="@string/app_name"
+        android:icon="@mipmap/ic_launcher"
+        android:theme="@style/AppTheme">
+
+        <activity android:name=".ActiveNotificationActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+
+</manifest>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/ActiveNotificationActivity.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/ActiveNotificationActivity.java
new file mode 100644
index 0000000..bdb5421
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/ActiveNotificationActivity.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.activenotifications;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Bundle;
+import android.os.PersistableBundle;
+
+public class ActiveNotificationActivity extends MainActivity {
+
+    private ActiveNotificationFragment mFragment;
+
+    protected static final String ACTION_NOTIFICATION_DELETE
+            = "com.example.android.activenotifications.delete";
+
+    private BroadcastReceiver mDeleteReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (mFragment == null) {
+                findFragment();
+            }
+            mFragment.updateNumberOfNotifications();
+        }
+    };
+
+    @Override
+    public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
+        super.onCreate(savedInstanceState, persistentState);
+        findFragment();
+        mFragment.updateNumberOfNotifications();
+    }
+
+    private void findFragment() {
+        mFragment = (ActiveNotificationFragment) getSupportFragmentManager()
+                .findFragmentById(R.id.sample_content_fragment);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        registerReceiver(mDeleteReceiver, new IntentFilter(ACTION_NOTIFICATION_DELETE));
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        unregisterReceiver(mDeleteReceiver);
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/ActiveNotificationFragment.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/ActiveNotificationFragment.java
new file mode 100644
index 0000000..3e87849
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/ActiveNotificationFragment.java
@@ -0,0 +1,124 @@
+package com.example.android.activenotifications;
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.service.notification.StatusBarNotification;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.example.android.common.logger.Log;
+
+/**
+ * A fragment that enables display of notifications.
+ */
+public class ActiveNotificationFragment extends Fragment {
+
+    private static final String TAG = "ActiveNotificationFragment";
+
+    private NotificationManager mNotificationManager;
+    private TextView mNumberOfNotifications;
+
+    // Every notification needs a unique ID otherwise the previous one would be overwritten.
+    private int mNotificationId = 0;
+    private PendingIntent mDeletePendingIntent;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_notification_builder, container, false);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        updateNumberOfNotifications();
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        mNotificationManager = (NotificationManager) getActivity().getSystemService(
+                Context.NOTIFICATION_SERVICE);
+        mNumberOfNotifications = (TextView) view.findViewById(R.id.number_of_notifications);
+
+        // Supply actions to the button that is displayed on screen.
+        View.OnClickListener onClickListener = new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                switch (v.getId()) {
+                    case R.id.add_notification: {
+                        addNotificationAndReadNumber();
+                        break;
+                    }
+                }
+            }
+        };
+        view.findViewById(R.id.add_notification).setOnClickListener(onClickListener);
+
+        // [BEGIN create_pending_intent_for_deletion]
+        // Create a PendingIntent to be fired upon deletion of a Notification.
+        Intent deleteIntent = new Intent(ActiveNotificationActivity.ACTION_NOTIFICATION_DELETE);
+        mDeletePendingIntent = PendingIntent.getBroadcast(getActivity(),
+                2323 /* requestCode */, deleteIntent, 0);
+        // [END create_pending_intent_for_deletion]
+    }
+
+    /**
+     * Add a new {@link Notification} with sample data and send it to the system.
+     * Then read the current number of displayed notifications for this application.
+     */
+    private void addNotificationAndReadNumber() {
+        // [BEGIN create_notification]
+        // Create a Notification and notify the system.
+        final Notification.Builder builder = new Notification.Builder(getActivity())
+                .setSmallIcon(R.mipmap.ic_notification)
+                .setContentTitle(getString(R.string.app_name))
+                .setContentText(getString(R.string.sample_notification_content))
+                .setAutoCancel(true)
+                .setDeleteIntent(mDeletePendingIntent);
+
+        final Notification notification = builder.build();
+        mNotificationManager.notify(++mNotificationId, notification);
+        // [END create_notification]
+        Log.i(TAG, "Add a notification");
+        updateNumberOfNotifications();
+    }
+
+    /**
+     * Request the current number of notifications from the {@link NotificationManager} and
+     * display them to the user.
+     */
+    protected void updateNumberOfNotifications() {
+        // [BEGIN get_active_notifications]
+        // Query the currently displayed notifications.
+        final StatusBarNotification[] activeNotifications = mNotificationManager
+                .getActiveNotifications();
+        // [END get_active_notifications]
+        final int numberOfNotifications = activeNotifications.length;
+        mNumberOfNotifications.setText(getString(R.string.active_notifications,
+                numberOfNotifications));
+        Log.i(TAG, getString(R.string.active_notifications, numberOfNotifications));
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/MainActivity.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/MainActivity.java
new file mode 100644
index 0000000..bf11b8e
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/activenotifications/MainActivity.java
@@ -0,0 +1,110 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+
+package com.example.android.activenotifications;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentTransaction;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.ViewAnimator;
+
+import com.example.android.common.activities.SampleActivityBase;
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogFragment;
+import com.example.android.common.logger.LogWrapper;
+import com.example.android.common.logger.MessageOnlyLogFilter;
+
+/**
+ * A simple launcher activity containing a summary sample description, sample log and a custom
+ * {@link android.support.v4.app.Fragment} which can display a view.
+ * <p>
+ * For devices with displays with a width of 720dp or greater, the sample log is always visible,
+ * on other devices it's visibility is controlled by an item on the Action Bar.
+ */
+public class MainActivity extends SampleActivityBase {
+
+    public static final String TAG = "MainActivity";
+
+    // Whether the Log Fragment is currently shown
+    private boolean mLogShown;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        if (savedInstanceState == null) {
+            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+            ActiveNotificationFragment fragment = new ActiveNotificationFragment();
+            transaction.replace(R.id.sample_content_fragment, fragment);
+            transaction.commit();
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        MenuItem logToggle = menu.findItem(R.id.menu_toggle_log);
+        logToggle.setVisible(findViewById(R.id.sample_output) instanceof ViewAnimator);
+        logToggle.setTitle(mLogShown ? R.string.sample_hide_log : R.string.sample_show_log);
+
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch(item.getItemId()) {
+            case R.id.menu_toggle_log:
+                mLogShown = !mLogShown;
+                ViewAnimator output = (ViewAnimator) findViewById(R.id.sample_output);
+                if (mLogShown) {
+                    output.setDisplayedChild(1);
+                } else {
+                    output.setDisplayedChild(0);
+                }
+                supportInvalidateOptionsMenu();
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    /** Create a chain of targets that will receive log data */
+    @Override
+    public void initializeLogging() {
+        // Wraps Android's native log framework.
+        LogWrapper logWrapper = new LogWrapper();
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        Log.setLogNode(logWrapper);
+
+        // Filter strips out everything except the message text.
+        MessageOnlyLogFilter msgFilter = new MessageOnlyLogFilter();
+        logWrapper.setNext(msgFilter);
+
+        // On screen logging via a fragment with a TextView.
+        LogFragment logFragment = (LogFragment) getSupportFragmentManager()
+                .findFragmentById(R.id.log_fragment);
+        msgFilter.setNext(logFragment.getLogView());
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
new file mode 100644
index 0000000..3228927
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
@@ -0,0 +1,52 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.common.activities;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
+
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogWrapper;
+
+/**
+ * Base launcher activity, to handle most of the common plumbing for samples.
+ */
+public class SampleActivityBase extends FragmentActivity {
+
+    public static final String TAG = "SampleActivityBase";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    protected  void onStart() {
+        super.onStart();
+        initializeLogging();
+    }
+
+    /** Set up targets to receive log data */
+    public void initializeLogging() {
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        // Wraps Android's native log framework
+        LogWrapper logWrapper = new LogWrapper();
+        Log.setLogNode(logWrapper);
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/Log.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/Log.java
new file mode 100644
index 0000000..17503c5
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/Log.java
@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Helper class for a list (or tree) of LoggerNodes.
+ *
+ * <p>When this is set as the head of the list,
+ * an instance of it can function as a drop-in replacement for {@link android.util.Log}.
+ * Most of the methods in this class server only to map a method call in Log to its equivalent
+ * in LogNode.</p>
+ */
+public class Log {
+    // Grabbing the native values from Android's native logging facilities,
+    // to make for easy migration and interop.
+    public static final int NONE = -1;
+    public static final int VERBOSE = android.util.Log.VERBOSE;
+    public static final int DEBUG = android.util.Log.DEBUG;
+    public static final int INFO = android.util.Log.INFO;
+    public static final int WARN = android.util.Log.WARN;
+    public static final int ERROR = android.util.Log.ERROR;
+    public static final int ASSERT = android.util.Log.ASSERT;
+
+    // Stores the beginning of the LogNode topology.
+    private static LogNode mLogNode;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public static LogNode getLogNode() {
+        return mLogNode;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to.
+     */
+    public static void setLogNode(LogNode node) {
+        mLogNode = node;
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void println(int priority, String tag, String msg, Throwable tr) {
+        if (mLogNode != null) {
+            mLogNode.println(priority, tag, msg, tr);
+        }
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     */
+    public static void println(int priority, String tag, String msg) {
+        println(priority, tag, msg, null);
+    }
+
+   /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void v(String tag, String msg, Throwable tr) {
+        println(VERBOSE, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void v(String tag, String msg) {
+        v(tag, msg, null);
+    }
+
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void d(String tag, String msg, Throwable tr) {
+        println(DEBUG, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void d(String tag, String msg) {
+        d(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void i(String tag, String msg, Throwable tr) {
+        println(INFO, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void i(String tag, String msg) {
+        i(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, String msg, Throwable tr) {
+        println(WARN, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void w(String tag, String msg) {
+        w(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, Throwable tr) {
+        w(tag, null, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void e(String tag, String msg, Throwable tr) {
+        println(ERROR, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void e(String tag, String msg) {
+        e(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, String msg, Throwable tr) {
+        println(ASSERT, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void wtf(String tag, String msg) {
+        wtf(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, Throwable tr) {
+        wtf(tag, null, tr);
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogFragment.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogFragment.java
new file mode 100644
index 0000000..b302acd
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogFragment.java
@@ -0,0 +1,109 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.common.logger;
+
+import android.graphics.Typeface;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ScrollView;
+
+/**
+ * Simple fraggment which contains a LogView and uses is to output log data it receives
+ * through the LogNode interface.
+ */
+public class LogFragment extends Fragment {
+
+    private LogView mLogView;
+    private ScrollView mScrollView;
+
+    public LogFragment() {}
+
+    public View inflateViews() {
+        mScrollView = new ScrollView(getActivity());
+        ViewGroup.LayoutParams scrollParams = new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.MATCH_PARENT);
+        mScrollView.setLayoutParams(scrollParams);
+
+        mLogView = new LogView(getActivity());
+        ViewGroup.LayoutParams logParams = new ViewGroup.LayoutParams(scrollParams);
+        logParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
+        mLogView.setLayoutParams(logParams);
+        mLogView.setClickable(true);
+        mLogView.setFocusable(true);
+        mLogView.setTypeface(Typeface.MONOSPACE);
+
+        // Want to set padding as 16 dips, setPadding takes pixels.  Hooray math!
+        int paddingDips = 16;
+        double scale = getResources().getDisplayMetrics().density;
+        int paddingPixels = (int) ((paddingDips * (scale)) + .5);
+        mLogView.setPadding(paddingPixels, paddingPixels, paddingPixels, paddingPixels);
+        mLogView.setCompoundDrawablePadding(paddingPixels);
+
+        mLogView.setGravity(Gravity.BOTTOM);
+        mLogView.setTextAppearance(getActivity(), android.R.style.TextAppearance_Holo_Medium);
+
+        mScrollView.addView(mLogView);
+        return mScrollView;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        View result = inflateViews();
+
+        mLogView.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {}
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                mScrollView.fullScroll(ScrollView.FOCUS_DOWN);
+            }
+        });
+        return result;
+    }
+
+    public LogView getLogView() {
+        return mLogView;
+    }
+}
\ No newline at end of file
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogNode.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogNode.java
new file mode 100644
index 0000000..bc37cab
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogNode.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Basic interface for a logging system that can output to one or more targets.
+ * Note that in addition to classes that will output these logs in some format,
+ * one can also implement this interface over a filter and insert that in the chain,
+ * such that no targets further down see certain data, or see manipulated forms of the data.
+ * You could, for instance, write a "ToHtmlLoggerNode" that just converted all the log data
+ * it received to HTML and sent it along to the next node in the chain, without printing it
+ * anywhere.
+ */
+public interface LogNode {
+
+    /**
+     * Instructs first LogNode in the list to print the log data provided.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public void println(int priority, String tag, String msg, Throwable tr);
+
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogView.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogView.java
new file mode 100644
index 0000000..c01542b
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogView.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.app.Activity;
+import android.content.Context;
+import android.util.*;
+import android.widget.TextView;
+
+/** Simple TextView which is used to output log data received through the LogNode interface.
+*/
+public class LogView extends TextView implements LogNode {
+
+    public LogView(Context context) {
+        super(context);
+    }
+
+    public LogView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public LogView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    /**
+     * Formats the log data and prints it out to the LogView.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+
+        
+        String priorityStr = null;
+
+        // For the purposes of this View, we want to print the priority as readable text.
+        switch(priority) {
+            case android.util.Log.VERBOSE:
+                priorityStr = "VERBOSE";
+                break;
+            case android.util.Log.DEBUG:
+                priorityStr = "DEBUG";
+                break;
+            case android.util.Log.INFO:
+                priorityStr = "INFO";
+                break;
+            case android.util.Log.WARN:
+                priorityStr = "WARN";
+                break;
+            case android.util.Log.ERROR:
+                priorityStr = "ERROR";
+                break;
+            case android.util.Log.ASSERT:
+                priorityStr = "ASSERT";
+                break;
+            default:
+                break;
+        }
+
+        // Handily, the Log class has a facility for converting a stack trace into a usable string.
+        String exceptionStr = null;
+        if (tr != null) {
+            exceptionStr = android.util.Log.getStackTraceString(tr);
+        }
+
+        // Take the priority, tag, message, and exception, and concatenate as necessary
+        // into one usable line of text.
+        final StringBuilder outputBuilder = new StringBuilder();
+
+        String delimiter = "\t";
+        appendIfNotNull(outputBuilder, priorityStr, delimiter);
+        appendIfNotNull(outputBuilder, tag, delimiter);
+        appendIfNotNull(outputBuilder, msg, delimiter);
+        appendIfNotNull(outputBuilder, exceptionStr, delimiter);
+
+        // In case this was originally called from an AsyncTask or some other off-UI thread,
+        // make sure the update occurs within the UI thread.
+        ((Activity) getContext()).runOnUiThread( (new Thread(new Runnable() {
+            @Override
+            public void run() {
+                // Display the text we just generated within the LogView.
+                appendToLog(outputBuilder.toString());
+            }
+        })));
+
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /** Takes a string and adds to it, with a separator, if the bit to be added isn't null. Since
+     * the logger takes so many arguments that might be null, this method helps cut out some of the
+     * agonizing tedium of writing the same 3 lines over and over.
+     * @param source StringBuilder containing the text to append to.
+     * @param addStr The String to append
+     * @param delimiter The String to separate the source and appended strings. A tab or comma,
+     *                  for instance.
+     * @return The fully concatenated String as a StringBuilder
+     */
+    private StringBuilder appendIfNotNull(StringBuilder source, String addStr, String delimiter) {
+        if (addStr != null) {
+            if (addStr.length() == 0) {
+                delimiter = "";
+            }
+
+            return source.append(addStr).append(delimiter);
+        }
+        return source;
+    }
+
+    // The next LogNode in the chain.
+    LogNode mNext;
+
+    /** Outputs the string as a new line of log data in the LogView. */
+    public void appendToLog(String s) {
+        append("\n" + s);
+    }
+
+
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogWrapper.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
new file mode 100644
index 0000000..16a9e7b
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.util.Log;
+
+/**
+ * Helper class which wraps Android's native Log utility in the Logger interface.  This way
+ * normal DDMS output can be one of the many targets receiving and outputting logs simultaneously.
+ */
+public class LogWrapper implements LogNode {
+
+    // For piping:  The next node to receive Log data after this one has done its work.
+    private LogNode mNext;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /**
+     * Prints data out to the console using Android's native log mechanism.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        // There actually are log methods that don't take a msg parameter.  For now,
+        // if that's the case, just convert null to the empty string and move on.
+        String useMsg = msg;
+        if (useMsg == null) {
+            useMsg = "";
+        }
+
+        // If an exeption was provided, convert that exception to a usable string and attach
+        // it to the end of the msg method.
+        if (tr != null) {
+            msg += "\n" + Log.getStackTraceString(tr);
+        }
+
+        // This is functionally identical to Log.x(tag, useMsg);
+        // For instance, if priority were Log.VERBOSE, this would be the same as Log.v(tag, useMsg)
+        Log.println(priority, tag, useMsg);
+
+        // If this isn't the last node in the chain, move things along.
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
new file mode 100644
index 0000000..19967dc
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Simple {@link LogNode} filter, removes everything except the message.
+ * Useful for situations like on-screen log output where you don't want a lot of metadata displayed,
+ * just easy-to-read message updates as they're happening.
+ */
+public class MessageOnlyLogFilter implements LogNode {
+
+    LogNode mNext;
+
+    /**
+     * Takes the "next" LogNode as a parameter, to simplify chaining.
+     *
+     * @param next The next LogNode in the pipeline.
+     */
+    public MessageOnlyLogFilter(LogNode next) {
+        mNext = next;
+    }
+
+    public MessageOnlyLogFilter() {
+    }
+
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        if (mNext != null) {
+            getNext().println(Log.NONE, null, msg, null);
+        }
+    }
+
+    /**
+     * Returns the next LogNode in the chain.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+}
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout-w720dp/activity_main.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout-w720dp/activity_main.xml
new file mode 100755
index 0000000..c9a52f6
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout-w720dp/activity_main.xml
@@ -0,0 +1,73 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="horizontal"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <LinearLayout
+          android:id="@+id/sample_output"
+          android:layout_width="0px"
+          android:layout_height="match_parent"
+          android:layout_weight="1"
+          android:orientation="vertical">
+
+        <FrameLayout
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/margin_medium"
+                  android:paddingRight="@dimen/margin_medium"
+                  android:paddingTop="@dimen/margin_large"
+                  android:paddingBottom="@dimen/margin_large"
+                  android:text="@string/intro_message" />
+        </FrameLayout>
+
+        <View
+              android:layout_width="match_parent"
+              android:layout_height="1dp"
+              android:background="@android:color/darker_gray" />
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="0px"
+              android:layout_weight="1" />
+
+    </LinearLayout>
+
+    <View
+          android:layout_width="1dp"
+          android:layout_height="match_parent"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="0px"
+          android:layout_height="match_parent" />
+
+</LinearLayout>
+
+
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout/activity_main.xml
new file mode 100755
index 0000000..1ae4f98
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,65 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="vertical"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <ViewAnimator
+          android:id="@+id/sample_output"
+          android:layout_width="match_parent"
+          android:layout_height="0px"
+          android:layout_weight="1">
+
+        <ScrollView
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/horizontal_page_margin"
+                  android:paddingRight="@dimen/horizontal_page_margin"
+                  android:paddingTop="@dimen/vertical_page_margin"
+                  android:paddingBottom="@dimen/vertical_page_margin"
+                  android:text="@string/intro_message" />
+        </ScrollView>
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent" />
+
+    </ViewAnimator>
+
+    <View
+          android:layout_width="match_parent"
+          android:layout_height="1dp"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="match_parent"
+          android:layout_height="0px" />
+
+</LinearLayout>
+
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout/fragment_notification_builder.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout/fragment_notification_builder.xml
new file mode 100644
index 0000000..379cd5e
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/layout/fragment_notification_builder.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+    <Button
+        android:id="@+id/add_notification"
+        android:text="@string/add_a_notification"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+    </LinearLayout>
+
+    <TextView
+        style="@android:style/TextAppearance.Material.Large"
+        android:id="@+id/number_of_notifications"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+</LinearLayout>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/menu/main.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/menu/main.xml
new file mode 100644
index 0000000..b49c2c5
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/menu/main.xml
@@ -0,0 +1,21 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_toggle_log"
+          android:showAsAction="always"
+          android:title="@string/sample_show_log" />
+</menu>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..b176e69
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-hdpi/ic_notification.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-hdpi/ic_notification.png
new file mode 100644
index 0000000..efb231d
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-hdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..205654f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-mdpi/ic_notification.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-mdpi/ic_notification.png
new file mode 100644
index 0000000..b5f1bc9
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-mdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..98262ee
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xhdpi/ic_notification.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xhdpi/ic_notification.png
new file mode 100644
index 0000000..3361f2d
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xhdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..325875a
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxhdpi/ic_notification.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxhdpi/ic_notification.png
new file mode 100644
index 0000000..7d1946a
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxhdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..254c775
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxxhdpi/ic_notification.png b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxxhdpi/ic_notification.png
new file mode 100644
index 0000000..47b12c9
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/mipmap-xxxhdpi/ic_notification.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..5fc846c
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">ActiveNotification</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+The NotificationManager can tell you how many notifications your application is currently showing.
+This sample demonstrates how to use this API that has been introduced with Android M.
+To get started, press the "add a notification" button.
+When a notification is being canceled, the count gets updated via a PendingIntent.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/fragmentview_strings.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/fragmentview_strings.xml
new file mode 100755
index 0000000..7b9d9ec
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/fragmentview_strings.xml
@@ -0,0 +1,19 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<resources>
+    <string name="sample_show_log">Show Log</string>
+    <string name="sample_hide_log">Hide Log</string>
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/strings.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..0f2977d
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/strings.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+ <string name="add_a_notification">Add a notification</string>
+ <string name="active_notifications">Active Notifications: %1$s</string>
+ <string name="update_notification_count">Update count</string>
+ <string name="sample_notification_content">This is a sample notification.</string>
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ActiveNotifications/CONTRIBUTING.md b/prebuilts/gradle/ActiveNotifications/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/ActiveNotifications/LICENSE b/prebuilts/gradle/ActiveNotifications/LICENSE
new file mode 100644
index 0000000..4f22946
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/LICENSE
@@ -0,0 +1,647 @@
+Apache License
+--------------
+
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
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diff --git a/prebuilts/gradle/ActiveNotifications/README.md b/prebuilts/gradle/ActiveNotifications/README.md
new file mode 100644
index 0000000..af886d3
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/README.md
@@ -0,0 +1,72 @@
+
+Android ActiveNotification Sample
+===================================
+
+The NotificationManager can tell you how many notifications your application is
+            currently showing. This sample demonstrates how to use this API that has been
+            introduced with Android M.
+
+Introduction
+------------
+
+The [NotificationManager][1] has become more powerful.
+            Starting with Android M, you can query it for the active notifications that
+            your app sent using the [notify][2] methods.
+
+            This sample demonstrates simple use of this newly added functionality by
+            allowing a user to add notifications and then querying how many notifications
+            are currently being displayed via the [getActiveNotifications()][3] method.
+
+            [1]: https://developer.android.com/reference/android/app/NotificationManager.html
+            [2]: https://developer.android.com/reference/android/app/NotificationManager.html#notify(int, android.app.Notification)
+            [2]: https://developer.android.com/reference/android/app/NotificationManager.html#getActiveNotifications()
+
+Pre-requisites
+--------------
+
+- Android SDK vandroid-MNC
+- Android Build Tools v22.0.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/screenshot01.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot02.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot03.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-ActiveNotification
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/ActiveNotifications/build.gradle b/prebuilts/gradle/ActiveNotifications/build.gradle
new file mode 100644
index 0000000..1dac6de
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ActiveNotifications/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/ActiveNotifications/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/ActiveNotifications/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..afb3296
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-2.2.1-bin.zip
diff --git a/prebuilts/gradle/ActiveNotifications/gradlew b/prebuilts/gradle/ActiveNotifications/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/ActiveNotifications/gradlew.bat b/prebuilts/gradle/ActiveNotifications/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/ActiveNotifications/screenshots/icon_web.png b/prebuilts/gradle/ActiveNotifications/screenshots/icon_web.png
new file mode 100644
index 0000000..063813b
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/screenshots/icon_web.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/screenshots/screenshot01.png b/prebuilts/gradle/ActiveNotifications/screenshots/screenshot01.png
new file mode 100644
index 0000000..f37e97f
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/screenshots/screenshot01.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/screenshots/screenshot02.png b/prebuilts/gradle/ActiveNotifications/screenshots/screenshot02.png
new file mode 100644
index 0000000..46c3408
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/screenshots/screenshot02.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/screenshots/screenshot03.png b/prebuilts/gradle/ActiveNotifications/screenshots/screenshot03.png
new file mode 100644
index 0000000..702f299
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/screenshots/screenshot03.png
Binary files differ
diff --git a/prebuilts/gradle/ActiveNotifications/settings.gradle b/prebuilts/gradle/ActiveNotifications/settings.gradle
new file mode 100644
index 0000000..9464a35
--- /dev/null
+++ b/prebuilts/gradle/ActiveNotifications/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/ActivityInstrumentation/Application/build.gradle b/prebuilts/gradle/ActivityInstrumentation/Application/build.gradle
index eb1a23c..672e647 100644
--- a/prebuilts/gradle/ActivityInstrumentation/Application/build.gradle
+++ b/prebuilts/gradle/ActivityInstrumentation/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ActivityInstrumentation/NOTICE b/prebuilts/gradle/ActivityInstrumentation/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ActivityInstrumentation/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ActivitySceneTransitionBasic/Application/build.gradle b/prebuilts/gradle/ActivitySceneTransitionBasic/Application/build.gradle
index 19da178..fa1cec2 100644
--- a/prebuilts/gradle/ActivitySceneTransitionBasic/Application/build.gradle
+++ b/prebuilts/gradle/ActivitySceneTransitionBasic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ActivitySceneTransitionBasic/NOTICE b/prebuilts/gradle/ActivitySceneTransitionBasic/NOTICE
deleted file mode 100644
index 023fb1c..0000000
--- a/prebuilts/gradle/ActivitySceneTransitionBasic/NOTICE
+++ /dev/null
@@ -1,30 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
-Copyright 2013 Square, Inc.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/AdvancedImmersiveMode/Application/build.gradle b/prebuilts/gradle/AdvancedImmersiveMode/Application/build.gradle
index cedf6c9..db9a58b 100644
--- a/prebuilts/gradle/AdvancedImmersiveMode/Application/build.gradle
+++ b/prebuilts/gradle/AdvancedImmersiveMode/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/AdvancedImmersiveMode/NOTICE b/prebuilts/gradle/AdvancedImmersiveMode/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/AdvancedImmersiveMode/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/AgendaData/Application/build.gradle b/prebuilts/gradle/AgendaData/Application/build.gradle
index 86f88ca..b51c137 100644
--- a/prebuilts/gradle/AgendaData/Application/build.gradle
+++ b/prebuilts/gradle/AgendaData/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/AgendaData/Application/src/main/java/com/example/android/wearable/agendadata/MainActivity.java b/prebuilts/gradle/AgendaData/Application/src/main/java/com/example/android/wearable/agendadata/MainActivity.java
index 62dc349..34e327b 100644
--- a/prebuilts/gradle/AgendaData/Application/src/main/java/com/example/android/wearable/agendadata/MainActivity.java
+++ b/prebuilts/gradle/AgendaData/Application/src/main/java/com/example/android/wearable/agendadata/MainActivity.java
@@ -33,7 +33,6 @@
 import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
 import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
 import com.google.android.gms.common.api.ResultCallback;
-import com.google.android.gms.common.data.FreezableUtils;
 import com.google.android.gms.wearable.DataApi;
 import com.google.android.gms.wearable.DataItem;
 import com.google.android.gms.wearable.DataItemBuffer;
@@ -98,11 +97,7 @@
                         public void onResult(DataItemBuffer result) {
                             try {
                                 if (result.getStatus().isSuccess()) {
-                                    // Store the DataItem URIs in a List and release the buffer.
-                                    // Then use these URIs to delete the DataItems.
-                                    List<DataItem> dataItemList = FreezableUtils
-                                            .freezeIterable(result);
-                                    deleteDataItems(dataItemList);
+                                    deleteDataItems(result);
                                 } else {
                                     if (Log.isLoggable(TAG, Log.DEBUG)) {
                                         Log.d(TAG,"onDeleteEventsClicked(): failed to get Data "
@@ -121,7 +116,7 @@
         }
     }
 
-    private void deleteDataItems(final List<DataItem> dataItemList) {
+    private void deleteDataItems(final DataItemBuffer dataItemList) {
         if (mGoogleApiClient.isConnected()) {
             for (final DataItem dataItem : dataItemList) {
                 final Uri dataItemUri = dataItem.getUri();
diff --git a/prebuilts/gradle/AgendaData/NOTICE b/prebuilts/gradle/AgendaData/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/AgendaData/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/AgendaData/Wearable/build.gradle b/prebuilts/gradle/AgendaData/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/AgendaData/Wearable/build.gradle
+++ b/prebuilts/gradle/AgendaData/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/AgendaData/Wearable/src/main/java/com/example/android/wearable/agendadata/HomeListenerService.java b/prebuilts/gradle/AgendaData/Wearable/src/main/java/com/example/android/wearable/agendadata/HomeListenerService.java
index ef47977..0cbda71 100644
--- a/prebuilts/gradle/AgendaData/Wearable/src/main/java/com/example/android/wearable/agendadata/HomeListenerService.java
+++ b/prebuilts/gradle/AgendaData/Wearable/src/main/java/com/example/android/wearable/agendadata/HomeListenerService.java
@@ -75,7 +75,6 @@
                 UpdateNotificationForDataItem(event.getDataItem());
             }
         }
-        dataEvents.close();
     }
 
     @Override
diff --git a/prebuilts/gradle/AlwaysOn/Wearable/build.gradle b/prebuilts/gradle/AlwaysOn/Wearable/build.gradle
index eb9b0e7..712537f 100644
--- a/prebuilts/gradle/AlwaysOn/Wearable/build.gradle
+++ b/prebuilts/gradle/AlwaysOn/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/build.gradle b/prebuilts/gradle/AppRestrictionEnforcer/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/AppRestrictionEnforcer/Application/build.gradle
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/NOTICE b/prebuilts/gradle/AppRestrictionEnforcer/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/AppRestrictionEnforcer/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/AppRestrictionSchema/Application/build.gradle b/prebuilts/gradle/AppRestrictionSchema/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/AppRestrictionSchema/Application/build.gradle
+++ b/prebuilts/gradle/AppRestrictionSchema/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/AppRestrictionSchema/NOTICE b/prebuilts/gradle/AppRestrictionSchema/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/AppRestrictionSchema/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/AppRestrictions/Application/build.gradle b/prebuilts/gradle/AppRestrictions/Application/build.gradle
index 3a94103..054db59 100644
--- a/prebuilts/gradle/AppRestrictions/Application/build.gradle
+++ b/prebuilts/gradle/AppRestrictions/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/AppRestrictions/NOTICE b/prebuilts/gradle/AppRestrictions/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/AppRestrictions/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/build.gradle b/prebuilts/gradle/AppUsageStatistics/Application/build.gradle
index d2e188d..8c5491d 100644
--- a/prebuilts/gradle/AppUsageStatistics/Application/build.gradle
+++ b/prebuilts/gradle/AppUsageStatistics/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/AppUsageStatistics/NOTICE b/prebuilts/gradle/AppUsageStatistics/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/AppUsageStatistics/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/AutoBackupForApps/.google/packaging.yaml b/prebuilts/gradle/AutoBackupForApps/.google/packaging.yaml
new file mode 100644
index 0000000..93db82c
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/.google/packaging.yaml
@@ -0,0 +1,17 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       PUBLISEHD
+technologies: [Android]
+categories:   [Content]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-Automatic Backup
+level:        INTERMEDIATE
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.app.Backup
+license: apache2
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/build.gradle b/prebuilts/gradle/AutoBackupForApps/Application/build.gradle
new file mode 100644
index 0000000..96fc041
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/build.gradle
@@ -0,0 +1,73 @@
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.2.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+dependencies {
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion "android-MNC"
+    buildToolsVersion "22.0.1"
+
+    defaultConfig {
+        minSdkVersion "MNC"
+        targetSdkVersion "android-MNC"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..7dad1e0
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.autobackupsample" >
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme"
+        android:fullBackupContent="@xml/backup">
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".AddFileActivity" />
+    </application>
+
+</manifest>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/AddFileActivity.java b/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/AddFileActivity.java
new file mode 100644
index 0000000..00cd1e3
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/AddFileActivity.java
@@ -0,0 +1,337 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.autobackupsample;
+
+import android.app.Activity;
+import android.content.Context;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.Gravity;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.EditText;
+import android.widget.Spinner;
+import android.widget.Toast;
+
+import com.example.android.autobackupsample.MainActivityFragment;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+
+/**
+ * The purpose of AddFileActivity activity is to create a data file based on the
+ * file name and size parameters specified as an Intent external parameters or with the
+ * activity UI.
+ * <p/>
+ * The optional intent parameters are
+ * {@link com.example.android.autobackupsample.AddFileActivity#FILE_NAME} and
+ * {@link com.example.android.autobackupsample.AddFileActivity#FILE_SIZE_IN_BYTES}.
+ * {@link com.example.android.autobackupsample.AddFileActivity#FILE_STORAGE}.
+ * <p/>
+ * The activity will return an
+ * {@link com.example.android.autobackupsample.MainActivityFragment#ADD_FILE_RESULT_ERROR}
+ * if intent parameters are specified incorrectly or it will display Toast messages to the user
+ * if those parameters are specified via the activity UI.
+ */
+public class AddFileActivity extends Activity {
+
+    private static final String TAG = "AutoBackupSample";
+
+    /**
+     * The intent parameter that specifies a file name. The file name must be unique for the
+     * application internal directory.
+     */
+    public static final String FILE_NAME = "file_name";
+
+    /**
+     * The intent parameter that specifies a file size in bytes. The size must be a number
+     * larger or equal to 0.
+     */
+    public static final String FILE_SIZE_IN_BYTES = "file_size_in_bytes";
+
+    /**
+     * The file storage is an optional parameter. It should be one of these:
+     * "INTERNAL", "EXTERNAL", "DONOTBACKUP". The default option is "INTERNAL".
+     */
+    public static final String FILE_STORAGE = "file_storage";
+
+    /**
+     * A file size multiplier. It is used to calculate the total number of bytes to be added
+     * to the file.
+     */
+    private int mSizeMultiplier = 1;
+
+    /**
+     * Defines File Storage options.
+     */
+    private static enum FileStorage {
+        INTERNAL,
+        EXTERNAL,
+        DONOTBACKUP;
+    }
+
+    /**
+     * Contains a selected by a user file storage option.
+     */
+    private FileStorage mFileStorage = FileStorage.INTERNAL;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.add_file);
+        initFileSizeSpinner();
+        initFileStorageSpinner();
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // If an intent has extra parameters, create the file and finish the activity.
+        if (getIntent().hasExtra(FILE_NAME) && getIntent().hasExtra(FILE_SIZE_IN_BYTES)) {
+            String fileName = getIntent().getStringExtra(FILE_NAME);
+            String sizeInBytesParamValue = getIntent().getStringExtra(FILE_SIZE_IN_BYTES);
+            String fileStorageParamValue = FileStorage.INTERNAL.toString();
+
+            if (getIntent().hasExtra(FILE_STORAGE)) {
+                fileStorageParamValue = getIntent().getStringExtra(FILE_STORAGE);
+            }
+
+            if (TextUtils.isEmpty(fileName) ||
+                    isFileExists(fileName) ||
+                    !isSizeValid(sizeInBytesParamValue) ||
+                    !isFileStorageParamValid(fileStorageParamValue)) {
+                setResult(MainActivityFragment.ADD_FILE_RESULT_ERROR);
+                finish();
+                return;
+            }
+
+            mFileStorage = FileStorage.valueOf(fileStorageParamValue);
+
+            if (mFileStorage == FileStorage.EXTERNAL && !Utils.isExternalStorageAvailable()) {
+                setResult(MainActivityFragment.ADD_FILE_RESULT_ERROR);
+                finish();
+                return;
+            }
+
+            createFileWithRandomDataAndFinishActivity(fileName, mFileStorage,
+                    sizeInBytesParamValue);
+        }
+    }
+
+    /**
+     * A handler function for a Create File button click event.
+     *
+     * @param view a reference to the Create File button view.
+     */
+    public void onCreateFileButtonClick(View view) {
+        EditText fileNameEditText = (EditText) findViewById(R.id.file_name);
+        EditText fileSizeEditText = (EditText) findViewById(R.id.file_size);
+        String fileName = fileNameEditText.getText().toString();
+        String fileSizeEditTextValue = fileSizeEditText.getText().toString();
+
+        if (TextUtils.isEmpty(fileName) || isFileExists(fileName)) {
+            Toast toast = Toast.makeText(this, getText(R.string.file_exists), Toast.LENGTH_LONG);
+            toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
+            toast.show();
+            return;
+        }
+
+        if (!isSizeValid(fileSizeEditTextValue)) {
+            Toast toast = Toast.makeText(this, getText(R.string.file_size_is_invalid),
+                    Toast.LENGTH_LONG);
+            toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
+            toast.show();
+            return;
+        }
+
+        long fileSize = Integer.valueOf(fileSizeEditTextValue) * mSizeMultiplier;
+
+        if (mFileStorage == FileStorage.EXTERNAL && !Utils.isExternalStorageAvailable()) {
+            Toast toast = Toast.makeText(this,
+                    getText(R.string.external_storage_unavailable), Toast.LENGTH_LONG);
+            toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
+            toast.show();
+            return;
+        }
+
+        createFileWithRandomDataAndFinishActivity(fileName, mFileStorage, String.valueOf(fileSize));
+    }
+
+    private void initFileSizeSpinner() {
+        Spinner spinner = (Spinner) findViewById(R.id.file_size_spinner);
+        final ArrayAdapter<CharSequence> adapter =
+                ArrayAdapter.createFromResource(this, R.array.file_size_array,
+                        android.R.layout.simple_spinner_item);
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        spinner.setAdapter(adapter);
+        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                String sizeMeasure = adapter.getItem(position).toString();
+                mSizeMultiplier = (int) Math.pow(1024, position);
+                if (Log.isLoggable(TAG, Log.DEBUG)) {
+                    Log.d(TAG, String.format("Selected: %s, %d", sizeMeasure,
+                            mSizeMultiplier));
+                }
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+
+            }
+        });
+    }
+
+    private void initFileStorageSpinner() {
+        Spinner spinner = (Spinner) findViewById(R.id.storage_spinner);
+        final ArrayAdapter<CharSequence> adapter =
+                ArrayAdapter.createFromResource(this, R.array.file_storage_array,
+                        android.R.layout.simple_spinner_item);
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        spinner.setAdapter(adapter);
+        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                mFileStorage = FileStorage.values()[position];
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+
+            }
+        });
+    }
+
+    private void createFileWithRandomDataAndFinishActivity(String fileName, FileStorage storage,
+                                                           String sizeInBytes) {
+        long size = Long.valueOf(sizeInBytes);
+        File file = null;
+        FileOutputStream out = null;
+        BufferedOutputStream bufOut = null;
+        try {
+            switch (storage) {
+                case INTERNAL:
+                    file = getInternalFile(fileName);
+                    out = openFileOutput(file.getName(), Context.MODE_PRIVATE);
+                    break;
+                case EXTERNAL:
+                    assert Utils.isExternalStorageAvailable() :
+                            "The external storage is not available";
+                    File externalAppDir = getExternalFilesDir(null);
+                    file = new File(externalAppDir, fileName);
+                    out = new FileOutputStream(file);
+                    break;
+                case DONOTBACKUP:
+                    file = new File(getNoBackupFilesDir(), fileName);
+                    out = new FileOutputStream(file);
+                    break;
+            }
+
+            if (file == null || out == null) {
+                Log.d(TAG, "Unable to create file output stream");
+                // Returning back to the caller activity.
+                setResult(MainActivityFragment.ADD_FILE_RESULT_ERROR);
+                finish();
+                return;
+            }
+
+            bufOut = new BufferedOutputStream(out);
+            for (int i = 0; i < size; i++) {
+                byte b = (byte) (255 * Math.random());
+                bufOut.write(b);
+            }
+
+            String message = String.format("File created: %s, size: %s bytes",
+                    file.getAbsolutePath(), sizeInBytes);
+
+            Toast toast = Toast.makeText(this, message, Toast.LENGTH_LONG);
+            toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
+            toast.show();
+            Log.d(TAG, message);
+
+            // Returning back to the caller activity.
+            setResult(MainActivityFragment.ADD_FILE_RESULT_SUCCESS);
+            finish();
+        } catch (Exception e) {
+            Log.e(TAG, e.getMessage(), e);
+            // Returning back to the caller activity.
+            setResult(MainActivityFragment.ADD_FILE_RESULT_ERROR);
+            finish();
+        } finally {
+            if (bufOut != null) {
+                try {
+                    bufOut.close();
+                } catch (Exception e) {
+                    // Ignore.
+                }
+            }
+        }
+    }
+
+    private boolean isFileExists(String fileName) {
+        File file = getInternalFile(fileName);
+        if (file.exists()) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "This file exists: " + file.getName());
+            }
+            return true;
+        }
+        return false;
+    }
+
+    private boolean isSizeValid(String sizeInBytesParamValue) {
+        long sizeInBytes = 0;
+        try {
+            sizeInBytes = Long.valueOf(sizeInBytesParamValue);
+        } catch (NumberFormatException e) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "Invalid file size: " + sizeInBytesParamValue);
+            }
+            return false;
+        }
+
+        // Validate file size value. It should be 0 or a positive number.
+        if (sizeInBytes < 0) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "Invalid file size: " + sizeInBytes);
+            }
+            return false;
+        }
+        return true;
+    }
+
+    private boolean isFileStorageParamValid(String fileStorage) {
+        try {
+            mFileStorage = FileStorage.valueOf(fileStorage);
+        } catch (IllegalArgumentException e) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "Invalid file storage: " + fileStorage);
+            }
+            return false;
+        }
+        return true;
+    }
+
+    private File getInternalFile(String fileName) {
+        File internalAppDir = getFilesDir();
+        return new File(internalAppDir, fileName);
+    }
+
+}
\ No newline at end of file
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/MainActivity.java b/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/MainActivity.java
new file mode 100644
index 0000000..b5af289
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/MainActivity.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.autobackupsample;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+
+
+public class MainActivity extends Activity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+}
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/MainActivityFragment.java b/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/MainActivityFragment.java
new file mode 100644
index 0000000..c07f6b8
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/MainActivityFragment.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.autobackupsample;
+
+import android.app.Fragment;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Environment;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import java.io.File;
+import java.text.NumberFormat;
+import java.util.ArrayList;
+
+
+/**
+ * A placeholder fragment containing a simple view.
+ */
+public class MainActivityFragment extends Fragment {
+
+    private static final String TAG = "AutoBackupSample";
+    public static final int ADD_FILE_REQUEST = 1;
+    public static final int ADD_FILE_RESULT_SUCCESS = 101;
+    public static final int ADD_FILE_RESULT_ERROR = 102;
+
+    private ArrayAdapter<File> mFilesArrayAdapter;
+    private ArrayList<File> mFiles;
+
+    public MainActivityFragment() {
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        setHasOptionsMenu(true);
+        return inflater.inflate(R.layout.fragment_main, container, false);
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (requestCode == ADD_FILE_REQUEST && resultCode == ADD_FILE_RESULT_SUCCESS) {
+            updateListOfFiles();
+        }
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        inflater.inflate(R.menu.menu_main, menu);
+        super.onCreateOptionsMenu(menu, inflater);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        int id = item.getItemId();
+
+        //noinspection SimplifiableIfStatement
+        if (id == R.id.action_settings) {
+            return true;
+        } else if (id == R.id.action_add_file) {
+            Intent addFileIntent = new Intent(getActivity(), AddFileActivity.class);
+            startActivityForResult(addFileIntent, ADD_FILE_REQUEST);
+            return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (mFilesArrayAdapter == null) {
+            mFiles = createListOfFiles();
+            mFilesArrayAdapter = new ArrayAdapter<File>(getActivity(),
+                    R.layout.file_list_item, mFiles) {
+
+                @Override
+                public View getView(int position, View convertView, ViewGroup parent) {
+                    LayoutInflater inflater = LayoutInflater.from(getContext());
+                    View itemView = inflater.inflate(R.layout.file_list_item, parent, false);
+                    TextView fileNameView = (TextView) itemView.findViewById(R.id.file_name);
+                    String fileName = getItem(position).getAbsolutePath();
+                    fileNameView.setText(fileName);
+                    TextView fileSize = (TextView) itemView.findViewById(R.id.file_size);
+                    String fileSizeInBytes = NumberFormat.getInstance()
+                            .format(getItem(position).length());
+                    fileSize.setText(fileSizeInBytes);
+                    return itemView;
+                }
+            };
+            updateListOfFiles();
+            ListView filesListView = (ListView) getView().findViewById(R.id.file_list);
+            filesListView.setAdapter(mFilesArrayAdapter);
+        }
+    }
+
+    private ArrayList<File> createListOfFiles() {
+        ArrayList<File> listOfFiles = new ArrayList<File>();
+        addFilesToList(listOfFiles, getActivity().getFilesDir());
+        if (Utils.isExternalStorageAvailable()) {
+            addFilesToList(listOfFiles, getActivity().getExternalFilesDir(null));
+        }
+        addFilesToList(listOfFiles, getActivity().getNoBackupFilesDir());
+        return listOfFiles;
+    }
+
+    private void addFilesToList(ArrayList<File> listOfFiles, File dir) {
+        File[] files = dir.listFiles();
+        for (File file: files) {
+            listOfFiles.add(file);
+        }
+    }
+
+    public void updateListOfFiles() {
+        TextView emptyFileListMessage =
+                (TextView) getView().findViewById(R.id.empty_file_list_message);
+        mFiles = createListOfFiles();
+        if (mFilesArrayAdapter.getCount() > 0) {
+            mFilesArrayAdapter.clear();
+        }
+        for (File file: mFiles) {
+            mFilesArrayAdapter.add(file);
+        }
+        // Display a message instructing to add files if no files found.
+        if (mFiles.size() == 0) {
+            emptyFileListMessage.setVisibility(View.VISIBLE);
+        } else {
+            emptyFileListMessage.setVisibility(View.GONE);
+        }
+    }
+}
+
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/Utils.java b/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/Utils.java
new file mode 100644
index 0000000..b9a9833
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/java/com/example/android/autobackupsample/Utils.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.autobackupsample;
+
+import android.os.Environment;
+import android.util.Log;
+
+/**
+ * Utility methods for the app.
+ */
+public class Utils {
+
+    private static final String TAG = "AutoBackupSample";
+
+    public static boolean isExternalStorageAvailable() {
+        String state = Environment.getExternalStorageState();
+        if (!Environment.MEDIA_MOUNTED.equals(state)) {
+            Log.d(TAG, "The external storage is not available.");
+            return false;
+        }
+        return true;
+    }
+}
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..4a7879d
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<fragment xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools" android:id="@+id/fragment"
+    android:name="com.example.android.autobackupsample.MainActivityFragment"
+    tools:layout="@layout/fragment_main" android:layout_width="match_parent"
+    android:layout_height="match_parent" />
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/add_file.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/add_file.xml
new file mode 100644
index 0000000..9249bf4
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/add_file.xml
@@ -0,0 +1,112 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center_horizontal">
+
+    <RelativeLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="40dp">
+
+        <!-- File -->
+        <TextView
+            android:id="@+id/file_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="File"
+            android:textAlignment="center"
+            android:textSize="16sp"
+            android:textStyle="bold"
+            android:layout_marginRight="20dp"
+            android:layout_alignBaseline="@+id/file_name"/>
+
+        <EditText
+            android:id="@+id/file_name"
+            android:layout_width="300sp"
+            android:layout_height="wrap_content"
+            android:layout_toRightOf="@+id/file_label"
+            android:layout_marginBottom="20dp"
+            android:inputType="text"
+            android:text="foo.txt" />
+
+        <!-- Size -->
+        <TextView
+            android:id="@+id/size_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/file_name"
+            android:layout_alignBaseline="@+id/file_size"
+            android:text="Size"
+            android:textSize="16sp"
+            android:textStyle="bold" />
+
+        <EditText
+            android:id="@+id/file_size"
+            android:layout_width="100dp"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/file_name"
+            android:layout_alignStart="@+id/file_name"
+            android:layout_marginBottom="20dp"
+            android:inputType="numberDecimal"
+            android:text="10" />
+
+        <Spinner
+            android:id="@+id/file_size_spinner"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/file_name"
+            android:layout_toRightOf="@+id/file_size"
+            android:layout_alignEnd="@+id/file_name"
+            android:layout_marginBottom="20dp"
+            />
+
+        <!-- Storage -->
+        <TextView
+            android:id="@+id/storage_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/file_size_spinner"
+            android:layout_alignBaseline="@+id/storage_spinner"
+            android:paddingRight="20dp"
+            android:text="Storage"
+            android:textAlignment="center"
+            android:textSize="16sp"
+            android:textStyle="bold" />
+
+        <Spinner
+            android:id="@+id/storage_spinner"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/file_size_spinner"
+            android:layout_toRightOf="@+id/file_size"
+            android:layout_alignEnd="@+id/file_name"/>
+
+        <Button
+            android:id="@+id/create_file_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/storage_spinner"
+            android:layout_centerInParent="true"
+            android:layout_marginTop="40dp"
+            android:paddingLeft="20dp"
+            android:paddingRight="20dp"
+            android:onClick="onCreateFileButtonClick"
+            android:text="Create" />
+
+    </RelativeLayout>
+</LinearLayout>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/file_list_item.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/file_list_item.xml
new file mode 100644
index 0000000..e2d1866
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/file_list_item.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="20px"
+    android:orientation="horizontal">
+
+    <TextView android:id="@+id/file_name"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_weight="3"/>
+
+    <TextView android:id="@+id/file_size"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"/>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/fragment_main.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/fragment_main.xml
new file mode 100644
index 0000000..35ba962
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/layout/fragment_main.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
+    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:orientation="vertical"
+    tools:context=".MainActivity$PlaceholderFragment">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="20sp"
+        android:background="@android:color/darker_gray">
+
+        <TextView
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="3"
+            android:textStyle="bold"
+            android:text="File name" />
+        <TextView
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:textStyle="bold"
+            android:text="Size (bytes)" />
+
+    </LinearLayout>
+
+
+    <ListView android:id="@+id/file_list"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+    <TextView android:id="@+id/empty_file_list_message"
+        android:text="@string/no_files_click_add_files_menu"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="gone" />
+
+</LinearLayout>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/menu/menu_main.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/menu/menu_main.xml
new file mode 100644
index 0000000..ebb08b6
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/menu/menu_main.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
+    <item android:id="@+id/action_add_file" android:title="@string/action_add_file"
+        android:orderInCategory="100" android:showAsAction="ifRoom" />
+    <item android:id="@+id/action_settings" android:title="@string/action_settings"
+        android:orderInCategory="100" android:showAsAction="never" />
+</menu>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100755
index 0000000..91153b2
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100755
index 0000000..9a44bc4
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100755
index 0000000..0e1fb39
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100755
index 0000000..e8ae88d
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100755
index 0000000..497fde1
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-w820dp/dimens.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-w820dp/dimens.xml
new file mode 100644
index 0000000..82d3fbe
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values-w820dp/dimens.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..a6cef5e
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">Automatic Backup</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+This sample demonstrates how to selectively disable Automatic Backups in Android M, either by
+adjusting the location where data files are stored using getNoBackupFilesDir(), or by using a custom
+XML configuration file.
+
+This sample can also be used as a utility to test the behavior of the Automatic Backup feature.
+Executing "adb shell bmgr restore com.example.android.autobackup" from a terminal will cause the
+sample\'s data to be cleared and replaced with a copy from the backup server.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/dimens.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..7d5dcce
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/dimens.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/strings.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..30512e8
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/strings.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+    <string name="action_add_file">Add File</string>
+    <string name="action_settings">Settings</string>
+    <string name="list_of_files">App Data:</string>
+    <string name="file_exists">Please specify a different name. A file with this name exists already.</string>
+    <string name="no_files_click_add_files_menu">Please click on Add File menu in order to create test files.</string>
+    <string name="file_size_is_invalid">Please specify a correct file size.</string>
+    <string name="external_storage_unavailable">The External storage is not available.</string>
+    <string-array name="file_size_array">
+        <item>Bytes</item>
+        <item>Kilobytes</item>
+        <item>Megabytes</item>
+    </string-array>
+    <string-array name="file_storage_array">
+        <item>Internal</item>
+        <item>External</item>
+        <item>Do not Backup</item>
+    </string-array>
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/xml/backup.xml b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/xml/backup.xml
new file mode 100644
index 0000000..334cfa2
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/Application/src/main/res/xml/backup.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<full-backup-content xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- This file is referenced from android:fullBackupContent in AndroidManifest.xml, and controls
+         exclusions/inclusions for the default backup policy. -->
+
+    <!-- Shared preferences files can be excluded using the "sharedpref" domain. -->
+    <!-- Be sure to exclude any device-specific identifiers, such as the GCM registration key. -->
+    <!-- You may also wish to exclude directories that contain device-specific session tokens or
+         sensitive user credentials. -->
+    <exclude domain="sharedpref" path="gcm"/>
+    <exclude domain="sharedpref" path="user_credentials"/>
+
+    <!-- Databases can be excluded using the "database" domain. -->
+    <exclude domain="database" path="local_secrets.db"/>
+
+    <!-- Additional domains include "file", "external", "root", and "path". See
+         http://developer.android.com/preview/backup/index.html for more details.
+
+         Additionally, content in the cache directory, external storage, and the no_backup directory
+         (see android.content.Context#getNoBackupFilesDir()) are excluded by default. If you need
+         to backup data in one of these locations, use the <include> directive. -->
+
+</full-backup-content>
\ No newline at end of file
diff --git a/prebuilts/gradle/AutoBackupForApps/CONTRIBUTING.md b/prebuilts/gradle/AutoBackupForApps/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/AutoBackupForApps/LICENSE b/prebuilts/gradle/AutoBackupForApps/LICENSE
new file mode 100644
index 0000000..4f22946
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/LICENSE
@@ -0,0 +1,647 @@
+Apache License
+--------------
+
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+                        http://www.apache.org/licenses/
+
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diff --git a/prebuilts/gradle/AutoBackupForApps/README.md b/prebuilts/gradle/AutoBackupForApps/README.md
new file mode 100644
index 0000000..a3659ae
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/README.md
@@ -0,0 +1,74 @@
+
+Android Automatic Backup Sample
+===================================
+
+Sample demonstrating how to selectively disable Automatic
+          Backups in Android M, either by adjusting the location where data
+          files are stored or by using a custom XML configuration file.
+
+Introduction
+------------
+
+This sample demonstrates how to selectively disable Automatic Backups in Android M, either by
+adjusting the location where data files are stored using [getNoBackupFilesDir()][1], or by using a
+custom XML configuration file.
+
+This sample can also be used as a utility to test the behavior of the Automatic Backup feature.
+Executing:
+
+    adb shell bmgr restorecom.example.android.autobackup
+
+from a terminal will cause the sample's data to be cleared and replaced with a copy from the backup
+server.
+
+[1]: http://developers.google.com/reference/android/content/Context.html#getNoBackupFilesDir()
+
+Pre-requisites
+--------------
+
+- Android SDK vandroid-MNC
+- Android Build Tools v22.0.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/1-main.png" height="400" alt="Screenshot"/> <img src="screenshots/2-settings.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-Automatic Backup
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/AutoBackupForApps/build.gradle b/prebuilts/gradle/AutoBackupForApps/build.gradle
new file mode 100644
index 0000000..1901ba9
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/build.gradle
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/AutoBackupForApps/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/AutoBackupForApps/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/AutoBackupForApps/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..afb3296
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-2.2.1-bin.zip
diff --git a/prebuilts/gradle/AutoBackupForApps/gradlew b/prebuilts/gradle/AutoBackupForApps/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/AutoBackupForApps/gradlew.bat b/prebuilts/gradle/AutoBackupForApps/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/AutoBackupForApps/screenshots/ic_launcher.png b/prebuilts/gradle/AutoBackupForApps/screenshots/ic_launcher.png
new file mode 100644
index 0000000..b52b886
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/screenshots/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/screenshots/main.png b/prebuilts/gradle/AutoBackupForApps/screenshots/main.png
new file mode 100644
index 0000000..aff2276
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/screenshots/main.png
Binary files differ
diff --git a/prebuilts/gradle/AutoBackupForApps/settings.gradle b/prebuilts/gradle/AutoBackupForApps/settings.gradle
new file mode 100644
index 0000000..0a5c310
--- /dev/null
+++ b/prebuilts/gradle/AutoBackupForApps/settings.gradle
@@ -0,0 +1,2 @@
+
+include 'Application'
diff --git a/prebuilts/gradle/BasicAccessibility/Application/build.gradle b/prebuilts/gradle/BasicAccessibility/Application/build.gradle
index 168569b..36a255f 100644
--- a/prebuilts/gradle/BasicAccessibility/Application/build.gradle
+++ b/prebuilts/gradle/BasicAccessibility/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicAccessibility/NOTICE b/prebuilts/gradle/BasicAccessibility/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicAccessibility/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicAndroidKeyStore/Application/build.gradle b/prebuilts/gradle/BasicAndroidKeyStore/Application/build.gradle
index 3a94103..054db59 100644
--- a/prebuilts/gradle/BasicAndroidKeyStore/Application/build.gradle
+++ b/prebuilts/gradle/BasicAndroidKeyStore/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicAndroidKeyStore/NOTICE b/prebuilts/gradle/BasicAndroidKeyStore/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicAndroidKeyStore/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicContactables/Application/build.gradle b/prebuilts/gradle/BasicContactables/Application/build.gradle
index 3a94103..054db59 100644
--- a/prebuilts/gradle/BasicContactables/Application/build.gradle
+++ b/prebuilts/gradle/BasicContactables/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicContactables/NOTICE b/prebuilts/gradle/BasicContactables/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicContactables/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicGestureDetect/Application/build.gradle b/prebuilts/gradle/BasicGestureDetect/Application/build.gradle
index 3a94103..054db59 100644
--- a/prebuilts/gradle/BasicGestureDetect/Application/build.gradle
+++ b/prebuilts/gradle/BasicGestureDetect/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicGestureDetect/NOTICE b/prebuilts/gradle/BasicGestureDetect/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicGestureDetect/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicImmersiveMode/Application/build.gradle b/prebuilts/gradle/BasicImmersiveMode/Application/build.gradle
index cedf6c9..db9a58b 100644
--- a/prebuilts/gradle/BasicImmersiveMode/Application/build.gradle
+++ b/prebuilts/gradle/BasicImmersiveMode/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicImmersiveMode/NOTICE b/prebuilts/gradle/BasicImmersiveMode/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicImmersiveMode/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicManagedProfile/Application/build.gradle b/prebuilts/gradle/BasicManagedProfile/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/BasicManagedProfile/Application/build.gradle
+++ b/prebuilts/gradle/BasicManagedProfile/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicManagedProfile/NOTICE b/prebuilts/gradle/BasicManagedProfile/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicManagedProfile/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicMediaDecoder/Application/build.gradle b/prebuilts/gradle/BasicMediaDecoder/Application/build.gradle
index 17258b7..2ffcd57 100644
--- a/prebuilts/gradle/BasicMediaDecoder/Application/build.gradle
+++ b/prebuilts/gradle/BasicMediaDecoder/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicMediaDecoder/NOTICE b/prebuilts/gradle/BasicMediaDecoder/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicMediaDecoder/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicMediaRouter/Application/build.gradle b/prebuilts/gradle/BasicMediaRouter/Application/build.gradle
index 17258b7..2ffcd57 100644
--- a/prebuilts/gradle/BasicMediaRouter/Application/build.gradle
+++ b/prebuilts/gradle/BasicMediaRouter/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicMediaRouter/NOTICE b/prebuilts/gradle/BasicMediaRouter/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicMediaRouter/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicMultitouch/Application/build.gradle b/prebuilts/gradle/BasicMultitouch/Application/build.gradle
index 211c607..d7467d8 100644
--- a/prebuilts/gradle/BasicMultitouch/Application/build.gradle
+++ b/prebuilts/gradle/BasicMultitouch/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicMultitouch/NOTICE b/prebuilts/gradle/BasicMultitouch/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicMultitouch/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicNetworking/Application/build.gradle b/prebuilts/gradle/BasicNetworking/Application/build.gradle
index eb1a23c..672e647 100644
--- a/prebuilts/gradle/BasicNetworking/Application/build.gradle
+++ b/prebuilts/gradle/BasicNetworking/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicNetworking/NOTICE b/prebuilts/gradle/BasicNetworking/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicNetworking/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicNotifications/Application/build.gradle b/prebuilts/gradle/BasicNotifications/Application/build.gradle
index 211c607..d7467d8 100644
--- a/prebuilts/gradle/BasicNotifications/Application/build.gradle
+++ b/prebuilts/gradle/BasicNotifications/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicNotifications/NOTICE b/prebuilts/gradle/BasicNotifications/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicNotifications/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicRenderScript/Application/build.gradle b/prebuilts/gradle/BasicRenderScript/Application/build.gradle
index bc04e43..88f626a 100644
--- a/prebuilts/gradle/BasicRenderScript/Application/build.gradle
+++ b/prebuilts/gradle/BasicRenderScript/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicRenderScript/NOTICE b/prebuilts/gradle/BasicRenderScript/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicRenderScript/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicSyncAdapter/Application/build.gradle b/prebuilts/gradle/BasicSyncAdapter/Application/build.gradle
index d57f289..e42b20a 100644
--- a/prebuilts/gradle/BasicSyncAdapter/Application/build.gradle
+++ b/prebuilts/gradle/BasicSyncAdapter/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicSyncAdapter/NOTICE b/prebuilts/gradle/BasicSyncAdapter/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicSyncAdapter/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BasicTransition/Application/build.gradle b/prebuilts/gradle/BasicTransition/Application/build.gradle
index cedf6c9..db9a58b 100644
--- a/prebuilts/gradle/BasicTransition/Application/build.gradle
+++ b/prebuilts/gradle/BasicTransition/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BasicTransition/NOTICE b/prebuilts/gradle/BasicTransition/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BasicTransition/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BatchStepSensor/Application/build.gradle b/prebuilts/gradle/BatchStepSensor/Application/build.gradle
index cedf6c9..db9a58b 100644
--- a/prebuilts/gradle/BatchStepSensor/Application/build.gradle
+++ b/prebuilts/gradle/BatchStepSensor/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BatchStepSensor/NOTICE b/prebuilts/gradle/BatchStepSensor/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BatchStepSensor/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BeamLargeFiles/Application/build.gradle b/prebuilts/gradle/BeamLargeFiles/Application/build.gradle
index c6cf83d..c45e507 100644
--- a/prebuilts/gradle/BeamLargeFiles/Application/build.gradle
+++ b/prebuilts/gradle/BeamLargeFiles/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BeamLargeFiles/NOTICE b/prebuilts/gradle/BeamLargeFiles/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BeamLargeFiles/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BluetoothAdvertisements/Application/build.gradle b/prebuilts/gradle/BluetoothAdvertisements/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/BluetoothAdvertisements/Application/build.gradle
+++ b/prebuilts/gradle/BluetoothAdvertisements/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BluetoothAdvertisements/NOTICE b/prebuilts/gradle/BluetoothAdvertisements/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BluetoothAdvertisements/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BluetoothChat/Application/build.gradle b/prebuilts/gradle/BluetoothChat/Application/build.gradle
index 168569b..36a255f 100644
--- a/prebuilts/gradle/BluetoothChat/Application/build.gradle
+++ b/prebuilts/gradle/BluetoothChat/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BluetoothChat/NOTICE b/prebuilts/gradle/BluetoothChat/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BluetoothChat/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BluetoothLeGatt/Application/build.gradle b/prebuilts/gradle/BluetoothLeGatt/Application/build.gradle
index 3a94103..054db59 100644
--- a/prebuilts/gradle/BluetoothLeGatt/Application/build.gradle
+++ b/prebuilts/gradle/BluetoothLeGatt/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BluetoothLeGatt/NOTICE b/prebuilts/gradle/BluetoothLeGatt/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BluetoothLeGatt/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/BorderlessButtons/Application/build.gradle b/prebuilts/gradle/BorderlessButtons/Application/build.gradle
index 9f7c8dc..c9fe712 100644
--- a/prebuilts/gradle/BorderlessButtons/Application/build.gradle
+++ b/prebuilts/gradle/BorderlessButtons/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/BorderlessButtons/NOTICE b/prebuilts/gradle/BorderlessButtons/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/BorderlessButtons/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Camera2Basic/Application/build.gradle b/prebuilts/gradle/Camera2Basic/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/Camera2Basic/Application/build.gradle
+++ b/prebuilts/gradle/Camera2Basic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Camera2Basic/NOTICE b/prebuilts/gradle/Camera2Basic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/Camera2Basic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Camera2Raw/Application/build.gradle b/prebuilts/gradle/Camera2Raw/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/Camera2Raw/Application/build.gradle
+++ b/prebuilts/gradle/Camera2Raw/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Camera2Raw/NOTICE b/prebuilts/gradle/Camera2Raw/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/Camera2Raw/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Camera2Video/Application/build.gradle b/prebuilts/gradle/Camera2Video/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/Camera2Video/Application/build.gradle
+++ b/prebuilts/gradle/Camera2Video/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Camera2Video/NOTICE b/prebuilts/gradle/Camera2Video/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/Camera2Video/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/CardEmulation/Application/build.gradle b/prebuilts/gradle/CardEmulation/Application/build.gradle
index cedf6c9..db9a58b 100644
--- a/prebuilts/gradle/CardEmulation/Application/build.gradle
+++ b/prebuilts/gradle/CardEmulation/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/CardEmulation/NOTICE b/prebuilts/gradle/CardEmulation/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/CardEmulation/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/CardReader/Application/build.gradle b/prebuilts/gradle/CardReader/Application/build.gradle
index cedf6c9..db9a58b 100644
--- a/prebuilts/gradle/CardReader/Application/build.gradle
+++ b/prebuilts/gradle/CardReader/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/CardReader/NOTICE b/prebuilts/gradle/CardReader/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/CardReader/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/CardView/Application/build.gradle b/prebuilts/gradle/CardView/Application/build.gradle
index 0f94e18..738f5cf 100644
--- a/prebuilts/gradle/CardView/Application/build.gradle
+++ b/prebuilts/gradle/CardView/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/CardView/NOTICE b/prebuilts/gradle/CardView/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/CardView/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ClippingBasic/Application/build.gradle b/prebuilts/gradle/ClippingBasic/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/ClippingBasic/Application/build.gradle
+++ b/prebuilts/gradle/ClippingBasic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ClippingBasic/NOTICE b/prebuilts/gradle/ClippingBasic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ClippingBasic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ConfirmCredential/.google/packaging.yaml b/prebuilts/gradle/ConfirmCredential/.google/packaging.yaml
new file mode 100644
index 0000000..a3e0239
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/.google/packaging.yaml
@@ -0,0 +1,21 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFT
+technologies: [Android]
+categories:   [Security]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-Confirm Credential
+level:        INTERMEDIATE
+icon:         screenshots/big-icon.png
+apiRefs:
+    - android:android.app.KeyguardManager.createConfirmDeviceCredentialIntent
+    - android:android.security.KeyGenParameterSpec
+    - android:java.security.KeyStore
+    - android:javax.crypto.Cipher
+    - android:javax.crypto.KeyGenerator
+license: apache2
diff --git a/prebuilts/gradle/ConfirmCredential/Application/AndroidManifest.xml b/prebuilts/gradle/ConfirmCredential/Application/AndroidManifest.xml
new file mode 100644
index 0000000..8f8fbbc
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/AndroidManifest.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.example.android.confirmcredential" >
+
+    <uses-permission android:name="android.permission.VIBRATE" />
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme" >
+        <activity
+                android:name=".MainActivity"
+                android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/build.gradle b/prebuilts/gradle/ConfirmCredential/Application/build.gradle
new file mode 100644
index 0000000..c467c43
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/build.gradle
@@ -0,0 +1,73 @@
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.2.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+dependencies {
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion "android-MNC"
+    buildToolsVersion "22.0.1"
+
+    defaultConfig {
+        minSdkVersion "MNC"
+        targetSdkVersion "MNC"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..12f9456
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.example.android.confirmcredential" >
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme" >
+        <activity
+                android:name=".MainActivity"
+                android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/java/com/example/android/confirmcredential/MainActivity.java b/prebuilts/gradle/ConfirmCredential/Application/src/main/java/com/example/android/confirmcredential/MainActivity.java
new file mode 100644
index 0000000..b8cf6e1
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/java/com/example/android/confirmcredential/MainActivity.java
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.example.android.confirmcredential;
+
+import android.app.Activity;
+import android.app.KeyguardManager;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.security.keystore.KeyGenParameterSpec;
+import android.security.keystore.KeyPermanentlyInvalidatedException;
+import android.security.keystore.KeyProperties;
+import android.security.keystore.UserNotAuthenticatedException;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.io.IOException;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateException;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.KeyGenerator;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+
+/**
+ * Main entry point for the sample, showing a backpack and "Purchase" button.
+ */
+public class MainActivity extends Activity {
+
+    /** Alias for our key in the Android Key Store. */
+    private static final String KEY_NAME = "my_key";
+    private static final byte[] SECRET_BYTE_ARRAY = new byte[] {1, 2, 3, 4, 5, 6};
+
+    private static final int REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS = 1;
+
+    /**
+     * If the user has unlocked the device Within the last this number of seconds,
+     * it can be considered as an authenticator.
+     */
+    private static final int AUTHENTICATION_DURATION_SECONDS = 30;
+
+    private KeyguardManager mKeyguardManager;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        mKeyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
+        Button purchaseButton = (Button) findViewById(R.id.purchase_button);
+        if (!mKeyguardManager.isKeyguardSecure()) {
+            // Show a message that the user hasn't set up a lock screen.
+            Toast.makeText(this,
+                    "Secure lock screen hasn't set up.\n"
+                            + "Go to 'Settings -> Security -> Screenlock' to set up a lock screen",
+                    Toast.LENGTH_LONG).show();
+            purchaseButton.setEnabled(false);
+            return;
+        }
+        createKey();
+        findViewById(R.id.purchase_button).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // Test to encrypt something. It might fail if the timeout expired (30s).
+                tryEncrypt();
+            }
+        });
+    }
+
+    /**
+     * Tries to encrypt some data with the generated key in {@link #createKey} which is
+     * only works if the user has just authenticated via device credentials.
+     */
+    private void tryEncrypt() {
+        try {
+            KeyStore keyStore = KeyStore.getInstance("AndroidKeyStore");
+            keyStore.load(null);
+            SecretKey secretKey = (SecretKey) keyStore.getKey(KEY_NAME, null);
+            Cipher cipher = Cipher.getInstance(
+                    KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/"
+                            + KeyProperties.ENCRYPTION_PADDING_PKCS7);
+
+            // Try encrypting something, it will only work if the user authenticated within
+            // the last AUTHENTICATION_DURATION_SECONDS seconds.
+            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
+            cipher.doFinal(SECRET_BYTE_ARRAY);
+
+            // If the user has recently authenticated, you will reach here.
+            showAlreadyAuthenticated();
+        } catch (UserNotAuthenticatedException e) {
+            // User is not authenticated, let's authenticate with device credentials.
+            showAuthenticationScreen();
+        } catch (KeyPermanentlyInvalidatedException e) {
+            // This happens if the lock screen has been disabled or reset after the key was
+            // generated after the key was generated.
+            Toast.makeText(this, "Keys are invalidated after created. Retry the purchase\n"
+                            + e.getMessage(),
+                    Toast.LENGTH_LONG).show();
+        } catch (BadPaddingException | IllegalBlockSizeException | KeyStoreException |
+                CertificateException | UnrecoverableKeyException | IOException
+                | NoSuchPaddingException | NoSuchAlgorithmException | InvalidKeyException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * Creates a symmetric key in the Android Key Store which can only be used after the user has
+     * authenticated with device credentials within the last X seconds.
+     */
+    private void createKey() {
+        // Generate a key to decrypt payment credentials, tokens, etc.
+        // This will most likely be a registration step for the user when they are setting up your app.
+        try {
+            KeyStore keyStore = KeyStore.getInstance("AndroidKeyStore");
+            keyStore.load(null);
+            KeyGenerator keyGenerator = KeyGenerator.getInstance(
+                    KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
+
+            // Set the alias of the entry in Android KeyStore where the key will appear
+            // and the constrains (purposes) in the constructor of the Builder
+            keyGenerator.init(new KeyGenParameterSpec.Builder(KEY_NAME,
+                    KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
+                    .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
+                    .setUserAuthenticationRequired(true)
+                            // Require that the user has unlocked in the last 30 seconds
+                    .setUserAuthenticationValidityDurationSeconds(AUTHENTICATION_DURATION_SECONDS)
+                    .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
+                    .build());
+            keyGenerator.generateKey();
+        } catch (NoSuchAlgorithmException | NoSuchProviderException
+                | InvalidAlgorithmParameterException | KeyStoreException
+                | CertificateException | IOException e) {
+            throw new RuntimeException("Failed to create a symmetric key", e);
+        }
+    }
+
+    private void showAuthenticationScreen() {
+        // Create the Confirm Credentials screen. You can customize the title and description. Or
+        // we will provide a generic one for you if you leave it null
+        Intent intent = mKeyguardManager.createConfirmDeviceCredentialIntent(null, null);
+        if (intent != null) {
+            startActivityForResult(intent, REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS);
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS) {
+            // Challenge completed, proceed with using cipher
+            if (resultCode == RESULT_OK) {
+                showPurchaseConfirmation();
+            } else {
+                // The user canceled or didn’t complete the lock screen
+                // operation. Go to error/cancellation flow.
+            }
+        }
+    }
+
+    private void showPurchaseConfirmation() {
+        findViewById(R.id.confirmation_message).setVisibility(View.VISIBLE);
+        findViewById(R.id.purchase_button).setEnabled(false);
+    }
+
+    private void showAlreadyAuthenticated() {
+        TextView textView = (TextView) findViewById(
+                R.id.already_has_valid_device_credential_message);
+        textView.setVisibility(View.VISIBLE);
+        textView.setText(getString(
+                R.string.already_confirmed_device_credentials_within_last_x_seconds,
+                AUTHENTICATION_DURATION_SECONDS));
+        findViewById(R.id.purchase_button).setEnabled(false);
+    }
+
+}
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable-nodpi/android_robot.png b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable-nodpi/android_robot.png
new file mode 100644
index 0000000..40bf934
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable-nodpi/android_robot.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable/card.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable/card.xml
new file mode 100644
index 0000000..691a4c5
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/drawable/card.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <solid
+        android:color="#fefefe"/>
+
+    <corners
+        android:radius="2dp" />
+</shape>
\ No newline at end of file
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..da65a00
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<ScrollView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:orientation="vertical">
+
+        <ImageView
+                android:layout_width="150dp"
+                android:layout_height="150dp"
+                android:layout_marginTop="32dp"
+                android:layout_marginBottom="32dp"
+                android:layout_gravity="center_horizontal"
+                android:scaleType="fitCenter"
+                android:src="@drawable/android_robot"/>
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginEnd="8dp"
+                android:orientation="vertical"
+                android:background="@drawable/card"
+                android:elevation="4dp"
+                android:paddingTop="16dp"
+                android:paddingBottom="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp">
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="@android:style/TextAppearance.Material.Headline"
+                    android:text="@string/item_title"/>
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                    android:textColor="?android:attr/colorAccent"
+                    android:text="@string/item_price"/>
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="16dp"
+                    android:textAppearance="@android:style/TextAppearance.Material.Body1"
+                    android:textColor="?android:attr/textColorSecondary"
+                    android:text="@string/item_description"/>
+
+        </LinearLayout>
+        <Button style="@android:style/Widget.Material.Button.Colored"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:layout_marginEnd="4dp"
+                android:layout_gravity="end"
+                android:textColor="?android:attr/textColorPrimaryInverse"
+                android:text="@string/purchase"
+                android:id="@+id/purchase_button"
+                android:layout_alignParentEnd="true"/>
+
+        <TextView
+                android:id="@+id/confirmation_message"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                android:textColor="?android:attr/colorAccent"
+                android:text="@string/purchase_done"
+                android:visibility="gone"/>
+
+        <TextView
+                android:id="@+id/already_has_valid_device_credential_message"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                android:textColor="?android:attr/colorAccent"
+                android:text="@string/already_confirmed_device_credentials_within_last_x_seconds"
+                android:visibility="gone"/>
+    </LinearLayout>
+</ScrollView>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..e9cd9e3
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..b6c3e31
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..85a14a0
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..d9d35b0
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..a764233
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..b3dab90
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">Confirm Credential</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+This sample demonstrates how you can use device credentials (PIN, Pattern, Password) in your app
+to authenticate the user before they are trying to complete some actions.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/strings.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..b6ff9d3
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/strings.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<resources>
+    <string name="purchase">Purchase</string>
+    <string name="item_title">White Mesh Pluto Backpack</string>
+    <string name="item_price">$62.68</string>
+    <string name="item_description">Mesh backpack in white. Black textile trim throughout.</string>
+    <string name="purchase_done">Device credential confirmed.</string>
+    <string name="already_confirmed_device_credentials_within_last_x_seconds">
+        The device credential has been already confirmed within the last %1$s seconds.</string>
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmCredential/CONTRIBUTING.md b/prebuilts/gradle/ConfirmCredential/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/ConfirmCredential/LICENSE b/prebuilts/gradle/ConfirmCredential/LICENSE
new file mode 100644
index 0000000..4f22946
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/LICENSE
@@ -0,0 +1,647 @@
+Apache License
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+
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+     to extract, reuse, reproduce, and Share all or a substantial
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+For the avoidance of doubt, this Section 4 supplements and does not
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+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
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+  a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
+     EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
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+     ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT
+     KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT
+     ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.
+
+  b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
+     TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
+     NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
+     INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
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+     ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
+     DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR
+     IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.
+
+  c. The disclaimer of warranties and limitation of liability provided
+     above shall be interpreted in a manner that, to the extent
+     possible, most closely approximates an absolute disclaimer and
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+
+
+Section 6 -- Term and Termination.
+
+  a. This Public License applies for the term of the Copyright and
+     Similar Rights licensed here. However, if You fail to comply with
+     this Public License, then Your rights under this Public License
+     terminate automatically.
+
+  b. Where Your right to use the Licensed Material has terminated under
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+
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+          it is cured within 30 days of Your discovery of the
+          violation; or
+
+       2. upon express reinstatement by the Licensor.
+
+     For the avoidance of doubt, this Section 6(b) does not affect any
+     right the Licensor may have to seek remedies for Your violations
+     of this Public License.
+
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+     will not terminate this Public License.
+
+  d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
+     License.
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+Section 7 -- Other Terms and Conditions.
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+     terms or conditions communicated by You unless expressly agreed.
+
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+     Licensed Material not stated herein are separate from and
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+
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+Section 8 -- Interpretation.
+
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+     be made without permission under this Public License.
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+  b. To the extent possible, if any provision of this Public License is
+     deemed unenforceable, it shall be automatically reformed to the
+     minimum extent necessary to make it enforceable. If the provision
+     cannot be reformed, it shall be severed from this Public License
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+     conditions.
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+     failure to comply consented to unless expressly agreed to by the
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+     as a limitation upon, or waiver of, any privileges and immunities
+     that apply to the Licensor or You, including from the legal
+     processes of any jurisdiction or authority.
+
+=======================================================================
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+Creative Commons may be contacted at creativecommons.org.
+
diff --git a/prebuilts/gradle/ConfirmCredential/README.md b/prebuilts/gradle/ConfirmCredential/README.md
new file mode 100644
index 0000000..155492c
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/README.md
@@ -0,0 +1,78 @@
+
+Android Confirm Credential Sample
+===================================
+
+A sample that demonstrates how to use device credentials (PIN, Pattern, Password) in your app
+
+Introduction
+------------
+
+This sample demonstrates how you can use device credentials (PIN, Pattern, Password) in your app
+to authenticate the user before they are trying to complete some actions.
+
+First you need to create a symmetric key in the Android Key Store using [KeyGenerator][1]
+which can be only be used after the user has authenticated after the user is authenticated
+with their device credentials and pass [KeyGenParameterSpec][2].
+
+By setting an integer value to the
+[KeyGeneratorSpec.Builder.setUserAuthenticationValidityDurationSeconds][3], you can consider the
+user as authenticated if the user has been authenticated with the device credentials
+within the last x seconds.
+
+Then by calling [KeyguardManager.createConfirmDeviceCredentialIntent][4], you can show a screen
+to confirm device credentials to the user.
+
+[1]: https://developer.android.com/reference/javax/crypto/KeyGenerator.html
+[2]: https://developer.android.com/reference/android/security/KeyGenParameterSpec.html
+[3]: https://developer.android.com/reference/android/security/KeyGenParameterSpec.Builder#setUserAuthenticationValidityDurationSeconds().html
+[4]: https://developer.android.com/reference/android/app/KeyguardManager.createConfirmDeviceCredentialIntent().html
+
+Pre-requisites
+--------------
+
+- Android SDK vandroid-MNC
+- Android Build Tools v22.0.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/1-purchase.png" height="400" alt="Screenshot"/> <img src="screenshots/2-show-confirm-credential.png" height="400" alt="Screenshot"/> <img src="screenshots/3-already-authenticated.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-Confirm Credential
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/ConfirmCredential/build.gradle b/prebuilts/gradle/ConfirmCredential/build.gradle
new file mode 100644
index 0000000..1dac6de
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ConfirmCredential/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/ConfirmCredential/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/ConfirmCredential/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..afb3296
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-2.2.1-bin.zip
diff --git a/prebuilts/gradle/ConfirmCredential/gradlew b/prebuilts/gradle/ConfirmCredential/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/ConfirmCredential/gradlew.bat b/prebuilts/gradle/ConfirmCredential/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/ConfirmCredential/screenshots/1-purchase.png b/prebuilts/gradle/ConfirmCredential/screenshots/1-purchase.png
new file mode 100644
index 0000000..82a616d
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/screenshots/1-purchase.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/screenshots/2-show-confirm-credential.png b/prebuilts/gradle/ConfirmCredential/screenshots/2-show-confirm-credential.png
new file mode 100644
index 0000000..869fcae
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/screenshots/2-show-confirm-credential.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/screenshots/3-already-authenticated.png b/prebuilts/gradle/ConfirmCredential/screenshots/3-already-authenticated.png
new file mode 100644
index 0000000..bd55084
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/screenshots/3-already-authenticated.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/screenshots/big-icon.png b/prebuilts/gradle/ConfirmCredential/screenshots/big-icon.png
new file mode 100644
index 0000000..7449b96
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/screenshots/big-icon.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmCredential/settings.gradle b/prebuilts/gradle/ConfirmCredential/settings.gradle
new file mode 100644
index 0000000..9464a35
--- /dev/null
+++ b/prebuilts/gradle/ConfirmCredential/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/.google/packaging.yaml b/prebuilts/gradle/ConfirmDeviceCredentials/.google/packaging.yaml
new file mode 100644
index 0000000..94af7d0
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/.google/packaging.yaml
@@ -0,0 +1,21 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFT
+technologies: [Android]
+categories:   [Security]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-Confirm Device Credentials
+level:        INTERMEDIATE
+icon:         screenshots/big-icon.png
+apiRefs:
+    - android:android.app.KeyguardManager.createConfirmDeviceCredentialIntent
+    - android:android.security.KeyGenParameterSpec
+    - android:java.security.KeyStore
+    - android:javax.crypto.Cipher
+    - android:javax.crypto.KeyGenerator
+license: apache2
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/AndroidManifest.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/AndroidManifest.xml
new file mode 100644
index 0000000..75b68c1
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/AndroidManifest.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.example.android.confirmdevicecredentials" >
+
+    <uses-permission android:name="android.permission.VIBRATE" />
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme" >
+        <activity
+                android:name=".MainActivity"
+                android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/build.gradle b/prebuilts/gradle/ConfirmDeviceCredentials/Application/build.gradle
new file mode 100644
index 0000000..cdec381
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/build.gradle
@@ -0,0 +1,73 @@
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.1.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+dependencies {
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion "android-MNC"
+    buildToolsVersion "22.0.1"
+
+    defaultConfig {
+        minSdkVersion "android-MNC"
+        targetSdkVersion "android-MNC"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..6762571
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.example.android.confirmdevicecredentials" >
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme" >
+        <activity
+                android:name=".MainActivity"
+                android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/java/com/example/android/confirmdevicecredentials/MainActivity.java b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/java/com/example/android/confirmdevicecredentials/MainActivity.java
new file mode 100644
index 0000000..bce9aae
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/java/com/example/android/confirmdevicecredentials/MainActivity.java
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.example.android.confirmdevicecredentials;
+
+import android.app.Activity;
+import android.app.KeyguardManager;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.security.keystore.KeyGenParameterSpec;
+import android.security.keystore.KeyProperties;
+import android.security.keystore.UserNotAuthenticatedException;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.io.IOException;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateException;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.KeyGenerator;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+
+/**
+ * Main entry point for the sample, showing a backpack and "Purchase" button.
+ */
+public class MainActivity extends Activity {
+
+    /** Alias for our key in the Android Key Store. */
+    private static final String KEY_NAME = "my_key";
+    private static final byte[] SECRET_BYTE_ARRAY = new byte[] {1, 2, 3, 4, 5, 6};
+
+    private static final int REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS = 1;
+
+    /**
+     * If the user has unlocked the device Within the last this number of seconds,
+     * it can be considered as an authenticator.
+     */
+    private static final int AUTHENTICATION_DURATION_SECONDS = 30;
+
+    private KeyguardManager mKeyguardManager;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        Button purchaseButton = (Button) findViewById(R.id.purchase_button);
+        if (!createKey()) {
+            // Failed to create a key due to probably the user hasn't set up a lock screen yet.
+            purchaseButton.setEnabled(false);
+            return;
+        }
+        findViewById(R.id.purchase_button).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // Test to encrypt something. It might fail if the timeout expired (30s).
+                tryEncrypt();
+            }
+        });
+        mKeyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
+    }
+
+    /**
+     * Tries to encrypt some data with the generated key in {@link #createKey} which is
+     * only works if the user has just authenticated via device credentials.
+     */
+    private void tryEncrypt() {
+        try {
+            KeyStore keyStore = KeyStore.getInstance("AndroidKeyStore");
+            keyStore.load(null);
+            SecretKey secretKey = (SecretKey) keyStore.getKey(KEY_NAME, null);
+            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
+
+            // Try encrypting something, it will only work if the user authenticated within
+            // the last AUTHENTICATION_DURATION_SECONDS seconds.
+            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
+            cipher.doFinal(SECRET_BYTE_ARRAY);
+
+            // If the user has recently authenticated, you will reach here.
+            showAlreadyAuthenticated();
+        } catch (UserNotAuthenticatedException e) {
+            // User is not authenticated, let's authenticate with device credentials.
+            showAuthenticationScreen();
+        } catch (BadPaddingException | IllegalBlockSizeException | KeyStoreException |
+                CertificateException | UnrecoverableKeyException | IOException
+                | NoSuchPaddingException | NoSuchAlgorithmException | InvalidKeyException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * Creates a symmetric key in the Android Key Store which can only be used after the user has
+     * authenticated with device credentials within the last X seconds.
+     *
+     * @return {@code true} when a key is created successfully, {@code false} otherwise.
+     */
+    private boolean createKey() {
+        // Generate a key to decrypt payment credentials, tokens, etc.
+        // This will most likely be a registration step for the user when they are setting up your app.
+        try {
+            KeyStore keyStore = KeyStore.getInstance("AndroidKeyStore");
+            keyStore.load(null);
+            KeyGenerator keyGenerator = KeyGenerator.getInstance("AES", "AndroidKeyStore");
+
+            // Set the alias of the entry in Android KeyStore where the key will appear
+            // and the constrains (purposes) in the constructor of the Builder
+            keyGenerator.init(new KeyGenParameterSpec.Builder(KEY_NAME,
+                            KeyProperties.PURPOSE_ENCRYPT |
+                            KeyProperties.PURPOSE_DECRYPT)
+                    .setBlockModes("CBC")
+                    .setUserAuthenticationRequired(true)
+                            // Require that the user has unlocked in the last 30 seconds
+                    .setUserAuthenticationValidityDurationSeconds(AUTHENTICATION_DURATION_SECONDS)
+                    .setEncryptionPaddings("PKCS7Padding")
+                    .build());
+            keyGenerator.generateKey();
+            return true;
+        } catch (IllegalStateException e) {
+            // Show a message that the user hasn't set up a lock screen.
+            Toast.makeText(this,
+                    "Go to 'Settings -> Security -> Screenlock' to set up device screenlock\n" +
+                            e.getMessage(), Toast.LENGTH_LONG).show();
+            return false;
+        } catch (NoSuchAlgorithmException | NoSuchProviderException
+                | InvalidAlgorithmParameterException | KeyStoreException
+                | CertificateException | IOException e) {
+            throw new RuntimeException("Failed to create a symmetric key", e);
+        }
+    }
+
+    private void showAuthenticationScreen() {
+        // Create the Confirm Credentials screen. You can customize the title and description. Or
+        // we will provide a generic one for you if you leave it null
+        Intent intent = mKeyguardManager.createConfirmDeviceCredentialIntent(null, null);
+        if (intent != null) {
+            startActivityForResult(intent, REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS);
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS) {
+            // Challenge completed, proceed with using cipher
+            if (resultCode == RESULT_OK) {
+                showPurchaseConfirmation();
+            } else {
+                // The user canceled or didn’t complete the lock screen
+                // operation. Go to error/cancellation flow.
+            }
+        }
+    }
+
+    private void showPurchaseConfirmation() {
+        findViewById(R.id.confirmation_message).setVisibility(View.VISIBLE);
+        findViewById(R.id.purchase_button).setEnabled(false);
+    }
+
+    private void showAlreadyAuthenticated() {
+        TextView textView = (TextView) findViewById(
+                R.id.already_has_valid_device_credential_message);
+        textView.setVisibility(View.VISIBLE);
+        textView.setText(getString(
+                R.string.already_confirmed_device_credentials_within_last_x_seconds,
+                AUTHENTICATION_DURATION_SECONDS));
+        findViewById(R.id.purchase_button).setEnabled(false);
+    }
+
+}
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable-nodpi/android_robot.png b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable-nodpi/android_robot.png
new file mode 100644
index 0000000..40bf934
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable-nodpi/android_robot.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable/card.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable/card.xml
new file mode 100644
index 0000000..691a4c5
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/drawable/card.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <solid
+        android:color="#fefefe"/>
+
+    <corners
+        android:radius="2dp" />
+</shape>
\ No newline at end of file
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..da65a00
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<ScrollView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:orientation="vertical">
+
+        <ImageView
+                android:layout_width="150dp"
+                android:layout_height="150dp"
+                android:layout_marginTop="32dp"
+                android:layout_marginBottom="32dp"
+                android:layout_gravity="center_horizontal"
+                android:scaleType="fitCenter"
+                android:src="@drawable/android_robot"/>
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginEnd="8dp"
+                android:orientation="vertical"
+                android:background="@drawable/card"
+                android:elevation="4dp"
+                android:paddingTop="16dp"
+                android:paddingBottom="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp">
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="@android:style/TextAppearance.Material.Headline"
+                    android:text="@string/item_title"/>
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                    android:textColor="?android:attr/colorAccent"
+                    android:text="@string/item_price"/>
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="16dp"
+                    android:textAppearance="@android:style/TextAppearance.Material.Body1"
+                    android:textColor="?android:attr/textColorSecondary"
+                    android:text="@string/item_description"/>
+
+        </LinearLayout>
+        <Button style="@android:style/Widget.Material.Button.Colored"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:layout_marginEnd="4dp"
+                android:layout_gravity="end"
+                android:textColor="?android:attr/textColorPrimaryInverse"
+                android:text="@string/purchase"
+                android:id="@+id/purchase_button"
+                android:layout_alignParentEnd="true"/>
+
+        <TextView
+                android:id="@+id/confirmation_message"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                android:textColor="?android:attr/colorAccent"
+                android:text="@string/purchase_done"
+                android:visibility="gone"/>
+
+        <TextView
+                android:id="@+id/already_has_valid_device_credential_message"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                android:textColor="?android:attr/colorAccent"
+                android:text="@string/already_confirmed_device_credentials_within_last_x_seconds"
+                android:visibility="gone"/>
+    </LinearLayout>
+</ScrollView>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..e9cd9e3
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..b6c3e31
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..85a14a0
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..d9d35b0
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..a764233
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..6a29a87
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">Confirm Device Credentials</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+This sample demonstrates how you can use device credentials (PIN, Pattern, Password) in your app
+to authenticate the user before they are trying to complete some actions.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/strings.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..b6ff9d3
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/strings.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<resources>
+    <string name="purchase">Purchase</string>
+    <string name="item_title">White Mesh Pluto Backpack</string>
+    <string name="item_price">$62.68</string>
+    <string name="item_description">Mesh backpack in white. Black textile trim throughout.</string>
+    <string name="purchase_done">Device credential confirmed.</string>
+    <string name="already_confirmed_device_credentials_within_last_x_seconds">
+        The device credential has been already confirmed within the last %1$s seconds.</string>
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/CONTRIBUTING.md b/prebuilts/gradle/ConfirmDeviceCredentials/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/LICENSE b/prebuilts/gradle/ConfirmDeviceCredentials/LICENSE
new file mode 100644
index 0000000..1af981f
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
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+      "Licensor" shall mean the copyright owner or entity authorized by
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+
+      "Legal Entity" shall mean the union of the acting entity and all
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+      direction or management of such entity, whether by contract or
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
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+
+      "Work" shall mean the work of authorship, whether in Source or
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+      "Derivative Works" shall mean any work, whether in Source or Object
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
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+      communication on electronic mailing lists, source code control systems,
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+      designated in writing by the copyright owner as "Not a Contribution."
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
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+
+   2. Grant of Copyright License. Subject to the terms and conditions of
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+      meet the following conditions:
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+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
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+      (b) You must cause any modified files to carry prominent notices
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+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+
+      (d) If the Work includes a "NOTICE" text file as part of its
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+          include a readable copy of the attribution notices contained
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+          of the following places: within a NOTICE text file distributed
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+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
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+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
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+      identification within third-party archives.
+
+   Copyright 2014 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/README.md b/prebuilts/gradle/ConfirmDeviceCredentials/README.md
new file mode 100644
index 0000000..347ee6d
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/README.md
@@ -0,0 +1,78 @@
+
+Android Confirm Device Credentials Sample
+===================================
+
+A sample that demonstrates how to use device credentials (PIN, Pattern, Password) in your app
+
+Introduction
+------------
+
+This sample demonstrates how you can use device credentials (PIN, Pattern, Password) in your app
+to authenticate the user before they are trying to complete some actions.
+
+First you need to create a symmetric key in the Android Key Store using [KeyGenerator][1]
+which can be only be used after the user has authenticated after the user is authenticated
+with their device credentials and pass [KeyGenParameterSpec][2].
+
+By setting an integer value to the
+[KeyGeneratorSpec.Builder.setUserAuthenticationValidityDurationSeconds][3], you can consider the
+user as authenticated if the user has been authenticated with the device credentials
+within the last x seconds.
+
+Then by calling [KeyguardManager.createConfirmDeviceCredentialIntent][4], you can show a screen
+to confirm device credentials to the user.
+
+[1]: https://developer.android.com/reference/javax/crypto/KeyGenerator.html
+[2]: https://developer.android.com/reference/android/security/KeyGenParameterSpec.html
+[3]: https://developer.android.com/reference/android/security/KeyGenParameterSpec.Builder#setUserAuthenticationValidityDurationSeconds().html
+[4]: https://developer.android.com/reference/android/app/KeyguardManager.createConfirmDeviceCredentialIntent().html
+
+Pre-requisites
+--------------
+
+- Android SDK vandroid-MNC
+- Android Build Tools v22.0.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/1-purchase.png" height="400" alt="Screenshot"/> <img src="screenshots/2-show-confirm-device-credential.png" height="400" alt="Screenshot"/> <img src="screenshots/3-already-authenticated.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-Confirm Device Credentials
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/build.gradle b/prebuilts/gradle/ConfirmDeviceCredentials/build.gradle
new file mode 100644
index 0000000..1dac6de
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/ConfirmDeviceCredentials/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/ConfirmDeviceCredentials/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..afb3296
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-2.2.1-bin.zip
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/gradlew b/prebuilts/gradle/ConfirmDeviceCredentials/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/gradlew.bat b/prebuilts/gradle/ConfirmDeviceCredentials/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/1-purchase.png b/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/1-purchase.png
new file mode 100644
index 0000000..82a616d
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/1-purchase.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/2-show-confirm-device-credential.png b/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/2-show-confirm-device-credential.png
new file mode 100644
index 0000000..869fcae
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/2-show-confirm-device-credential.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/3-already-authenticated.png b/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/3-already-authenticated.png
new file mode 100644
index 0000000..bd55084
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/3-already-authenticated.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/big-icon.png b/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/big-icon.png
new file mode 100644
index 0000000..7449b96
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/screenshots/big-icon.png
Binary files differ
diff --git a/prebuilts/gradle/ConfirmDeviceCredentials/settings.gradle b/prebuilts/gradle/ConfirmDeviceCredentials/settings.gradle
new file mode 100644
index 0000000..9464a35
--- /dev/null
+++ b/prebuilts/gradle/ConfirmDeviceCredentials/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/CustomChoiceList/Application/build.gradle b/prebuilts/gradle/CustomChoiceList/Application/build.gradle
index eb1a23c..672e647 100644
--- a/prebuilts/gradle/CustomChoiceList/Application/build.gradle
+++ b/prebuilts/gradle/CustomChoiceList/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/CustomChoiceList/NOTICE b/prebuilts/gradle/CustomChoiceList/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/CustomChoiceList/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/CustomNotifications/Application/build.gradle b/prebuilts/gradle/CustomNotifications/Application/build.gradle
index eb1a23c..c45e507 100644
--- a/prebuilts/gradle/CustomNotifications/Application/build.gradle
+++ b/prebuilts/gradle/CustomNotifications/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
@@ -17,6 +17,8 @@
 
 dependencies {
     compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 }
 
 // The sample build uses multiple directories to
@@ -32,7 +34,7 @@
     buildToolsVersion "22.0.1"
 
     defaultConfig {
-        minSdkVersion 4
+        minSdkVersion 16
         targetSdkVersion 22
     }
 
diff --git a/prebuilts/gradle/CustomNotifications/NOTICE b/prebuilts/gradle/CustomNotifications/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/CustomNotifications/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/CustomTransition/Application/build.gradle b/prebuilts/gradle/CustomTransition/Application/build.gradle
index cedf6c9..db9a58b 100644
--- a/prebuilts/gradle/CustomTransition/Application/build.gradle
+++ b/prebuilts/gradle/CustomTransition/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/CustomTransition/NOTICE b/prebuilts/gradle/CustomTransition/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/CustomTransition/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DataLayer/Application/build.gradle b/prebuilts/gradle/DataLayer/Application/build.gradle
index 86f88ca..b51c137 100644
--- a/prebuilts/gradle/DataLayer/Application/build.gradle
+++ b/prebuilts/gradle/DataLayer/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DataLayer/Application/src/main/java/com/example/android/wearable/datalayer/MainActivity.java b/prebuilts/gradle/DataLayer/Application/src/main/java/com/example/android/wearable/datalayer/MainActivity.java
index e6e4aa2..1c67c0e 100644
--- a/prebuilts/gradle/DataLayer/Application/src/main/java/com/example/android/wearable/datalayer/MainActivity.java
+++ b/prebuilts/gradle/DataLayer/Application/src/main/java/com/example/android/wearable/datalayer/MainActivity.java
@@ -216,8 +216,8 @@
     @Override //DataListener
     public void onDataChanged(DataEventBuffer dataEvents) {
         LOGD(TAG, "onDataChanged: " + dataEvents);
+        // Need to freeze the dataEvents so they will exist later on the UI thread
         final List<DataEvent> events = FreezableUtils.freezeIterable(dataEvents);
-        dataEvents.close();
         runOnUiThread(new Runnable() {
             @Override
             public void run() {
diff --git a/prebuilts/gradle/DataLayer/NOTICE b/prebuilts/gradle/DataLayer/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DataLayer/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DataLayer/Wearable/build.gradle b/prebuilts/gradle/DataLayer/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/DataLayer/Wearable/build.gradle
+++ b/prebuilts/gradle/DataLayer/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DataLayer/Wearable/src/main/java/com/example/android/wearable/datalayer/DataLayerListenerService.java b/prebuilts/gradle/DataLayer/Wearable/src/main/java/com/example/android/wearable/datalayer/DataLayerListenerService.java
index 34d3ca3..67dcef9 100644
--- a/prebuilts/gradle/DataLayer/Wearable/src/main/java/com/example/android/wearable/datalayer/DataLayerListenerService.java
+++ b/prebuilts/gradle/DataLayer/Wearable/src/main/java/com/example/android/wearable/datalayer/DataLayerListenerService.java
@@ -22,7 +22,6 @@
 
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.api.GoogleApiClient;
-import com.google.android.gms.common.data.FreezableUtils;
 import com.google.android.gms.wearable.DataEvent;
 import com.google.android.gms.wearable.DataEventBuffer;
 import com.google.android.gms.wearable.MessageEvent;
@@ -59,8 +58,6 @@
     @Override
     public void onDataChanged(DataEventBuffer dataEvents) {
         LOGD(TAG, "onDataChanged: " + dataEvents);
-        final List<DataEvent> events = FreezableUtils.freezeIterable(dataEvents);
-        dataEvents.close();
         if (!mGoogleApiClient.isConnected() || !mGoogleApiClient.isConnecting()) {
             ConnectionResult connectionResult = mGoogleApiClient
                     .blockingConnect(30, TimeUnit.SECONDS);
@@ -72,7 +69,7 @@
         }
 
         // Loop through the events and send a message back to the node that created the data item.
-        for (DataEvent event : events) {
+        for (DataEvent event : dataEvents) {
             Uri uri = event.getDataItem().getUri();
             String path = uri.getPath();
             if (COUNT_PATH.equals(path)) {
diff --git a/prebuilts/gradle/DataLayer/Wearable/src/main/java/com/example/android/wearable/datalayer/MainActivity.java b/prebuilts/gradle/DataLayer/Wearable/src/main/java/com/example/android/wearable/datalayer/MainActivity.java
index 7d2a28c..678e428 100644
--- a/prebuilts/gradle/DataLayer/Wearable/src/main/java/com/example/android/wearable/datalayer/MainActivity.java
+++ b/prebuilts/gradle/DataLayer/Wearable/src/main/java/com/example/android/wearable/datalayer/MainActivity.java
@@ -42,7 +42,6 @@
 import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
 import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
 import com.google.android.gms.common.api.ResultCallback;
-import com.google.android.gms.common.data.FreezableUtils;
 import com.google.android.gms.wearable.Asset;
 import com.google.android.gms.wearable.CapabilityApi;
 import com.google.android.gms.wearable.CapabilityInfo;
@@ -151,9 +150,7 @@
     public void onDataChanged(DataEventBuffer dataEvents) {
         LOGD(TAG, "onDataChanged(): " + dataEvents);
 
-        final List<DataEvent> events = FreezableUtils.freezeIterable(dataEvents);
-        dataEvents.close();
-        for (DataEvent event : events) {
+        for (DataEvent event : dataEvents) {
             if (event.getType() == DataEvent.TYPE_CHANGED) {
                 String path = event.getDataItem().getUri().getPath();
                 if (DataLayerListenerService.IMAGE_PATH.equals(path)) {
diff --git a/prebuilts/gradle/DelayedConfirmation/Application/build.gradle b/prebuilts/gradle/DelayedConfirmation/Application/build.gradle
index 86f88ca..b51c137 100644
--- a/prebuilts/gradle/DelayedConfirmation/Application/build.gradle
+++ b/prebuilts/gradle/DelayedConfirmation/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DelayedConfirmation/NOTICE b/prebuilts/gradle/DelayedConfirmation/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DelayedConfirmation/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DelayedConfirmation/Wearable/build.gradle b/prebuilts/gradle/DelayedConfirmation/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/DelayedConfirmation/Wearable/build.gradle
+++ b/prebuilts/gradle/DelayedConfirmation/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DeviceOwner/Application/build.gradle b/prebuilts/gradle/DeviceOwner/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/DeviceOwner/Application/build.gradle
+++ b/prebuilts/gradle/DeviceOwner/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DeviceOwner/NOTICE b/prebuilts/gradle/DeviceOwner/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DeviceOwner/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DirectorySelection/Application/build.gradle b/prebuilts/gradle/DirectorySelection/Application/build.gradle
index 4d95bc1..d980ed3 100644
--- a/prebuilts/gradle/DirectorySelection/Application/build.gradle
+++ b/prebuilts/gradle/DirectorySelection/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DirectorySelection/NOTICE b/prebuilts/gradle/DirectorySelection/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DirectorySelection/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DisplayingBitmaps/Application/build.gradle b/prebuilts/gradle/DisplayingBitmaps/Application/build.gradle
index 05b8257..4a47647 100644
--- a/prebuilts/gradle/DisplayingBitmaps/Application/build.gradle
+++ b/prebuilts/gradle/DisplayingBitmaps/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DisplayingBitmaps/NOTICE b/prebuilts/gradle/DisplayingBitmaps/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DisplayingBitmaps/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DocumentCentricApps/Application/build.gradle b/prebuilts/gradle/DocumentCentricApps/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/DocumentCentricApps/Application/build.gradle
+++ b/prebuilts/gradle/DocumentCentricApps/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DocumentCentricApps/NOTICE b/prebuilts/gradle/DocumentCentricApps/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DocumentCentricApps/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DocumentCentricRelinquishIdentity/Application/build.gradle b/prebuilts/gradle/DocumentCentricRelinquishIdentity/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/DocumentCentricRelinquishIdentity/Application/build.gradle
+++ b/prebuilts/gradle/DocumentCentricRelinquishIdentity/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DocumentCentricRelinquishIdentity/NOTICE b/prebuilts/gradle/DocumentCentricRelinquishIdentity/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DocumentCentricRelinquishIdentity/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DoneBar/Application/build.gradle b/prebuilts/gradle/DoneBar/Application/build.gradle
index 9f7c8dc..c9fe712 100644
--- a/prebuilts/gradle/DoneBar/Application/build.gradle
+++ b/prebuilts/gradle/DoneBar/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DoneBar/NOTICE b/prebuilts/gradle/DoneBar/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DoneBar/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/DrawableTinting/Application/build.gradle b/prebuilts/gradle/DrawableTinting/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/DrawableTinting/Application/build.gradle
+++ b/prebuilts/gradle/DrawableTinting/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/DrawableTinting/NOTICE b/prebuilts/gradle/DrawableTinting/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/DrawableTinting/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ElevationBasic/Application/build.gradle b/prebuilts/gradle/ElevationBasic/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/ElevationBasic/Application/build.gradle
+++ b/prebuilts/gradle/ElevationBasic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ElevationBasic/NOTICE b/prebuilts/gradle/ElevationBasic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ElevationBasic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ElevationDrag/Application/build.gradle b/prebuilts/gradle/ElevationDrag/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/ElevationDrag/Application/build.gradle
+++ b/prebuilts/gradle/ElevationDrag/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ElevationDrag/NOTICE b/prebuilts/gradle/ElevationDrag/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ElevationDrag/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ElizaChat/Application/build.gradle b/prebuilts/gradle/ElizaChat/Application/build.gradle
index 3a94103..054db59 100644
--- a/prebuilts/gradle/ElizaChat/Application/build.gradle
+++ b/prebuilts/gradle/ElizaChat/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ElizaChat/NOTICE b/prebuilts/gradle/ElizaChat/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ElizaChat/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/FindMyPhone/Application/build.gradle b/prebuilts/gradle/FindMyPhone/Application/build.gradle
index 86f88ca..b51c137 100644
--- a/prebuilts/gradle/FindMyPhone/Application/build.gradle
+++ b/prebuilts/gradle/FindMyPhone/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/FindMyPhone/Application/src/main/java/com/example/android/wearable/findphone/SoundAlarmListenerService.java b/prebuilts/gradle/FindMyPhone/Application/src/main/java/com/example/android/wearable/findphone/SoundAlarmListenerService.java
index c89db9d..3de7501 100644
--- a/prebuilts/gradle/FindMyPhone/Application/src/main/java/com/example/android/wearable/findphone/SoundAlarmListenerService.java
+++ b/prebuilts/gradle/FindMyPhone/Application/src/main/java/com/example/android/wearable/findphone/SoundAlarmListenerService.java
@@ -95,7 +95,6 @@
                 }
             }
         }
-        dataEvents.close();
     }
 
 }
diff --git a/prebuilts/gradle/FindMyPhone/NOTICE b/prebuilts/gradle/FindMyPhone/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/FindMyPhone/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/FindMyPhone/Wearable/build.gradle b/prebuilts/gradle/FindMyPhone/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/FindMyPhone/Wearable/build.gradle
+++ b/prebuilts/gradle/FindMyPhone/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/FingerprintDialog/.google/packaging.yaml b/prebuilts/gradle/FingerprintDialog/.google/packaging.yaml
new file mode 100644
index 0000000..7b0714e
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/.google/packaging.yaml
@@ -0,0 +1,23 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFT
+technologies: [Android]
+categories:   [security]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-Fingerprint Dialog Sample
+level:        INTERMEDIATE
+icon:         screenshots/big-icon.png
+apiRefs:
+    - android:android.hardware.fingerprint.FingerprintManager
+    - android:android.hardware.fingerprint.FingerprintManager.AuthenticationCallback
+    - android:android.hardware.fingerprint.FingerprintManager.CryptoObject
+    - android:android.security.KeyGenParameterSpec
+    - android:java.security.KeyStore
+    - android:javax.crypto.Cipher
+    - android:javax.crypto.KeyGenerator
+license: apache2
diff --git a/prebuilts/gradle/FingerprintDialog/Application/build.gradle b/prebuilts/gradle/FingerprintDialog/Application/build.gradle
new file mode 100644
index 0000000..3ee9e57
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/build.gradle
@@ -0,0 +1,77 @@
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.2.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+dependencies {
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+    compile 'com.squareup.dagger:dagger:1.2.2'
+    compile 'com.squareup.dagger:dagger-compiler:1.2.2'
+    compile 'junit:junit:4.12'
+    compile 'org.mockito:mockito-core:1.10.19'
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion "android-MNC"
+    buildToolsVersion "22.0.1"
+
+    defaultConfig {
+        minSdkVersion "MNC"
+        targetSdkVersion "MNC"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..3b19fbe
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.example.android.fingerprintdialog"
+          android:versionCode="1"
+          android:versionName="1.0">
+
+    <uses-permission android:name="android.permission.USE_FINGERPRINT"/>
+
+    <application
+            android:name=".InjectedApplication"
+            android:allowBackup="true"
+            android:label="@string/app_name"
+            android:icon="@mipmap/ic_launcher"
+            android:theme="@style/AppTheme">
+
+        <activity android:name=".MainActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+
+        <activity
+            android:name=".SettingsActivity"
+            android:label="@string/action_settings" />
+    </application>
+</manifest>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintAuthenticationDialogFragment.java b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintAuthenticationDialogFragment.java
new file mode 100644
index 0000000..8909f75
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintAuthenticationDialogFragment.java
@@ -0,0 +1,258 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.example.android.fingerprintdialog;
+
+import android.app.DialogFragment;
+import android.content.SharedPreferences;
+import android.hardware.fingerprint.FingerprintManager;
+import android.os.Bundle;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.inputmethod.EditorInfo;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import javax.inject.Inject;
+
+/**
+ * A dialog which uses fingerprint APIs to authenticate the user, and falls back to password
+ * authentication if fingerprint is not available.
+ */
+public class FingerprintAuthenticationDialogFragment extends DialogFragment
+        implements TextView.OnEditorActionListener, FingerprintUiHelper.Callback {
+
+    private Button mCancelButton;
+    private Button mSecondDialogButton;
+    private View mFingerprintContent;
+    private View mBackupContent;
+    private EditText mPassword;
+    private CheckBox mUseFingerprintFutureCheckBox;
+    private TextView mPasswordDescriptionTextView;
+    private TextView mNewFingerprintEnrolledTextView;
+
+    private Stage mStage = Stage.FINGERPRINT;
+
+    private FingerprintManager.CryptoObject mCryptoObject;
+    private FingerprintUiHelper mFingerprintUiHelper;
+
+    @Inject FingerprintUiHelper.FingerprintUiHelperBuilder mFingerprintUiHelperBuilder;
+    @Inject InputMethodManager mInputMethodManager;
+    @Inject SharedPreferences mSharedPreferences;
+
+    @Inject
+    public FingerprintAuthenticationDialogFragment() {}
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Do not create a new Fragment when the Activity is re-created such as orientation changes.
+        setRetainInstance(true);
+        setStyle(DialogFragment.STYLE_NORMAL, android.R.style.Theme_Material_Light_Dialog);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        getDialog().setTitle(getString(R.string.sign_in));
+        View v = inflater.inflate(R.layout.fingerprint_dialog_container, container, false);
+        mCancelButton = (Button) v.findViewById(R.id.cancel_button);
+        mCancelButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                dismiss();
+            }
+        });
+
+        mSecondDialogButton = (Button) v.findViewById(R.id.second_dialog_button);
+        mSecondDialogButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                if (mStage == Stage.FINGERPRINT) {
+                    goToBackup();
+                } else {
+                    verifyPassword();
+                }
+            }
+        });
+        mFingerprintContent = v.findViewById(R.id.fingerprint_container);
+        mBackupContent = v.findViewById(R.id.backup_container);
+        mPassword = (EditText) v.findViewById(R.id.password);
+        mPassword.setOnEditorActionListener(this);
+        mPasswordDescriptionTextView = (TextView) v.findViewById(R.id.password_description);
+        mUseFingerprintFutureCheckBox = (CheckBox)
+                v.findViewById(R.id.use_fingerprint_in_future_check);
+        mNewFingerprintEnrolledTextView = (TextView)
+                v.findViewById(R.id.new_fingerprint_enrolled_description);
+        mFingerprintUiHelper = mFingerprintUiHelperBuilder.build(
+                (ImageView) v.findViewById(R.id.fingerprint_icon),
+                (TextView) v.findViewById(R.id.fingerprint_status), this);
+        updateStage();
+
+        // If fingerprint authentication is not available, switch immediately to the backup
+        // (password) screen.
+        if (!mFingerprintUiHelper.isFingerprintAuthAvailable()) {
+            goToBackup();
+        }
+        return v;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (mStage == Stage.FINGERPRINT) {
+            mFingerprintUiHelper.startListening(mCryptoObject);
+        }
+    }
+
+    public void setStage(Stage stage) {
+        mStage = stage;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        mFingerprintUiHelper.stopListening();
+    }
+
+    /**
+     * Sets the crypto object to be passed in when authenticating with fingerprint.
+     */
+    public void setCryptoObject(FingerprintManager.CryptoObject cryptoObject) {
+        mCryptoObject = cryptoObject;
+    }
+
+    /**
+     * Switches to backup (password) screen. This either can happen when fingerprint is not
+     * available or the user chooses to use the password authentication method by pressing the
+     * button. This can also happen when the user had too many fingerprint attempts.
+     */
+    private void goToBackup() {
+        mStage = Stage.PASSWORD;
+        updateStage();
+        mPassword.requestFocus();
+
+        // Show the keyboard.
+        mPassword.postDelayed(mShowKeyboardRunnable, 500);
+
+        // Fingerprint is not used anymore. Stop listening for it.
+        mFingerprintUiHelper.stopListening();
+    }
+
+    /**
+     * Checks whether the current entered password is correct, and dismisses the the dialog and
+     * let's the activity know about the result.
+     */
+    private void verifyPassword() {
+        if (!checkPassword(mPassword.getText().toString())) {
+            return;
+        }
+        MainActivity activity = ((MainActivity) getActivity());
+        if (mStage == Stage.NEW_FINGERPRINT_ENROLLED) {
+            SharedPreferences.Editor editor = mSharedPreferences.edit();
+            editor.putBoolean(getString(R.string.use_fingerprint_to_authenticate_key),
+                    mUseFingerprintFutureCheckBox.isChecked());
+            editor.apply();
+
+            if (mUseFingerprintFutureCheckBox.isChecked()) {
+                // Re-create the key so that fingerprints including new ones are validated.
+                activity.createKey();
+                mStage = Stage.FINGERPRINT;
+            }
+        }
+        mPassword.setText("");
+        ((MainActivity) getActivity()).onPurchased(false /* without Fingerprint */);
+        dismiss();
+    }
+
+    /**
+     * @return true if {@code password} is correct, false otherwise
+     */
+    private boolean checkPassword(String password) {
+        // Assume the password is always correct.
+        // In the real world situation, the password needs to be verified in the server side.
+        return password.length() > 0;
+    }
+
+    private final Runnable mShowKeyboardRunnable = new Runnable() {
+        @Override
+        public void run() {
+            mInputMethodManager.showSoftInput(mPassword, 0);
+        }
+    };
+
+    private void updateStage() {
+        switch (mStage) {
+            case FINGERPRINT:
+                mCancelButton.setText(R.string.cancel);
+                mSecondDialogButton.setText(R.string.use_password);
+                mFingerprintContent.setVisibility(View.VISIBLE);
+                mBackupContent.setVisibility(View.GONE);
+                break;
+            case NEW_FINGERPRINT_ENROLLED:
+                // Intentional fall through
+            case PASSWORD:
+                mCancelButton.setText(R.string.cancel);
+                mSecondDialogButton.setText(R.string.ok);
+                mFingerprintContent.setVisibility(View.GONE);
+                mBackupContent.setVisibility(View.VISIBLE);
+                if (mStage == Stage.NEW_FINGERPRINT_ENROLLED) {
+                    mPasswordDescriptionTextView.setVisibility(View.GONE);
+                    mNewFingerprintEnrolledTextView.setVisibility(View.VISIBLE);
+                    mUseFingerprintFutureCheckBox.setVisibility(View.VISIBLE);
+                }
+                break;
+        }
+    }
+
+    @Override
+    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+        if (actionId == EditorInfo.IME_ACTION_GO) {
+            verifyPassword();
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public void onAuthenticated() {
+        // Callback from FingerprintUiHelper. Let the activity know that authentication was
+        // successful.
+        ((MainActivity) getActivity()).onPurchased(true /* withFingerprint */);
+        dismiss();
+    }
+
+    @Override
+    public void onError() {
+        goToBackup();
+    }
+
+    /**
+     * Enumeration to indicate which authentication method the user is trying to authenticate with.
+     */
+    public enum Stage {
+        FINGERPRINT,
+        NEW_FINGERPRINT_ENROLLED,
+        PASSWORD
+    }
+}
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintModule.java b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintModule.java
new file mode 100644
index 0000000..964e1f6
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintModule.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.example.android.fingerprintdialog;
+
+import android.app.KeyguardManager;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.hardware.fingerprint.FingerprintManager;
+import android.preference.PreferenceManager;
+import android.security.keystore.KeyProperties;
+import android.view.inputmethod.InputMethodManager;
+
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
+
+import javax.crypto.Cipher;
+import javax.crypto.KeyGenerator;
+import javax.crypto.NoSuchPaddingException;
+
+import dagger.Module;
+import dagger.Provides;
+
+/**
+ * Dagger module for Fingerprint APIs.
+ */
+@Module(
+        library = true,
+        injects = {MainActivity.class}
+)
+public class FingerprintModule {
+
+    private final Context mContext;
+
+    public FingerprintModule(Context context) {
+        mContext = context;
+    }
+
+    @Provides
+    public Context providesContext() {
+        return mContext;
+    }
+
+    @Provides
+    public FingerprintManager providesFingerprintManager(Context context) {
+        return context.getSystemService(FingerprintManager.class);
+    }
+
+    @Provides
+    public KeyguardManager providesKeyguardManager(Context context) {
+        return context.getSystemService(KeyguardManager.class);
+    }
+
+    @Provides
+    public KeyStore providesKeystore() {
+        try {
+            return KeyStore.getInstance("AndroidKeyStore");
+        } catch (KeyStoreException e) {
+            throw new RuntimeException("Failed to get an instance of KeyStore", e);
+        }
+    }
+
+    @Provides
+    public KeyGenerator providesKeyGenerator() {
+        try {
+            return KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
+        } catch (NoSuchAlgorithmException | NoSuchProviderException e) {
+            throw new RuntimeException("Failed to get an instance of KeyGenerator", e);
+        }
+    }
+
+    @Provides
+    public Cipher providesCipher(KeyStore keyStore) {
+        try {
+            return Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/"
+                    + KeyProperties.BLOCK_MODE_CBC + "/"
+                    + KeyProperties.ENCRYPTION_PADDING_PKCS7);
+        } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
+            throw new RuntimeException("Failed to get an instance of Cipher", e);
+        }
+    }
+
+    @Provides
+    public InputMethodManager providesInputMethodManager(Context context) {
+        return (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
+    }
+
+    @Provides
+    public SharedPreferences providesSharedPreferences(Context context) {
+        return PreferenceManager.getDefaultSharedPreferences(context);
+    }
+}
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintUiHelper.java b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintUiHelper.java
new file mode 100644
index 0000000..92fcdb1
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/FingerprintUiHelper.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.example.android.fingerprintdialog;
+
+import com.google.common.annotations.VisibleForTesting;
+
+import android.hardware.fingerprint.FingerprintManager;
+import android.os.CancellationSignal;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import javax.inject.Inject;
+
+/**
+ * Small helper class to manage text/icon around fingerprint authentication UI.
+ */
+public class FingerprintUiHelper extends FingerprintManager.AuthenticationCallback {
+
+    @VisibleForTesting static final long ERROR_TIMEOUT_MILLIS = 1600;
+    @VisibleForTesting static final long SUCCESS_DELAY_MILLIS = 1300;
+
+    private final FingerprintManager mFingerprintManager;
+    private final ImageView mIcon;
+    private final TextView mErrorTextView;
+    private final Callback mCallback;
+    private CancellationSignal mCancellationSignal;
+
+    @VisibleForTesting boolean mSelfCancelled;
+
+    /**
+     * Builder class for {@link FingerprintUiHelper} in which injected fields from Dagger
+     * holds its fields and takes other arguments in the {@link #build} method.
+     */
+    public static class FingerprintUiHelperBuilder {
+        private final FingerprintManager mFingerPrintManager;
+
+        @Inject
+        public FingerprintUiHelperBuilder(FingerprintManager fingerprintManager) {
+            mFingerPrintManager = fingerprintManager;
+        }
+
+        public FingerprintUiHelper build(ImageView icon, TextView errorTextView, Callback callback) {
+            return new FingerprintUiHelper(mFingerPrintManager, icon, errorTextView,
+                    callback);
+        }
+    }
+
+    /**
+     * Constructor for {@link FingerprintUiHelper}. This method is expected to be called from
+     * only the {@link FingerprintUiHelperBuilder} class.
+     */
+    private FingerprintUiHelper(FingerprintManager fingerprintManager,
+            ImageView icon, TextView errorTextView, Callback callback) {
+        mFingerprintManager = fingerprintManager;
+        mIcon = icon;
+        mErrorTextView = errorTextView;
+        mCallback = callback;
+    }
+
+    public boolean isFingerprintAuthAvailable() {
+        return mFingerprintManager.isHardwareDetected()
+                && mFingerprintManager.hasEnrolledFingerprints();
+    }
+
+    public void startListening(FingerprintManager.CryptoObject cryptoObject) {
+        if (!isFingerprintAuthAvailable()) {
+            return;
+        }
+        mCancellationSignal = new CancellationSignal();
+        mSelfCancelled = false;
+        mFingerprintManager
+                .authenticate(cryptoObject, mCancellationSignal, 0 /* flags */, this, null);
+        mIcon.setImageResource(R.drawable.ic_fp_40px);
+    }
+
+    public void stopListening() {
+        if (mCancellationSignal != null) {
+            mSelfCancelled = true;
+            mCancellationSignal.cancel();
+            mCancellationSignal = null;
+        }
+    }
+
+    @Override
+    public void onAuthenticationError(int errMsgId, CharSequence errString) {
+        if (!mSelfCancelled) {
+            showError(errString);
+            mIcon.postDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    mCallback.onError();
+                }
+            }, ERROR_TIMEOUT_MILLIS);
+        }
+    }
+
+    @Override
+    public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
+        showError(helpString);
+    }
+
+    @Override
+    public void onAuthenticationFailed() {
+        showError(mIcon.getResources().getString(
+                R.string.fingerprint_not_recognized));
+    }
+
+    @Override
+    public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
+        mErrorTextView.removeCallbacks(mResetErrorTextRunnable);
+        mIcon.setImageResource(R.drawable.ic_fingerprint_success);
+        mErrorTextView.setTextColor(
+                mErrorTextView.getResources().getColor(R.color.success_color, null));
+        mErrorTextView.setText(
+                mErrorTextView.getResources().getString(R.string.fingerprint_success));
+        mIcon.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                mCallback.onAuthenticated();
+            }
+        }, SUCCESS_DELAY_MILLIS);
+    }
+
+    private void showError(CharSequence error) {
+        mIcon.setImageResource(R.drawable.ic_fingerprint_error);
+        mErrorTextView.setText(error);
+        mErrorTextView.setTextColor(
+                mErrorTextView.getResources().getColor(R.color.warning_color, null));
+        mErrorTextView.removeCallbacks(mResetErrorTextRunnable);
+        mErrorTextView.postDelayed(mResetErrorTextRunnable, ERROR_TIMEOUT_MILLIS);
+    }
+
+    @VisibleForTesting
+    Runnable mResetErrorTextRunnable = new Runnable() {
+        @Override
+        public void run() {
+            mErrorTextView.setTextColor(
+                    mErrorTextView.getResources().getColor(R.color.hint_color, null));
+            mErrorTextView.setText(
+                    mErrorTextView.getResources().getString(R.string.fingerprint_hint));
+            mIcon.setImageResource(R.drawable.ic_fp_40px);
+        }
+    };
+
+    public interface Callback {
+
+        void onAuthenticated();
+
+        void onError();
+    }
+}
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/InjectedApplication.java b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/InjectedApplication.java
new file mode 100644
index 0000000..b7075a9
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/InjectedApplication.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.example.android.fingerprintdialog;
+
+import android.app.Application;
+import android.util.Log;
+
+import dagger.ObjectGraph;
+
+/**
+ * The Application class of the sample which holds the ObjectGraph in Dagger and enables
+ * dependency injection.
+ */
+public class InjectedApplication extends Application {
+
+    private static final String TAG = InjectedApplication.class.getSimpleName();
+
+    private ObjectGraph mObjectGraph;
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        initObjectGraph(new FingerprintModule(this));
+    }
+
+    /**
+     * Initialize the Dagger module. Passing null or mock modules can be used for testing.
+     *
+     * @param module for Dagger
+     */
+    public void initObjectGraph(Object module) {
+        mObjectGraph = module != null ? ObjectGraph.create(module) : null;
+    }
+
+    public void inject(Object object) {
+        if (mObjectGraph == null) {
+            // This usually happens during tests.
+            Log.i(TAG, "Object graph is not initialized.");
+            return;
+        }
+        mObjectGraph.inject(object);
+    }
+
+}
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/MainActivity.java b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/MainActivity.java
new file mode 100644
index 0000000..d6892eb
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/MainActivity.java
@@ -0,0 +1,256 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.example.android.fingerprintdialog;
+
+import android.Manifest;
+import android.app.Activity;
+import android.app.KeyguardManager;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.hardware.fingerprint.FingerprintManager;
+import android.os.Bundle;
+import android.security.keystore.KeyGenParameterSpec;
+import android.security.keystore.KeyPermanentlyInvalidatedException;
+import android.security.keystore.KeyProperties;
+import android.util.Base64;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.io.IOException;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateException;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.KeyGenerator;
+import javax.crypto.SecretKey;
+import javax.inject.Inject;
+
+/**
+ * Main entry point for the sample, showing a backpack and "Purchase" button.
+ */
+public class MainActivity extends Activity {
+
+    private static final String TAG = MainActivity.class.getSimpleName();
+
+    private static final String DIALOG_FRAGMENT_TAG = "myFragment";
+    private static final String SECRET_MESSAGE = "Very secret message";
+    /** Alias for our key in the Android Key Store */
+    private static final String KEY_NAME = "my_key";
+
+    private static final int FINGERPRINT_PERMISSION_REQUEST_CODE = 0;
+
+    @Inject KeyguardManager mKeyguardManager;
+    @Inject FingerprintAuthenticationDialogFragment mFragment;
+    @Inject KeyStore mKeyStore;
+    @Inject KeyGenerator mKeyGenerator;
+    @Inject Cipher mCipher;
+    @Inject SharedPreferences mSharedPreferences;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        ((InjectedApplication) getApplication()).inject(this);
+
+        requestPermissions(new String[]{Manifest.permission.USE_FINGERPRINT},
+                FINGERPRINT_PERMISSION_REQUEST_CODE);
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] state) {
+        if (requestCode == FINGERPRINT_PERMISSION_REQUEST_CODE
+                && state[0] == PackageManager.PERMISSION_GRANTED) {
+            setContentView(R.layout.activity_main);
+            Button purchaseButton = (Button) findViewById(R.id.purchase_button);
+            if (!mKeyguardManager.isKeyguardSecure()) {
+                // Show a message that the user hasn't set up a fingerprint or lock screen.
+                Toast.makeText(this,
+                        "Secure lock screen hasn't set up.\n"
+                                + "Go to 'Settings -> Security -> Fingerprint' to set up a fingerprint",
+                        Toast.LENGTH_LONG).show();
+                purchaseButton.setEnabled(false);
+            }
+            if (!createKey()) {
+                purchaseButton.setEnabled(false);
+                return;
+            }
+            purchaseButton.setEnabled(true);
+            purchaseButton.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    findViewById(R.id.confirmation_message).setVisibility(View.GONE);
+                    findViewById(R.id.encrypted_message).setVisibility(View.GONE);
+
+                    // Set up the crypto object for later. The object will be authenticated by use
+                    // of the fingerprint.
+                    if (initCipher()) {
+
+                        // Show the fingerprint dialog. The user has the option to use the fingerprint with
+                        // crypto, or you can fall back to using a server-side verified password.
+                        mFragment.setCryptoObject(new FingerprintManager.CryptoObject(mCipher));
+                        boolean useFingerprintPreference = mSharedPreferences
+                                .getBoolean(getString(R.string.use_fingerprint_to_authenticate_key),
+                                        true);
+                        if (useFingerprintPreference) {
+                            mFragment.setStage(
+                                    FingerprintAuthenticationDialogFragment.Stage.FINGERPRINT);
+                        } else {
+                            mFragment.setStage(
+                                    FingerprintAuthenticationDialogFragment.Stage.PASSWORD);
+                        }
+                        mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
+                    } else {
+                        // This happens if the lock screen has been disabled or or a fingerprint got
+                        // enrolled. Thus show the dialog to authenticate with their password first
+                        // and ask the user if they want to authenticate with fingerprints in the
+                        // future
+                        mFragment.setCryptoObject(new FingerprintManager.CryptoObject(mCipher));
+                        mFragment.setStage(
+                                FingerprintAuthenticationDialogFragment.Stage.NEW_FINGERPRINT_ENROLLED);
+                        mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
+                    }
+                }
+            });
+        }
+    }
+
+    /**
+     * Initialize the {@link Cipher} instance with the created key in the {@link #createKey()}
+     * method.
+     *
+     * @return {@code true} if initialization is successful, {@code false} if the lock screen has
+     * been disabled or reset after the key was generated, or if a fingerprint got enrolled after
+     * the key was generated.
+     */
+    private boolean initCipher() {
+        try {
+            mKeyStore.load(null);
+            SecretKey key = (SecretKey) mKeyStore.getKey(KEY_NAME, null);
+            mCipher.init(Cipher.ENCRYPT_MODE, key);
+            return true;
+        } catch (KeyPermanentlyInvalidatedException e) {
+            return false;
+        } catch (KeyStoreException | CertificateException | UnrecoverableKeyException | IOException
+                | NoSuchAlgorithmException | InvalidKeyException e) {
+            throw new RuntimeException("Failed to init Cipher", e);
+        }
+    }
+
+    public void onPurchased(boolean withFingerprint) {
+        if (withFingerprint) {
+            // If the user has authenticated with fingerprint, verify that using cryptography and
+            // then show the confirmation message.
+            tryEncrypt();
+        } else {
+            // Authentication happened with backup password. Just show the confirmation message.
+            showConfirmation(null);
+        }
+    }
+
+    // Show confirmation, if fingerprint was used show crypto information.
+    private void showConfirmation(byte[] encrypted) {
+        findViewById(R.id.confirmation_message).setVisibility(View.VISIBLE);
+        if (encrypted != null) {
+            TextView v = (TextView) findViewById(R.id.encrypted_message);
+            v.setVisibility(View.VISIBLE);
+            v.setText(Base64.encodeToString(encrypted, 0 /* flags */));
+        }
+    }
+
+    /**
+     * Tries to encrypt some data with the generated key in {@link #createKey} which is
+     * only works if the user has just authenticated via fingerprint.
+     */
+    private void tryEncrypt() {
+        try {
+            byte[] encrypted = mCipher.doFinal(SECRET_MESSAGE.getBytes());
+            showConfirmation(encrypted);
+        } catch (BadPaddingException | IllegalBlockSizeException e) {
+            Toast.makeText(this, "Failed to encrypt the data with the generated key. "
+                    + "Retry the purchase", Toast.LENGTH_LONG).show();
+            Log.e(TAG, "Failed to encrypt the data with the generated key." + e.getMessage());
+        }
+    }
+
+    /**
+     * Creates a symmetric key in the Android Key Store which can only be used after the user has
+     * authenticated with fingerprint.
+     *
+     * @return {@code true} if key is created successful, {@code false} otherwise such as when no
+     * fingerprints are registered.
+     */
+    public boolean createKey() {
+        // The enrolling flow for fingerprint. This is where you ask the user to set up fingerprint
+        // for your flow. Use of keys is necessary if you need to know if the set of
+        // enrolled fingerprints has changed.
+        try {
+            mKeyStore.load(null);
+            // Set the alias of the entry in Android KeyStore where the key will appear
+            // and the constrains (purposes) in the constructor of the Builder
+            mKeyGenerator.init(new KeyGenParameterSpec.Builder(KEY_NAME,
+                    KeyProperties.PURPOSE_ENCRYPT |
+                            KeyProperties.PURPOSE_DECRYPT)
+                    .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
+                            // Require the user to authenticate with a fingerprint to authorize every use
+                            // of the key
+                    .setUserAuthenticationRequired(true)
+                    .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
+                    .build());
+            mKeyGenerator.generateKey();
+            return true;
+        } catch (IllegalStateException e) {
+            // This happens when no fingerprints are registered.
+            Toast.makeText(this,
+                    "Go to 'Settings -> Security -> Fingerprint' and register at least one fingerprint",
+                    Toast.LENGTH_LONG).show();
+            return false;
+        } catch (NoSuchAlgorithmException | InvalidAlgorithmParameterException
+                | CertificateException | IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.menu_main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        int id = item.getItemId();
+
+        if (id == R.id.action_settings) {
+            Intent intent = new Intent(this, SettingsActivity.class);
+            startActivity(intent);
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+}
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/SettingsActivity.java b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/SettingsActivity.java
new file mode 100644
index 0000000..08b3911
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/java/com/example/android/fingerprintdialog/SettingsActivity.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.example.android.fingerprintdialog;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.preference.PreferenceFragment;
+
+public class SettingsActivity extends Activity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Display the fragment as the main content.
+        getFragmentManager().beginTransaction().replace(android.R.id.content,
+                new SettingsFragment()).commit();
+    }
+
+    /**
+     * Fragment for settings.
+     */
+    public static class SettingsFragment extends PreferenceFragment {
+
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            addPreferencesFromResource(R.xml.preferences);
+        }
+    }
+}
+
+
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-hdpi/ic_fp_40px.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-hdpi/ic_fp_40px.png
new file mode 100644
index 0000000..48ebd8a
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-hdpi/ic_fp_40px.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-mdpi/ic_fp_40px.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-mdpi/ic_fp_40px.png
new file mode 100644
index 0000000..122f442
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-mdpi/ic_fp_40px.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-nodpi/android_robot.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-nodpi/android_robot.png
new file mode 100644
index 0000000..40bf934
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-nodpi/android_robot.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xhdpi/ic_fp_40px.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xhdpi/ic_fp_40px.png
new file mode 100644
index 0000000..e1c9590
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xhdpi/ic_fp_40px.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xxhdpi/ic_fp_40px.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xxhdpi/ic_fp_40px.png
new file mode 100644
index 0000000..f7e8724
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xxhdpi/ic_fp_40px.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xxxhdpi/ic_fp_40px.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xxxhdpi/ic_fp_40px.png
new file mode 100644
index 0000000..0fb8545
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable-xxxhdpi/ic_fp_40px.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/card.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/card.xml
new file mode 100644
index 0000000..691a4c5
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/card.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <solid
+        android:color="#fefefe"/>
+
+    <corners
+        android:radius="2dp" />
+</shape>
\ No newline at end of file
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/ic_fingerprint_error.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/ic_fingerprint_error.xml
new file mode 100644
index 0000000..be46116
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/ic_fingerprint_error.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="40.0dp"
+        android:height="40.0dp"
+        android:viewportWidth="40.0"
+        android:viewportHeight="40.0">
+    <path
+        android:pathData="M20.0,0.0C8.96,0.0 0.0,8.95 0.0,20.0s8.96,20.0 20.0,20.0c11.04,0.0 20.0,-8.95 20.0,-20.0S31.04,0.0 20.0,0.0z"
+        android:fillColor="#F4511E"/>
+    <path
+        android:pathData="M21.33,29.33l-2.67,0.0l0.0,-2.67l2.67,0.0L21.33,29.33zM21.33,22.67l-2.67,0.0l0.0,-12.0l2.67,0.0L21.33,22.67z"
+        android:fillColor="#FFFFFF"/>
+</vector>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/ic_fingerprint_success.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/ic_fingerprint_success.xml
new file mode 100644
index 0000000..261f3e7
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/drawable/ic_fingerprint_success.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="40.0dp"
+        android:height="40.0dp"
+        android:viewportWidth="40.0"
+        android:viewportHeight="40.0">
+    <path
+        android:pathData="M20.0,20.0m-20.0,0.0a20.0,20.0 0.0,1.0 1.0,40.0 0.0a20.0,20.0 0.0,1.0 1.0,-40.0 0.0"
+        android:fillColor="#009688"/>
+    <path
+        android:pathData="M11.2,21.41l1.63,-1.619999 4.17,4.169998 10.59,-10.589999 1.619999,1.63 -12.209999,12.209999z"
+        android:fillColor="#FFFFFF"/>
+</vector>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..8f30557
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<ScrollView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+        <ImageView
+                android:layout_width="150dp"
+                android:layout_height="150dp"
+                android:layout_marginTop="32dp"
+                android:layout_marginBottom="32dp"
+                android:layout_gravity="center_horizontal"
+                android:scaleType="fitCenter"
+                android:src="@drawable/android_robot"/>
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginEnd="8dp"
+                android:orientation="vertical"
+                android:background="@drawable/card"
+                android:elevation="4dp"
+                android:paddingTop="16dp"
+                android:paddingBottom="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp">
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="@android:style/TextAppearance.Material.Headline"
+                    android:text="@string/item_title"/>
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                    android:textColor="?android:attr/colorAccent"
+                    android:text="@string/item_price"/>
+
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="16dp"
+                    android:textAppearance="@android:style/TextAppearance.Material.Body1"
+                    android:textColor="?android:attr/textColorSecondary"
+                    android:text="@string/item_description"/>
+
+        </LinearLayout>
+        <Button style="@android:style/Widget.Material.Button.Colored"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:layout_marginEnd="4dp"
+                android:layout_gravity="end"
+                android:textColor="?android:attr/textColorPrimaryInverse"
+                android:text="@string/purchase"
+                android:id="@+id/purchase_button"
+                android:layout_alignParentEnd="true"/>
+
+        <TextView
+                android:id="@+id/confirmation_message"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                android:textColor="?android:attr/colorAccent"
+                android:text="@string/purchase_done"
+                android:visibility="gone"/>
+
+        <TextView
+                android:id="@+id/encrypted_message"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:textAppearance="@android:style/TextAppearance.Material.Body2"
+                android:textColor="?android:attr/colorAccent"
+                android:text="@string/purchase_done"
+                android:visibility="gone"/>
+    </LinearLayout>
+</ScrollView>
\ No newline at end of file
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_backup.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_backup.xml
new file mode 100644
index 0000000..2be05b1
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_backup.xml
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/backup_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingTop="16dp"
+    android:paddingBottom="8dp">
+
+    <FrameLayout
+        android:id="@+id/description"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentTop="true"
+        android:layout_alignParentStart="true"
+        android:layout_marginStart="24dp"
+        android:layout_marginEnd="24dp"
+        >
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textAppearance="@android:style/TextAppearance.Material.Subhead"
+            android:text="@string/password_description"
+            android:id="@+id/password_description"
+            android:textColor="?android:attr/textColorSecondary" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textAppearance="@android:style/TextAppearance.Material.Subhead"
+            android:text="@string/new_fingerprint_enrolled_description"
+            android:id="@+id/new_fingerprint_enrolled_description"
+            android:visibility="gone"
+            android:textColor="?android:attr/textColorSecondary" />
+    </FrameLayout>
+
+    <EditText
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:inputType="textPassword"
+        android:ems="10"
+        android:hint="@string/password"
+        android:imeOptions="actionGo"
+        android:id="@+id/password"
+        android:layout_below="@+id/description"
+        android:layout_marginTop="16dp"
+        android:layout_marginStart="20dp"
+        android:layout_marginEnd="20dp"
+        android:layout_alignParentStart="true" />
+
+    <CheckBox
+        android:id="@+id/use_fingerprint_in_future_check"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/password"
+        android:layout_alignParentStart="true"
+        android:layout_marginTop="16dp"
+        android:layout_marginStart="20dp"
+        android:layout_marginEnd="20dp"
+        android:checked="true"
+        android:visibility="gone"
+        android:text="@string/use_fingerprint_in_future" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_container.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_container.xml
new file mode 100644
index 0000000..08bb1bb
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_container.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <FrameLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content">
+
+        <include layout="@layout/fingerprint_dialog_content" />
+
+        <include
+            layout="@layout/fingerprint_dialog_backup"
+            android:visibility="gone" />
+
+    </FrameLayout>
+
+    <LinearLayout
+        android:id="@+id/buttonPanel"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:paddingStart="12dp"
+        android:paddingEnd="12dp"
+        android:paddingTop="4dp"
+        android:paddingBottom="4dp"
+        android:gravity="bottom"
+        style="?android:attr/buttonBarStyle">
+
+        <Space
+            android:id="@+id/spacer"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:visibility="invisible" />
+        <Button
+            android:id="@+id/cancel_button"
+            style="?android:attr/buttonBarNegativeButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
+
+        <Button
+            android:id="@+id/second_dialog_button"
+            style="?android:attr/buttonBarPositiveButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_content.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_content.xml
new file mode 100644
index 0000000..3929eba
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/layout/fingerprint_dialog_content.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/fingerprint_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="8dp"
+    android:paddingStart="24dp"
+    android:paddingEnd="24dp"
+    android:paddingTop="16dp">
+
+    <TextView
+        android:id="@+id/fingerprint_description"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true"
+        android:text="@string/fingerprint_description"
+        android:textAppearance="@android:style/TextAppearance.Material.Subhead"
+        android:textColor="?android:attr/textColorSecondary"/>
+
+
+    <ImageView
+        android:id="@+id/fingerprint_icon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_below="@+id/fingerprint_description"
+        android:layout_marginTop="20dp"
+        android:src="@drawable/ic_fp_40px" />
+
+    <TextView
+        android:id="@+id/fingerprint_status"
+        style="@android:style/TextAppearance.Material.Body1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignBottom="@+id/fingerprint_icon"
+        android:layout_alignTop="@+id/fingerprint_icon"
+        android:layout_marginStart="16dp"
+        android:layout_toEndOf="@+id/fingerprint_icon"
+        android:gravity="center_vertical"
+        android:text="@string/fingerprint_hint"
+        android:textColor="@color/hint_color" />
+</RelativeLayout>
\ No newline at end of file
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/menu/menu_main.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/menu/menu_main.xml
new file mode 100644
index 0000000..73f5e89
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/menu/menu_main.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
+    <item android:id="@+id/action_settings" android:title="@string/action_settings"
+        android:orderInCategory="100" android:showAsAction="never" />
+</menu>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..68c473a
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..fd7e5f6
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..106c0d3
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..b319beb
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..4dc0ddf
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..f3545f5
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">Fingerprint Dialog Sample</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+This sample demonstrates how you can use registered fingerprints to authenticate the user
+before proceeding some actions such as purchasing an item.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/colors.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/colors.xml
new file mode 100644
index 0000000..a24f3c8
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<resources>
+    <color name="warning_color">#f4511e</color>
+    <color name="hint_color">#42000000</color>
+    <color name="success_color">#009688</color>
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/strings.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..9f5a6fd
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/strings.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<resources>
+    <string name="action_settings">Settings</string>
+    <string name="cancel">Cancel</string>
+    <string name="use_password">Use password</string>
+    <string name="sign_in">Sign in</string>
+    <string name="ok">Ok</string>
+    <string name="password">Password</string>
+    <string name="fingerprint_description">Confirm fingerprint to continue</string>
+    <string name="fingerprint_hint">Touch sensor</string>
+    <string name="password_description">Enter your store password to continue</string>
+    <string name="purchase">Purchase</string>
+    <string name="fingerprint_not_recognized">Fingerprint not recognized. Try again</string>
+    <string name="fingerprint_success">Fingerprint recognized</string>
+    <string name="item_title">White Mesh Pluto Backpack</string>
+    <string name="item_price">$62.68</string>
+    <string name="item_description">Mesh backpack in white. Black textile trim throughout.</string>
+    <string name="purchase_done">Purchase successful</string>
+    <string name="new_fingerprint_enrolled_description">A new fingerprint was added to this device, so your password is required.</string>
+    <string name="use_fingerprint_in_future">Use fingerprint in the future</string>
+    <string name="use_fingerprint_to_authenticate_title">Use fingerprint to authenticate</string>
+    <string name="use_fingerprint_to_authenticate_key" >use_fingerprint_to_authenticate_key</string>
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/FingerprintDialog/Application/src/main/res/xml/preferences.xml b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/xml/preferences.xml
new file mode 100644
index 0000000..761391d
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/Application/src/main/res/xml/preferences.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<PreferenceScreen  xmlns:android="http://schemas.android.com/apk/res/android">
+    <CheckBoxPreference
+        android:key="@string/use_fingerprint_to_authenticate_key"
+        android:title="@string/use_fingerprint_to_authenticate_title"
+        android:persistent="true"
+        android:defaultValue="true" />
+</PreferenceScreen>
\ No newline at end of file
diff --git a/prebuilts/gradle/FingerprintDialog/CONTRIBUTING.md b/prebuilts/gradle/FingerprintDialog/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/FingerprintDialog/LICENSE b/prebuilts/gradle/FingerprintDialog/LICENSE
new file mode 100644
index 0000000..4f22946
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/LICENSE
@@ -0,0 +1,647 @@
+Apache License
+--------------
+
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
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+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
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diff --git a/prebuilts/gradle/FingerprintDialog/README.md b/prebuilts/gradle/FingerprintDialog/README.md
new file mode 100644
index 0000000..d2f2300
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/README.md
@@ -0,0 +1,83 @@
+
+Android Fingerprint Dialog Sample Sample
+===================================
+
+A sample that demonstrates to use registered fingerprints to authenticate the user in your app
+
+Introduction
+------------
+
+This sample demonstrates how you can use registered fingerprints in your app to authenticate the user
+before proceeding some actions such as purchasing an item.
+
+First you need to create a symmetric key in the Android Key Store using [KeyGenerator][1]
+which can be only be used after the user has authenticated with fingerprint and pass
+a [KeyGeneratorSpec][2].
+
+By setting [KeyGeneratorSpec.Builder.setUserAuthenticationRequired][3] to true, you can permit the
+use of the key only after the user authenticate it including when authenticated with the user's
+fingerprint.
+
+Then start listening to a fingerprint on the fingerprint sensor by calling
+[FingerprintManager.authenticate][4] with a [Cipher][5] initialized with the symmetric key created.
+Or alternatively you can fall back to server-side verified password as an authenticator.
+
+Once the fingerprint (or password) is verified, the
+[FingerprintManager.AuthenticationCallback#onAuthenticationSucceeded()][6] callback is called.
+
+[1]: https://developer.android.com/reference/javax/crypto/KeyGenerator.html
+[2]: https://developer.android.com/reference/android/security/KeyGenParameterSpec.html
+[3]: https://developer.android.com/reference/android/security/KeyGenParameterSpec.Builder#setUserAuthenticationRequired().html
+[4]: https://developer.android.com/reference/android/hardware/FingerprintManager#authenticate().html
+[5]: https://developer.android.com/reference/javax/crypto/Cipher.html
+[6]: https://developer.android.com/reference/android/hardware/FingerprintManager.AuthenticationCallback#onAuthenticationSucceeded().html
+
+Pre-requisites
+--------------
+
+- Android SDK vandroid-MNC
+- Android Build Tools v22.0.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/1-purchase-screen.png" height="400" alt="Screenshot"/> <img src="screenshots/2-fingerprint-dialog.png" height="400" alt="Screenshot"/> <img src="screenshots/3-fingerprint-authenticated.png" height="400" alt="Screenshot"/> <img src="screenshots/4-new-fingerprint-enrolled.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-Fingerprint Dialog Sample
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/FingerprintDialog/build.gradle b/prebuilts/gradle/FingerprintDialog/build.gradle
new file mode 100644
index 0000000..1dac6de
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/FingerprintDialog/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/FingerprintDialog/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/FingerprintDialog/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..f943b1e
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Apr 27 11:28:32 JST 2015
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-2.2.1-all.zip
diff --git a/prebuilts/gradle/FingerprintDialog/gradlew b/prebuilts/gradle/FingerprintDialog/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/FingerprintDialog/gradlew.bat b/prebuilts/gradle/FingerprintDialog/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/FingerprintDialog/screenshots/1-purchase-screen.png b/prebuilts/gradle/FingerprintDialog/screenshots/1-purchase-screen.png
new file mode 100644
index 0000000..0bf03bd
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/screenshots/1-purchase-screen.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/screenshots/2-fingerprint-dialog.png b/prebuilts/gradle/FingerprintDialog/screenshots/2-fingerprint-dialog.png
new file mode 100644
index 0000000..5e681f9
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/screenshots/2-fingerprint-dialog.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/screenshots/3-fingerprint-authenticated.png b/prebuilts/gradle/FingerprintDialog/screenshots/3-fingerprint-authenticated.png
new file mode 100644
index 0000000..d485b1d
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/screenshots/3-fingerprint-authenticated.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/screenshots/4-new-fingerprint-enrolled.png b/prebuilts/gradle/FingerprintDialog/screenshots/4-new-fingerprint-enrolled.png
new file mode 100644
index 0000000..7dcf080
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/screenshots/4-new-fingerprint-enrolled.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/screenshots/big-icon.png b/prebuilts/gradle/FingerprintDialog/screenshots/big-icon.png
new file mode 100644
index 0000000..9e32334
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/screenshots/big-icon.png
Binary files differ
diff --git a/prebuilts/gradle/FingerprintDialog/settings.gradle b/prebuilts/gradle/FingerprintDialog/settings.gradle
new file mode 100644
index 0000000..9464a35
--- /dev/null
+++ b/prebuilts/gradle/FingerprintDialog/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/Flashlight/Wearable/build.gradle b/prebuilts/gradle/Flashlight/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/Flashlight/Wearable/build.gradle
+++ b/prebuilts/gradle/Flashlight/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/FloatingActionButtonBasic/Application/build.gradle b/prebuilts/gradle/FloatingActionButtonBasic/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/FloatingActionButtonBasic/Application/build.gradle
+++ b/prebuilts/gradle/FloatingActionButtonBasic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/FloatingActionButtonBasic/NOTICE b/prebuilts/gradle/FloatingActionButtonBasic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/FloatingActionButtonBasic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Geofencing/Application/build.gradle b/prebuilts/gradle/Geofencing/Application/build.gradle
index dc3fcf4..5899f63 100644
--- a/prebuilts/gradle/Geofencing/Application/build.gradle
+++ b/prebuilts/gradle/Geofencing/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Geofencing/NOTICE b/prebuilts/gradle/Geofencing/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/Geofencing/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Geofencing/Wearable/build.gradle b/prebuilts/gradle/Geofencing/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/Geofencing/Wearable/build.gradle
+++ b/prebuilts/gradle/Geofencing/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Geofencing/Wearable/src/main/java/com/example/android/wearable/geofencing/HomeListenerService.java b/prebuilts/gradle/Geofencing/Wearable/src/main/java/com/example/android/wearable/geofencing/HomeListenerService.java
index 415fc46..251360c 100644
--- a/prebuilts/gradle/Geofencing/Wearable/src/main/java/com/example/android/wearable/geofencing/HomeListenerService.java
+++ b/prebuilts/gradle/Geofencing/Wearable/src/main/java/com/example/android/wearable/geofencing/HomeListenerService.java
@@ -79,7 +79,6 @@
                 postNotificationForGeofenceId(geofenceId, event.getDataItem().getUri());
             }
         }
-        dataEvents.close();
     }
 
     /**
diff --git a/prebuilts/gradle/GridViewPager/Wearable/build.gradle b/prebuilts/gradle/GridViewPager/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/GridViewPager/Wearable/build.gradle
+++ b/prebuilts/gradle/GridViewPager/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/HdrViewfinder/Application/build.gradle b/prebuilts/gradle/HdrViewfinder/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/HdrViewfinder/Application/build.gradle
+++ b/prebuilts/gradle/HdrViewfinder/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/HdrViewfinder/NOTICE b/prebuilts/gradle/HdrViewfinder/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/HdrViewfinder/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/HorizontalPaging/Application/build.gradle b/prebuilts/gradle/HorizontalPaging/Application/build.gradle
index 168569b..36a255f 100644
--- a/prebuilts/gradle/HorizontalPaging/Application/build.gradle
+++ b/prebuilts/gradle/HorizontalPaging/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/HorizontalPaging/NOTICE b/prebuilts/gradle/HorizontalPaging/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/HorizontalPaging/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/ImmersiveMode/Application/build.gradle b/prebuilts/gradle/ImmersiveMode/Application/build.gradle
index 168569b..36a255f 100644
--- a/prebuilts/gradle/ImmersiveMode/Application/build.gradle
+++ b/prebuilts/gradle/ImmersiveMode/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ImmersiveMode/NOTICE b/prebuilts/gradle/ImmersiveMode/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ImmersiveMode/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Interpolator/Application/build.gradle b/prebuilts/gradle/Interpolator/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/Interpolator/Application/build.gradle
+++ b/prebuilts/gradle/Interpolator/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Interpolator/NOTICE b/prebuilts/gradle/Interpolator/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/Interpolator/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/JobScheduler/Application/build.gradle b/prebuilts/gradle/JobScheduler/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/JobScheduler/Application/build.gradle
+++ b/prebuilts/gradle/JobScheduler/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/JobScheduler/NOTICE b/prebuilts/gradle/JobScheduler/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/JobScheduler/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/JumpingJack/Wearable/build.gradle b/prebuilts/gradle/JumpingJack/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/JumpingJack/Wearable/build.gradle
+++ b/prebuilts/gradle/JumpingJack/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/LNotifications/Application/build.gradle b/prebuilts/gradle/LNotifications/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/LNotifications/Application/build.gradle
+++ b/prebuilts/gradle/LNotifications/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/LNotifications/NOTICE b/prebuilts/gradle/LNotifications/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/LNotifications/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/MediaBrowserService/Application/build.gradle b/prebuilts/gradle/MediaBrowserService/Application/build.gradle
index 81bc728..2abb4fd 100644
--- a/prebuilts/gradle/MediaBrowserService/Application/build.gradle
+++ b/prebuilts/gradle/MediaBrowserService/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/MediaEffects/Application/build.gradle b/prebuilts/gradle/MediaEffects/Application/build.gradle
index 9f7c8dc..c9fe712 100644
--- a/prebuilts/gradle/MediaEffects/Application/build.gradle
+++ b/prebuilts/gradle/MediaEffects/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/MediaEffects/NOTICE b/prebuilts/gradle/MediaEffects/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/MediaEffects/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/MediaRecorder/Application/build.gradle b/prebuilts/gradle/MediaRecorder/Application/build.gradle
index c6cf83d..c45e507 100644
--- a/prebuilts/gradle/MediaRecorder/Application/build.gradle
+++ b/prebuilts/gradle/MediaRecorder/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/MediaRecorder/NOTICE b/prebuilts/gradle/MediaRecorder/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/MediaRecorder/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/MediaRouter/Application/build.gradle b/prebuilts/gradle/MediaRouter/Application/build.gradle
index eade9a7..d3377bd 100644
--- a/prebuilts/gradle/MediaRouter/Application/build.gradle
+++ b/prebuilts/gradle/MediaRouter/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/MediaRouter/NOTICE b/prebuilts/gradle/MediaRouter/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/MediaRouter/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/MessagingService/Application/build.gradle b/prebuilts/gradle/MessagingService/Application/build.gradle
index 81bc728..2abb4fd 100644
--- a/prebuilts/gradle/MessagingService/Application/build.gradle
+++ b/prebuilts/gradle/MessagingService/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/NavigationDrawer/Application/build.gradle b/prebuilts/gradle/NavigationDrawer/Application/build.gradle
index 1236a88..1c2c668 100644
--- a/prebuilts/gradle/NavigationDrawer/Application/build.gradle
+++ b/prebuilts/gradle/NavigationDrawer/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/NavigationDrawer/NOTICE b/prebuilts/gradle/NavigationDrawer/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/NavigationDrawer/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/NetworkConnect/Application/build.gradle b/prebuilts/gradle/NetworkConnect/Application/build.gradle
index 211c607..d7467d8 100644
--- a/prebuilts/gradle/NetworkConnect/Application/build.gradle
+++ b/prebuilts/gradle/NetworkConnect/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/NetworkConnect/NOTICE b/prebuilts/gradle/NetworkConnect/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/NetworkConnect/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/NfcProvisioning/Application/build.gradle b/prebuilts/gradle/NfcProvisioning/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/NfcProvisioning/Application/build.gradle
+++ b/prebuilts/gradle/NfcProvisioning/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/NfcProvisioning/NOTICE b/prebuilts/gradle/NfcProvisioning/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/NfcProvisioning/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Notifications/Application/build.gradle b/prebuilts/gradle/Notifications/Application/build.gradle
index 86f88ca..b51c137 100644
--- a/prebuilts/gradle/Notifications/Application/build.gradle
+++ b/prebuilts/gradle/Notifications/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Notifications/NOTICE b/prebuilts/gradle/Notifications/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/Notifications/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Notifications/Wearable/build.gradle b/prebuilts/gradle/Notifications/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/Notifications/Wearable/build.gradle
+++ b/prebuilts/gradle/Notifications/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/PdfRendererBasic/Application/build.gradle b/prebuilts/gradle/PdfRendererBasic/Application/build.gradle
index c0576f7..a1a9511 100644
--- a/prebuilts/gradle/PdfRendererBasic/Application/build.gradle
+++ b/prebuilts/gradle/PdfRendererBasic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/PdfRendererBasic/NOTICE b/prebuilts/gradle/PdfRendererBasic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/PdfRendererBasic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/PermissionRequest/Application/build.gradle b/prebuilts/gradle/PermissionRequest/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/PermissionRequest/Application/build.gradle
+++ b/prebuilts/gradle/PermissionRequest/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/PermissionRequest/NOTICE b/prebuilts/gradle/PermissionRequest/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/PermissionRequest/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Quiz/Application/build.gradle b/prebuilts/gradle/Quiz/Application/build.gradle
index 86f88ca..b51c137 100644
--- a/prebuilts/gradle/Quiz/Application/build.gradle
+++ b/prebuilts/gradle/Quiz/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Quiz/Application/src/main/java/com/example/android/wearable/quiz/MainActivity.java b/prebuilts/gradle/Quiz/Application/src/main/java/com/example/android/wearable/quiz/MainActivity.java
index 855fcd6..de8eb74 100644
--- a/prebuilts/gradle/Quiz/Application/src/main/java/com/example/android/wearable/quiz/MainActivity.java
+++ b/prebuilts/gradle/Quiz/Application/src/main/java/com/example/android/wearable/quiz/MainActivity.java
@@ -325,8 +325,8 @@
 
     @Override
     public void onDataChanged(DataEventBuffer dataEvents) {
+        // Need to freeze the dataEvents so they will exist later on the UI thread
         final List<DataEvent> events = FreezableUtils.freezeIterable(dataEvents);
-        dataEvents.close();
         runOnUiThread(new Runnable() {
             @Override
             public void run() {
@@ -447,9 +447,7 @@
                         public void onResult(DataItemBuffer result) {
                             try {
                                 if (result.getStatus().isSuccess()) {
-                                    List<DataItem> dataItemList = FreezableUtils
-                                            .freezeIterable(result);
-                                    resetDataItems(dataItemList);
+                                    resetDataItems(result);
                                 } else {
                                     if (Log.isLoggable(TAG, Log.DEBUG)) {
                                         Log.d(TAG, "Reset quiz: failed to get Data Items to reset");
@@ -470,7 +468,7 @@
         mNumSkipped = 0;
     }
 
-    private void resetDataItems(List<DataItem> dataItemList) {
+    private void resetDataItems(DataItemBuffer dataItemList) {
         if (mGoogleApiClient.isConnected()) {
             for (final DataItem dataItem : dataItemList) {
                 final Uri dataItemUri = dataItem.getUri();
diff --git a/prebuilts/gradle/Quiz/NOTICE b/prebuilts/gradle/Quiz/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/Quiz/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Quiz/Wearable/build.gradle b/prebuilts/gradle/Quiz/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/Quiz/Wearable/build.gradle
+++ b/prebuilts/gradle/Quiz/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/Quiz/Wearable/src/main/java/com/example/android/wearable/quiz/QuizListenerService.java b/prebuilts/gradle/Quiz/Wearable/src/main/java/com/example/android/wearable/quiz/QuizListenerService.java
index 95bedf0..5a4b906 100644
--- a/prebuilts/gradle/Quiz/Wearable/src/main/java/com/example/android/wearable/quiz/QuizListenerService.java
+++ b/prebuilts/gradle/Quiz/Wearable/src/main/java/com/example/android/wearable/quiz/QuizListenerService.java
@@ -40,7 +40,6 @@
 
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.api.GoogleApiClient;
-import com.google.android.gms.common.data.FreezableUtils;
 import com.google.android.gms.wearable.DataEvent;
 import com.google.android.gms.wearable.DataEventBuffer;
 import com.google.android.gms.wearable.DataItem;
@@ -80,9 +79,6 @@
 
     @Override
     public void onDataChanged(DataEventBuffer dataEvents) {
-        final List<DataEvent> events = FreezableUtils.freezeIterable(dataEvents);
-        dataEvents.close();
-
         GoogleApiClient googleApiClient = new GoogleApiClient.Builder(this)
                 .addApi(Wearable.API)
                 .build();
@@ -94,7 +90,7 @@
             return;
         }
 
-        for (DataEvent event : events) {
+        for (DataEvent event : dataEvents) {
             if (event.getType() == DataEvent.TYPE_CHANGED) {
                 DataItem dataItem = event.getDataItem();
                 DataMap dataMap = DataMapItem.fromDataItem(dataItem).getDataMap();
diff --git a/prebuilts/gradle/RecipeAssistant/Application/build.gradle b/prebuilts/gradle/RecipeAssistant/Application/build.gradle
index 3a94103..054db59 100644
--- a/prebuilts/gradle/RecipeAssistant/Application/build.gradle
+++ b/prebuilts/gradle/RecipeAssistant/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/RecipeAssistant/NOTICE b/prebuilts/gradle/RecipeAssistant/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/RecipeAssistant/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/RecyclerView/Application/build.gradle b/prebuilts/gradle/RecyclerView/Application/build.gradle
index 68e606a..8675814 100644
--- a/prebuilts/gradle/RecyclerView/Application/build.gradle
+++ b/prebuilts/gradle/RecyclerView/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/RecyclerView/NOTICE b/prebuilts/gradle/RecyclerView/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/RecyclerView/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/RenderScriptIntrinsic/Application/build.gradle b/prebuilts/gradle/RenderScriptIntrinsic/Application/build.gradle
index d285812..0dd5383 100644
--- a/prebuilts/gradle/RenderScriptIntrinsic/Application/build.gradle
+++ b/prebuilts/gradle/RenderScriptIntrinsic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/RenderScriptIntrinsic/NOTICE b/prebuilts/gradle/RenderScriptIntrinsic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/RenderScriptIntrinsic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/RepeatingAlarm/Application/build.gradle b/prebuilts/gradle/RepeatingAlarm/Application/build.gradle
index 168569b..36a255f 100644
--- a/prebuilts/gradle/RepeatingAlarm/Application/build.gradle
+++ b/prebuilts/gradle/RepeatingAlarm/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/RepeatingAlarm/NOTICE b/prebuilts/gradle/RepeatingAlarm/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/RepeatingAlarm/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/RevealEffectBasic/Application/build.gradle b/prebuilts/gradle/RevealEffectBasic/Application/build.gradle
index cd4874e..016cf60 100644
--- a/prebuilts/gradle/RevealEffectBasic/Application/build.gradle
+++ b/prebuilts/gradle/RevealEffectBasic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/RevealEffectBasic/NOTICE b/prebuilts/gradle/RevealEffectBasic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/RevealEffectBasic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/RuntimePermissions/.google/packaging.yaml b/prebuilts/gradle/RuntimePermissions/.google/packaging.yaml
new file mode 100644
index 0000000..ae0866a
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/.google/packaging.yaml
@@ -0,0 +1,18 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFT
+technologies: [Android]
+categories:   [System]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-RuntimePermissions
+level:        BEGINNER
+icon:         screenshots/big_icon.png
+apiRefs:
+    - android:android.app.Activity
+    - android:android.Manifest.permission
+license: apache2
diff --git a/prebuilts/gradle/RuntimePermissions/Application/build.gradle b/prebuilts/gradle/RuntimePermissions/Application/build.gradle
new file mode 100644
index 0000000..3f1bc93
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/build.gradle
@@ -0,0 +1,74 @@
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.2.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+dependencies {
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+    compile 'com.android.support:appcompat-v7:21.+'
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion "android-MNC"
+    buildToolsVersion "22.0.1"
+
+    defaultConfig {
+        minSdkVersion "MNC"
+        targetSdkVersion "MNC"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..050b051
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.system.runtimepermissions" >
+
+    <!-- BEGIN_INCLUDE(manifest) -->
+
+    <!-- Note that all required permissions are declared here in the Android manifest.
+     On Android M and above, use of these permissions is only requested at run time. -->
+    <uses-permission android:name="android.permission.CAMERA"/>
+
+    <!-- The following permissions are only requested if the device is on M or above.
+     On older platforms these permissions are not requested and will not be available. -->
+    <uses-permission-sdk-m android:name="android.permission.READ_CONTACTS" />
+    <uses-permission-sdk-m android:name="android.permission.WRITE_CONTACTS" />
+
+    <!-- END_INCLUDE(manifest) -->
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+    </application>
+
+</manifest>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
new file mode 100644
index 0000000..3228927
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
@@ -0,0 +1,52 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.common.activities;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
+
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogWrapper;
+
+/**
+ * Base launcher activity, to handle most of the common plumbing for samples.
+ */
+public class SampleActivityBase extends FragmentActivity {
+
+    public static final String TAG = "SampleActivityBase";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    protected  void onStart() {
+        super.onStart();
+        initializeLogging();
+    }
+
+    /** Set up targets to receive log data */
+    public void initializeLogging() {
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        // Wraps Android's native log framework
+        LogWrapper logWrapper = new LogWrapper();
+        Log.setLogNode(logWrapper);
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/Log.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/Log.java
new file mode 100644
index 0000000..17503c5
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/Log.java
@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Helper class for a list (or tree) of LoggerNodes.
+ *
+ * <p>When this is set as the head of the list,
+ * an instance of it can function as a drop-in replacement for {@link android.util.Log}.
+ * Most of the methods in this class server only to map a method call in Log to its equivalent
+ * in LogNode.</p>
+ */
+public class Log {
+    // Grabbing the native values from Android's native logging facilities,
+    // to make for easy migration and interop.
+    public static final int NONE = -1;
+    public static final int VERBOSE = android.util.Log.VERBOSE;
+    public static final int DEBUG = android.util.Log.DEBUG;
+    public static final int INFO = android.util.Log.INFO;
+    public static final int WARN = android.util.Log.WARN;
+    public static final int ERROR = android.util.Log.ERROR;
+    public static final int ASSERT = android.util.Log.ASSERT;
+
+    // Stores the beginning of the LogNode topology.
+    private static LogNode mLogNode;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public static LogNode getLogNode() {
+        return mLogNode;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to.
+     */
+    public static void setLogNode(LogNode node) {
+        mLogNode = node;
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void println(int priority, String tag, String msg, Throwable tr) {
+        if (mLogNode != null) {
+            mLogNode.println(priority, tag, msg, tr);
+        }
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     */
+    public static void println(int priority, String tag, String msg) {
+        println(priority, tag, msg, null);
+    }
+
+   /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void v(String tag, String msg, Throwable tr) {
+        println(VERBOSE, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void v(String tag, String msg) {
+        v(tag, msg, null);
+    }
+
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void d(String tag, String msg, Throwable tr) {
+        println(DEBUG, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void d(String tag, String msg) {
+        d(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void i(String tag, String msg, Throwable tr) {
+        println(INFO, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void i(String tag, String msg) {
+        i(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, String msg, Throwable tr) {
+        println(WARN, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void w(String tag, String msg) {
+        w(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, Throwable tr) {
+        w(tag, null, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void e(String tag, String msg, Throwable tr) {
+        println(ERROR, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void e(String tag, String msg) {
+        e(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, String msg, Throwable tr) {
+        println(ASSERT, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void wtf(String tag, String msg) {
+        wtf(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, Throwable tr) {
+        wtf(tag, null, tr);
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogFragment.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogFragment.java
new file mode 100644
index 0000000..b302acd
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogFragment.java
@@ -0,0 +1,109 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.common.logger;
+
+import android.graphics.Typeface;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ScrollView;
+
+/**
+ * Simple fraggment which contains a LogView and uses is to output log data it receives
+ * through the LogNode interface.
+ */
+public class LogFragment extends Fragment {
+
+    private LogView mLogView;
+    private ScrollView mScrollView;
+
+    public LogFragment() {}
+
+    public View inflateViews() {
+        mScrollView = new ScrollView(getActivity());
+        ViewGroup.LayoutParams scrollParams = new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.MATCH_PARENT);
+        mScrollView.setLayoutParams(scrollParams);
+
+        mLogView = new LogView(getActivity());
+        ViewGroup.LayoutParams logParams = new ViewGroup.LayoutParams(scrollParams);
+        logParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
+        mLogView.setLayoutParams(logParams);
+        mLogView.setClickable(true);
+        mLogView.setFocusable(true);
+        mLogView.setTypeface(Typeface.MONOSPACE);
+
+        // Want to set padding as 16 dips, setPadding takes pixels.  Hooray math!
+        int paddingDips = 16;
+        double scale = getResources().getDisplayMetrics().density;
+        int paddingPixels = (int) ((paddingDips * (scale)) + .5);
+        mLogView.setPadding(paddingPixels, paddingPixels, paddingPixels, paddingPixels);
+        mLogView.setCompoundDrawablePadding(paddingPixels);
+
+        mLogView.setGravity(Gravity.BOTTOM);
+        mLogView.setTextAppearance(getActivity(), android.R.style.TextAppearance_Holo_Medium);
+
+        mScrollView.addView(mLogView);
+        return mScrollView;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        View result = inflateViews();
+
+        mLogView.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {}
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                mScrollView.fullScroll(ScrollView.FOCUS_DOWN);
+            }
+        });
+        return result;
+    }
+
+    public LogView getLogView() {
+        return mLogView;
+    }
+}
\ No newline at end of file
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogNode.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogNode.java
new file mode 100644
index 0000000..bc37cab
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogNode.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Basic interface for a logging system that can output to one or more targets.
+ * Note that in addition to classes that will output these logs in some format,
+ * one can also implement this interface over a filter and insert that in the chain,
+ * such that no targets further down see certain data, or see manipulated forms of the data.
+ * You could, for instance, write a "ToHtmlLoggerNode" that just converted all the log data
+ * it received to HTML and sent it along to the next node in the chain, without printing it
+ * anywhere.
+ */
+public interface LogNode {
+
+    /**
+     * Instructs first LogNode in the list to print the log data provided.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public void println(int priority, String tag, String msg, Throwable tr);
+
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogView.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogView.java
new file mode 100644
index 0000000..c01542b
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogView.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.app.Activity;
+import android.content.Context;
+import android.util.*;
+import android.widget.TextView;
+
+/** Simple TextView which is used to output log data received through the LogNode interface.
+*/
+public class LogView extends TextView implements LogNode {
+
+    public LogView(Context context) {
+        super(context);
+    }
+
+    public LogView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public LogView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    /**
+     * Formats the log data and prints it out to the LogView.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+
+        
+        String priorityStr = null;
+
+        // For the purposes of this View, we want to print the priority as readable text.
+        switch(priority) {
+            case android.util.Log.VERBOSE:
+                priorityStr = "VERBOSE";
+                break;
+            case android.util.Log.DEBUG:
+                priorityStr = "DEBUG";
+                break;
+            case android.util.Log.INFO:
+                priorityStr = "INFO";
+                break;
+            case android.util.Log.WARN:
+                priorityStr = "WARN";
+                break;
+            case android.util.Log.ERROR:
+                priorityStr = "ERROR";
+                break;
+            case android.util.Log.ASSERT:
+                priorityStr = "ASSERT";
+                break;
+            default:
+                break;
+        }
+
+        // Handily, the Log class has a facility for converting a stack trace into a usable string.
+        String exceptionStr = null;
+        if (tr != null) {
+            exceptionStr = android.util.Log.getStackTraceString(tr);
+        }
+
+        // Take the priority, tag, message, and exception, and concatenate as necessary
+        // into one usable line of text.
+        final StringBuilder outputBuilder = new StringBuilder();
+
+        String delimiter = "\t";
+        appendIfNotNull(outputBuilder, priorityStr, delimiter);
+        appendIfNotNull(outputBuilder, tag, delimiter);
+        appendIfNotNull(outputBuilder, msg, delimiter);
+        appendIfNotNull(outputBuilder, exceptionStr, delimiter);
+
+        // In case this was originally called from an AsyncTask or some other off-UI thread,
+        // make sure the update occurs within the UI thread.
+        ((Activity) getContext()).runOnUiThread( (new Thread(new Runnable() {
+            @Override
+            public void run() {
+                // Display the text we just generated within the LogView.
+                appendToLog(outputBuilder.toString());
+            }
+        })));
+
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /** Takes a string and adds to it, with a separator, if the bit to be added isn't null. Since
+     * the logger takes so many arguments that might be null, this method helps cut out some of the
+     * agonizing tedium of writing the same 3 lines over and over.
+     * @param source StringBuilder containing the text to append to.
+     * @param addStr The String to append
+     * @param delimiter The String to separate the source and appended strings. A tab or comma,
+     *                  for instance.
+     * @return The fully concatenated String as a StringBuilder
+     */
+    private StringBuilder appendIfNotNull(StringBuilder source, String addStr, String delimiter) {
+        if (addStr != null) {
+            if (addStr.length() == 0) {
+                delimiter = "";
+            }
+
+            return source.append(addStr).append(delimiter);
+        }
+        return source;
+    }
+
+    // The next LogNode in the chain.
+    LogNode mNext;
+
+    /** Outputs the string as a new line of log data in the LogView. */
+    public void appendToLog(String s) {
+        append("\n" + s);
+    }
+
+
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogWrapper.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
new file mode 100644
index 0000000..16a9e7b
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.util.Log;
+
+/**
+ * Helper class which wraps Android's native Log utility in the Logger interface.  This way
+ * normal DDMS output can be one of the many targets receiving and outputting logs simultaneously.
+ */
+public class LogWrapper implements LogNode {
+
+    // For piping:  The next node to receive Log data after this one has done its work.
+    private LogNode mNext;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /**
+     * Prints data out to the console using Android's native log mechanism.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        // There actually are log methods that don't take a msg parameter.  For now,
+        // if that's the case, just convert null to the empty string and move on.
+        String useMsg = msg;
+        if (useMsg == null) {
+            useMsg = "";
+        }
+
+        // If an exeption was provided, convert that exception to a usable string and attach
+        // it to the end of the msg method.
+        if (tr != null) {
+            msg += "\n" + Log.getStackTraceString(tr);
+        }
+
+        // This is functionally identical to Log.x(tag, useMsg);
+        // For instance, if priority were Log.VERBOSE, this would be the same as Log.v(tag, useMsg)
+        Log.println(priority, tag, useMsg);
+
+        // If this isn't the last node in the chain, move things along.
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
new file mode 100644
index 0000000..19967dc
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Simple {@link LogNode} filter, removes everything except the message.
+ * Useful for situations like on-screen log output where you don't want a lot of metadata displayed,
+ * just easy-to-read message updates as they're happening.
+ */
+public class MessageOnlyLogFilter implements LogNode {
+
+    LogNode mNext;
+
+    /**
+     * Takes the "next" LogNode as a parameter, to simplify chaining.
+     *
+     * @param next The next LogNode in the pipeline.
+     */
+    public MessageOnlyLogFilter(LogNode next) {
+        mNext = next;
+    }
+
+    public MessageOnlyLogFilter() {
+    }
+
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        if (mNext != null) {
+            getNext().println(Log.NONE, null, msg, null);
+        }
+    }
+
+    /**
+     * Returns the next LogNode in the chain.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/MainActivity.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/MainActivity.java
new file mode 100644
index 0000000..5f38bad
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/MainActivity.java
@@ -0,0 +1,306 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.system.runtimepermissions;
+
+import com.example.android.common.activities.SampleActivityBase;
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogFragment;
+import com.example.android.common.logger.LogWrapper;
+import com.example.android.common.logger.MessageOnlyLogFilter;
+import com.example.android.system.runtimepermissions.camera.CameraPreviewFragment;
+import com.example.android.system.runtimepermissions.contacts.ContactsFragment;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.support.v4.app.FragmentTransaction;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.Toast;
+import android.widget.ViewAnimator;
+
+/**
+ * Launcher Activity that demonstrates the use of runtime permissions for Android M.
+ * It contains a summary sample description, sample log and a Fragment that calls callbacks on this
+ * Activity to illustrate parts of the runtime permissions API.
+ * <p>
+ * This Activity requests permissions to access the camera ({@link android.Manifest.permission#CAMERA})
+ * when the 'Show Camera' button is clicked to display the camera preview.
+ * Contacts permissions (({@link android.Manifest.permission#READ_CONTACTS} and ({@link
+ * android.Manifest.permission#WRITE_CONTACTS})) are requested when the 'Show and Add Contacts'
+ * button is
+ * clicked to display the first contact in the contacts database and to add a dummy contact
+ * directly
+ * to it. First, permissions are checked if they have already been granted through {@link
+ * android.app.Activity#checkSelfPermission(String)} (wrapped in {@link
+ * PermissionUtil#hasSelfPermission(Activity, String)} and {@link PermissionUtil#hasSelfPermission(Activity,
+ * String[])} for compatibility). If permissions have not been granted, they are requested through
+ * {@link Activity#requestPermissions(String[], int)} and the return value checked in {@link
+ * Activity#onRequestPermissionsResult(int, String[], int[])}.
+ * <p>
+ * Before requesting permissions, {@link Activity#shouldShowRequestPermissionRationale(String)}
+ * should be called to provide the user with additional context for the use of permissions if they
+ * have been denied previously.
+ * <p>
+ * If this sample is executed on a device running a platform version below M, all permissions
+ * declared
+ * in the Android manifest file are always granted at install time and cannot be requested at run
+ * time.
+ * <p>
+ * This sample targets the M platform and must therefore request permissions at runtime. Change the
+ * targetSdk in the file 'Application/build.gradle' to 22 to run the application in compatibility
+ * mode.
+ * Now, if a permission has been disable by the system through the application settings, disabled
+ * APIs provide compatibility data.
+ * For example the camera cannot be opened or an empty list of contacts is returned. No special
+ * action is required in this case.
+ * <p>
+ * (This class is based on the MainActivity used in the SimpleFragment sample template.)
+ */
+public class MainActivity extends SampleActivityBase {
+
+    public static final String TAG = "MainActivity";
+
+    /**
+     * Id to identify a camera permission request.
+     */
+    private static final int REQUEST_CAMERA = 0;
+
+    /**
+     * Id to identify a contacts permission request.
+     */
+    private static final int REQUEST_CONTACTS = 1;
+
+    /**
+     * Permissions required to read and write contacts. Used by the {@link ContactsFragment}.
+     */
+    private static String[] PERMISSIONS_CONTACT = {Manifest.permission.READ_CONTACTS,
+            Manifest.permission.WRITE_CONTACTS};
+
+    // Whether the Log Fragment is currently shown.
+    private boolean mLogShown;
+
+
+    /**
+     * Called when the 'show camera' button is clicked.
+     * Callback is defined in resource layout definition.
+     */
+    public void showCamera(View view) {
+        Log.i(TAG, "Show camera button pressed. Checking permission.");
+        // BEGIN_INCLUDE(camera_permission)
+        // Check if the Camera permission is already available.
+        if (PermissionUtil.hasSelfPermission(this, Manifest.permission.CAMERA)) {
+            // Camera permissions is already available, show the camera preview.
+            Log.i(TAG,
+                    "CAMERA permission has already been granted. Displaying camera preview.");
+            showCameraPreview();
+        } else {
+            // Camera permission has not been granted.
+            Log.i(TAG, "CAMERA permission has NOT been granted. Requesting permission.");
+
+            // Provide an additional rationale to the user if the permission was not granted
+            // and the user would benefit from additional context for the use of the permission.
+            if (shouldShowRequestPermissionRationale(Manifest.permission.CAMERA)) {
+                Log.i(TAG,
+                        "Displaying camera permission rationale to provide additional context.");
+                Toast.makeText(this, R.string.permission_camera_rationale, Toast.LENGTH_SHORT)
+                        .show();
+            }
+
+            // Request Camera permission
+            requestPermissions(new String[]{Manifest.permission.CAMERA},
+                    REQUEST_CAMERA);
+        }
+        // END_INCLUDE(camera_permission)
+
+    }
+
+    /**
+     * Called when the 'show camera' button is clicked.
+     * Callback is defined in resource layout definition.
+     */
+    public void showContacts(View v) {
+        Log.i(TAG, "Show contacts button pressed. Checking permissions.");
+        // Verify that all required contact permissions have been granted.
+        if (PermissionUtil.hasSelfPermission(this, PERMISSIONS_CONTACT)) {
+            Log.i(TAG,
+                    "Contact permissions have already been granted. Displaying contact details.");
+            // Contact permissions have been granted. Show the contacts fragment.
+            showContactDetails();
+        } else {
+            // Contacts permissions have not been granted.
+            Log.i(TAG, "Contact permissions has NOT been granted. Requesting permission.");
+
+            // Provide an additional rationale to the user if the permission was not granted
+            // and the user would benefit from additional context for the use of the permission.
+            if (shouldShowRequestPermissionRationale(Manifest.permission.CAMERA)) {
+                Log.i(TAG,
+                        "Displaying contacts permission rationale to provide additional context.");
+                Toast.makeText(this, R.string.permission_contacts_rationale, Toast.LENGTH_SHORT)
+                        .show();
+            }
+
+            // contact permissions has not been granted (read and write contacts). Request them.
+            requestPermissions(PERMISSIONS_CONTACT, REQUEST_CONTACTS);
+        }
+    }
+
+    /**
+     * Display the {@link CameraPreviewFragment} in the content area if the required Camera
+     * permission has been granted.
+     */
+    private void showCameraPreview() {
+        getSupportFragmentManager().beginTransaction()
+                .replace(R.id.sample_content_fragment, CameraPreviewFragment.newInstance())
+                .addToBackStack("contacts")
+                .commit();
+    }
+
+    /**
+     * Display the {@link ContactsFragment} in the content area if the required contacts
+     * permissions
+     * have been granted.
+     */
+    private void showContactDetails() {
+        getSupportFragmentManager().beginTransaction()
+                .replace(R.id.sample_content_fragment, ContactsFragment.newInstance())
+                .addToBackStack("contacts")
+                .commit();
+    }
+
+
+    /**
+     * Callback received when a permissions request has been completed.
+     */
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions,
+            int[] grantResults) {
+
+        if (requestCode == REQUEST_CAMERA) {
+            // BEGIN_INCLUDE(permission_result)
+            // Received permission result for camera permission.
+            Log.i(TAG, "Received response for Camera permission request.");
+
+            // Check if the only required permission has been granted
+            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                // Camera permission has been granted, preview can be displayed
+                Log.i(TAG, "CAMERA permission has now been granted. Showing preview.");
+                Toast.makeText(this, R.string.permision_available_camera, Toast.LENGTH_SHORT)
+                        .show();
+            } else {
+                Log.i(TAG, "CAMERA permission was NOT granted.");
+                Toast.makeText(this, R.string.permissions_not_granted, Toast.LENGTH_SHORT).show();
+
+            }
+            // END_INCLUDE(permission_result)
+
+        } else if (requestCode == REQUEST_CONTACTS) {
+            Log.i(TAG, "Received response for contact permissions request.");
+
+            // We have requested multiple permissions for contacts, so all of them need to be
+            // checked.
+            if (PermissionUtil.verifyPermissions(grantResults)) {
+                // All required permissions have been granted, display contacts fragment.
+                Toast.makeText(this, R.string.permision_available_contacts, Toast.LENGTH_SHORT)
+                        .show();
+            } else {
+                Log.i(TAG, "Contacts permissions were NOT granted.");
+                Toast.makeText(this, R.string.permissions_not_granted, Toast.LENGTH_SHORT).show();
+            }
+
+        } else {
+            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        }
+    }
+
+    /* Note: Methods and definitions below are only used to provide the UI for this sample and are
+    not relevant for the execution of the runtime permissions API. */
+
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        MenuItem logToggle = menu.findItem(R.id.menu_toggle_log);
+        logToggle.setVisible(findViewById(R.id.sample_output) instanceof ViewAnimator);
+        logToggle.setTitle(mLogShown ? R.string.sample_hide_log : R.string.sample_show_log);
+
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.menu_toggle_log:
+                mLogShown = !mLogShown;
+                ViewAnimator output = (ViewAnimator) findViewById(R.id.sample_output);
+                if (mLogShown) {
+                    output.setDisplayedChild(1);
+                } else {
+                    output.setDisplayedChild(0);
+                }
+                supportInvalidateOptionsMenu();
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    /** Create a chain of targets that will receive log data */
+    @Override
+    public void initializeLogging() {
+        // Wraps Android's native log framework.
+        LogWrapper logWrapper = new LogWrapper();
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        Log.setLogNode(logWrapper);
+
+        // Filter strips out everything except the message text.
+        MessageOnlyLogFilter msgFilter = new MessageOnlyLogFilter();
+        logWrapper.setNext(msgFilter);
+
+        // On screen logging via a fragment with a TextView.
+        LogFragment logFragment = (LogFragment) getSupportFragmentManager()
+                .findFragmentById(R.id.log_fragment);
+        msgFilter.setNext(logFragment.getLogView());
+    }
+
+    public void onBackClick(View view) {
+        getSupportFragmentManager().popBackStack();
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        if (savedInstanceState == null) {
+            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+            RuntimePermissionsFragment fragment = new RuntimePermissionsFragment();
+            transaction.replace(R.id.sample_content_fragment, fragment);
+            transaction.commit();
+        }
+
+        // This method sets up our custom logger, which will print all log messages to the device
+        // screen, as well as to adb logcat.
+        initializeLogging();
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/PermissionUtil.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/PermissionUtil.java
new file mode 100644
index 0000000..ba2370f
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/PermissionUtil.java
@@ -0,0 +1,90 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.system.runtimepermissions;
+
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.os.Build;
+
+/**
+ * Utility class that wraps access to the runtime permissions API in M and provides basic helper
+ * methods.
+ */
+public abstract class PermissionUtil {
+
+    /**
+     * Check that all given permissions have been granted by verifying that each entry in the
+     * given array is of the value {@link PackageManager#PERMISSION_GRANTED}.
+     *
+     * @see Activity#onRequestPermissionsResult(int, String[], int[])
+     */
+    public static boolean verifyPermissions(int[] grantResults) {
+        // Verify that each required permission has been granted, otherwise return false.
+        for (int result : grantResults) {
+            if (result != PackageManager.PERMISSION_GRANTED) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Returns true if the Activity has access to all given permissions.
+     * Always returns true on platforms below M.
+     *
+     * @see Activity#checkSelfPermission(String)
+     */
+    public static boolean hasSelfPermission(Activity activity, String[] permissions) {
+        // Below Android M all permissions are granted at install time and are already available.
+        if (!isMNC()) {
+            return true;
+        }
+
+        // Verify that all required permissions have been granted
+        for (String permission : permissions) {
+            if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Returns true if the Activity has access to a given permission.
+     * Always returns true on platforms below M.
+     *
+     * @see Activity#checkSelfPermission(String)
+     */
+    public static boolean hasSelfPermission(Activity activity, String permission) {
+        // Below Android M all permissions are granted at install time and are already available.
+        if (!isMNC()) {
+            return true;
+        }
+
+        return activity.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
+    }
+
+    public static boolean isMNC() {
+        /*
+         TODO: In the Android M Preview release, checking if the platform is M is done through
+         the codename, not the version code. Once the API has been finalised, the following check
+         should be used: */
+        // return Build.VERSION.SDK_INT == Build.VERSION_CODES.MNC
+
+        return "MNC".equals(Build.VERSION.CODENAME);
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/RuntimePermissionsFragment.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/RuntimePermissionsFragment.java
new file mode 100644
index 0000000..b35bfeb
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/RuntimePermissionsFragment.java
@@ -0,0 +1,50 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.system.runtimepermissions;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+public class RuntimePermissionsFragment extends Fragment {
+
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        View root = inflater.inflate(R.layout.fragment_main, null);
+
+        // BEGIN_INCLUDE(m_only_permission)
+        if (!PermissionUtil.isMNC()) {
+            /*
+            The contacts permissions have been declared in the AndroidManifest for Android M only.
+            They are not available on older platforms, so we are hiding the button to access the
+            contacts database.
+            This shows how new runtime-only permissions can be added, that do not apply to older
+            platform versions. This can be useful for automated updates where additional
+            permissions might prompt the user on upgrade.
+             */
+            root.findViewById(R.id.button_camera).setVisibility(View.GONE);
+        }
+        // END_INCLUDE(m_only_permission)
+
+        return root;
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/camera/CameraPreview.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/camera/CameraPreview.java
new file mode 100644
index 0000000..1d25b51
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/camera/CameraPreview.java
@@ -0,0 +1,142 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.system.runtimepermissions.camera;
+
+import android.content.Context;
+import android.hardware.Camera;
+import android.util.Log;
+import android.view.Surface;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+
+import java.io.IOException;
+
+/**
+ * Camera preview that displays a {@link Camera}.
+ *
+ * Handles basic lifecycle methods to display and stop the preview.
+ * <p>
+ * Implementation is based directly on the documentation at
+ * http://developer.android.com/guide/topics/media/camera.html
+ */
+public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback {
+
+    private static final String TAG = "CameraPreview";
+    private SurfaceHolder mHolder;
+    private Camera mCamera;
+    private Camera.CameraInfo mCameraInfo;
+    private int mDisplayOrientation;
+
+    public CameraPreview(Context context, Camera camera, Camera.CameraInfo cameraInfo,
+            int displayOrientation) {
+        super(context);
+
+        // Do not initialise if no camera has been set
+        if (camera == null || cameraInfo == null) {
+            return;
+        }
+        mCamera = camera;
+        mCameraInfo = cameraInfo;
+        mDisplayOrientation = displayOrientation;
+
+        // Install a SurfaceHolder.Callback so we get notified when the
+        // underlying surface is created and destroyed.
+        mHolder = getHolder();
+        mHolder.addCallback(this);
+    }
+
+    public void surfaceCreated(SurfaceHolder holder) {
+        // The Surface has been created, now tell the camera where to draw the preview.
+        try {
+            mCamera.setPreviewDisplay(holder);
+            mCamera.startPreview();
+            Log.d(TAG, "Camera preview started.");
+        } catch (IOException e) {
+            Log.d(TAG, "Error setting camera preview: " + e.getMessage());
+        }
+    }
+
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        // empty. Take care of releasing the Camera preview in your activity.
+    }
+
+    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
+        // If your preview can change or rotate, take care of those events here.
+        // Make sure to stop the preview before resizing or reformatting it.
+
+        if (mHolder.getSurface() == null) {
+            // preview surface does not exist
+            Log.d(TAG, "Preview surface does not exist");
+            return;
+        }
+
+        // stop preview before making changes
+        try {
+            mCamera.stopPreview();
+            Log.d(TAG, "Preview stopped.");
+        } catch (Exception e) {
+            // ignore: tried to stop a non-existent preview
+            Log.d(TAG, "Error starting camera preview: " + e.getMessage());
+        }
+
+        int orientation = calculatePreviewOrientation(mCameraInfo, mDisplayOrientation);
+        mCamera.setDisplayOrientation(orientation);
+
+        try {
+            mCamera.setPreviewDisplay(mHolder);
+            mCamera.startPreview();
+            Log.d(TAG, "Camera preview started.");
+        } catch (Exception e) {
+            Log.d(TAG, "Error starting camera preview: " + e.getMessage());
+        }
+    }
+
+    /**
+     * Calculate the correct orientation for a {@link Camera} preview that is displayed on screen.
+     *
+     * Implementation is based on the sample code provided in
+     * {@link Camera#setDisplayOrientation(int)}.
+     */
+    public static int calculatePreviewOrientation(Camera.CameraInfo info, int rotation) {
+        int degrees = 0;
+
+        switch (rotation) {
+            case Surface.ROTATION_0:
+                degrees = 0;
+                break;
+            case Surface.ROTATION_90:
+                degrees = 90;
+                break;
+            case Surface.ROTATION_180:
+                degrees = 180;
+                break;
+            case Surface.ROTATION_270:
+                degrees = 270;
+                break;
+        }
+
+        int result;
+        if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
+            result = (info.orientation + degrees) % 360;
+            result = (360 - result) % 360;  // compensate the mirror
+        } else {  // back-facing
+            result = (info.orientation - degrees + 360) % 360;
+        }
+
+        return result;
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/camera/CameraPreviewFragment.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/camera/CameraPreviewFragment.java
new file mode 100644
index 0000000..871cf75
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/camera/CameraPreviewFragment.java
@@ -0,0 +1,117 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.system.runtimepermissions.camera;
+
+import com.example.android.common.logger.Log;
+import com.example.android.system.runtimepermissions.R;
+
+import android.hardware.Camera;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import android.widget.Toast;
+
+/**
+ * Displays a {@link CameraPreview} of the first {@link Camera}.
+ * An error message is displayed if the Camera is not available.
+ * <p>
+ * This Fragment is only used to illustrate that access to the Camera API has been granted (or
+ * denied) as part of the runtime permissions model. It is not relevant for the use of the
+ * permissions API.
+ * <p>
+ * Implementation is based directly on the documentation at
+ * http://developer.android.com/guide/topics/media/camera.html
+ */
+public class CameraPreviewFragment extends Fragment {
+
+    private static final String TAG = "CameraPreview";
+
+    /**
+     * Id of the camera to access. 0 is the first camera.
+     */
+    private static final int CAMERA_ID = 0;
+
+    private CameraPreview mPreview;
+    private Camera mCamera;
+
+    public static CameraPreviewFragment newInstance() {
+        return new CameraPreviewFragment();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+
+        // Open an instance of the first camera and retrieve its info.
+        mCamera = getCameraInstance(CAMERA_ID);
+        Camera.CameraInfo cameraInfo = null;
+
+        if (mCamera != null) {
+            // Get camera info only if the camera is available
+            cameraInfo = new Camera.CameraInfo();
+            Camera.getCameraInfo(CAMERA_ID, cameraInfo);
+        }
+
+        if (mCamera == null || cameraInfo == null) {
+            // Camera is not available, display error message
+            Toast.makeText(getActivity(), "Camera is not available.", Toast.LENGTH_SHORT).show();
+            return inflater.inflate(R.layout.fragment_camera_unavailable, null);
+        }
+
+        View root = inflater.inflate(R.layout.fragment_camera, null);
+
+        // Get the rotation of the screen to adjust the preview image accordingly.
+        final int displayRotation = getActivity().getWindowManager().getDefaultDisplay()
+                .getRotation();
+
+        // Create the Preview view and set it as the content of this Activity.
+        mPreview = new CameraPreview(getActivity(), mCamera, cameraInfo, displayRotation);
+        FrameLayout preview = (FrameLayout) root.findViewById(R.id.camera_preview);
+        preview.addView(mPreview);
+
+        return root;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        // Stop camera access
+        releaseCamera();
+    }
+
+    /** A safe way to get an instance of the Camera object. */
+    public static Camera getCameraInstance(int cameraId) {
+        Camera c = null;
+        try {
+            c = Camera.open(cameraId); // attempt to get a Camera instance
+        } catch (Exception e) {
+            // Camera is not available (in use or does not exist)
+            Log.d(TAG, "Camera " + cameraId + " is not available: " + e.getMessage());
+        }
+        return c; // returns null if camera is unavailable
+    }
+
+    private void releaseCamera() {
+        if (mCamera != null) {
+            mCamera.release();        // release the camera for other applications
+            mCamera = null;
+        }
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/contacts/ContactsFragment.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/contacts/ContactsFragment.java
new file mode 100644
index 0000000..19f54fb
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/contacts/ContactsFragment.java
@@ -0,0 +1,189 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.system.runtimepermissions.contacts;
+
+import com.example.android.common.logger.Log;
+import com.example.android.system.runtimepermissions.R;
+
+import android.content.ContentProviderOperation;
+import android.content.ContentResolver;
+import android.content.OperationApplicationException;
+import android.database.Cursor;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.provider.ContactsContract;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+
+/**
+ * Displays the first contact stored on the device and contains an option to add a dummy contact.
+ * <p>
+ * This Fragment is only used to illustrate that access to the Contacts ContentProvider API has
+ * been granted (or denied) as part of the runtime permissions model. It is not relevant for the
+ * use
+ * of the permissions API.
+ * <p>
+ * This fragments demonstrates a basic use case for accessing the Contacts Provider. The
+ * implementation is based on the training guide available here:
+ * https://developer.android.com/training/contacts-provider/retrieve-names.html
+ */
+public class ContactsFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor> {
+
+    private static final String TAG = "Contacts";
+    private TextView mMessageText = null;
+
+    private static String DUMMY_CONTACT_NAME = "__DUMMY CONTACT from runtime permissions sample";
+
+    /**
+     * Projection for the content provider query includes the id and primary name of a contact.
+     */
+    private static final String[] PROJECTION = {ContactsContract.Contacts._ID,
+            ContactsContract.Contacts.DISPLAY_NAME_PRIMARY};
+    /**
+     * Sort order for the query. Sorted by primary name in ascending order.
+     */
+    private static final String ORDER = ContactsContract.Contacts.DISPLAY_NAME_PRIMARY + " ASC";
+
+
+    /**
+     * Creates a new instance of a ContactsFragment.
+     */
+    public static ContactsFragment newInstance() {
+        return new ContactsFragment();
+    }
+
+
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        View rootView = inflater.inflate(R.layout.fragment_contacts, container, false);
+
+        mMessageText = (TextView) rootView.findViewById(R.id.contact_message);
+
+        // Register a listener to add a dummy contact when a button is clicked.
+        Button button = (Button) rootView.findViewById(R.id.contact_add);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                insertDummyContact();
+            }
+        });
+
+        // Register a listener to display the first contact when a button is clicked.
+        button = (Button) rootView.findViewById(R.id.contact_load);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                loadContact();
+            }
+        });
+        return rootView;
+    }
+
+    /**
+     * Restart the Loader to query the Contacts content provider to display the first contact.
+     */
+    private void loadContact() {
+        getLoaderManager().restartLoader(0, null, this);
+    }
+
+    /**
+     * Initialises a new {@link CursorLoader} that queries the {@link ContactsContract}.
+     */
+    @Override
+    public Loader<Cursor> onCreateLoader(int i, Bundle bundle) {
+        return new CursorLoader(getActivity(), ContactsContract.Contacts.CONTENT_URI, PROJECTION,
+                null, null, ORDER);
+    }
+
+
+    /**
+     * Dislays either the name of the first contact or a message.
+     */
+    @Override
+    public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
+
+        if (cursor != null) {
+            final int totalCount = cursor.getCount();
+            if (totalCount > 0) {
+                cursor.moveToFirst();
+                String name = cursor
+                        .getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
+                mMessageText.setText(
+                        getResources().getString(R.string.contacts_string, totalCount, name));
+                Log.d(TAG, "First contact loaded: " + name);
+                Log.d(TAG, "Total number of contacts: " + totalCount);
+                Log.d(TAG, "Total number of contacts: " + totalCount);
+            } else {
+                Log.d(TAG, "List of contacts is empty.");
+                mMessageText.setText(R.string.contacts_empty);
+            }
+        }
+    }
+
+    @Override
+    public void onLoaderReset(Loader<Cursor> loader) {
+        mMessageText.setText(R.string.contacts_empty);
+    }
+
+    /**
+     * Accesses the Contacts content provider directly to insert a new contact.
+     * <p>
+     * The contact is called "__DUMMY ENTRY" and only contains a name.
+     */
+    private void insertDummyContact() {
+        // Two operations are needed to insert a new contact.
+        ArrayList<ContentProviderOperation> operations = new ArrayList<ContentProviderOperation>(2);
+
+        // First, set up a new raw contact.
+        ContentProviderOperation.Builder op =
+                ContentProviderOperation.newInsert(ContactsContract.RawContacts.CONTENT_URI)
+                        .withValue(ContactsContract.RawContacts.ACCOUNT_TYPE, null)
+                        .withValue(ContactsContract.RawContacts.ACCOUNT_NAME, null);
+        operations.add(op.build());
+
+        // Next, set the name for the contact.
+        op = ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI)
+                .withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0)
+                .withValue(ContactsContract.Data.MIMETYPE,
+                        ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE)
+                .withValue(ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME,
+                        DUMMY_CONTACT_NAME);
+        operations.add(op.build());
+
+        // Apply the operations.
+        ContentResolver resolver = getActivity().getContentResolver();
+        try {
+            resolver.applyBatch(ContactsContract.AUTHORITY, operations);
+        } catch (RemoteException e) {
+            Log.d(TAG, "Could not add a new contact: " + e.getMessage());
+        } catch (OperationApplicationException e) {
+            Log.d(TAG, "Could not add a new contact: " + e.getMessage());
+        }
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout-w720dp/activity_main.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout-w720dp/activity_main.xml
new file mode 100644
index 0000000..c9a52f6
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout-w720dp/activity_main.xml
@@ -0,0 +1,73 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="horizontal"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <LinearLayout
+          android:id="@+id/sample_output"
+          android:layout_width="0px"
+          android:layout_height="match_parent"
+          android:layout_weight="1"
+          android:orientation="vertical">
+
+        <FrameLayout
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/margin_medium"
+                  android:paddingRight="@dimen/margin_medium"
+                  android:paddingTop="@dimen/margin_large"
+                  android:paddingBottom="@dimen/margin_large"
+                  android:text="@string/intro_message" />
+        </FrameLayout>
+
+        <View
+              android:layout_width="match_parent"
+              android:layout_height="1dp"
+              android:background="@android:color/darker_gray" />
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="0px"
+              android:layout_weight="1" />
+
+    </LinearLayout>
+
+    <View
+          android:layout_width="1dp"
+          android:layout_height="match_parent"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="0px"
+          android:layout_height="match_parent" />
+
+</LinearLayout>
+
+
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..64e8322
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,65 @@
+<!--
+  Copyright 2015 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="vertical"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <ViewAnimator
+          android:id="@+id/sample_output"
+          android:layout_width="match_parent"
+          android:layout_height="0px"
+          android:layout_weight="1">
+
+        <ScrollView
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/horizontal_page_margin"
+                  android:paddingRight="@dimen/horizontal_page_margin"
+                  android:paddingTop="@dimen/vertical_page_margin"
+                  android:paddingBottom="@dimen/vertical_page_margin"
+                  android:text="@string/intro_message" />
+        </ScrollView>
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent" />
+
+    </ViewAnimator>
+
+    <View
+          android:layout_width="match_parent"
+          android:layout_height="1dp"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="match_parent"
+          android:layout_height="0px" />
+
+</LinearLayout>
+
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_camera.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_camera.xml
new file mode 100644
index 0000000..ecdc54a
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_camera.xml
@@ -0,0 +1,33 @@
+<!--
+ Copyright 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/back"
+            android:onClick="onBackClick"
+            android:layout_gravity="center_horizontal"/>
+
+    <FrameLayout
+            android:id="@+id/camera_preview"
+            android:layout_width="fill_parent"
+            android:layout_height="fill_parent"
+            android:layout_weight="1"
+            />
+</LinearLayout>
\ No newline at end of file
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_camera_unavailable.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_camera_unavailable.xml
new file mode 100644
index 0000000..200ebbc
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_camera_unavailable.xml
@@ -0,0 +1,43 @@
+<!--
+ Copyright 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/back"
+            android:onClick="onBackClick"
+            android:layout_gravity="center_horizontal"/>
+
+    <ScrollView
+            android:layout_width="match_parent"
+            android:layout_height="fill_parent">
+
+        <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:paddingLeft="@dimen/horizontal_page_margin"
+                android:paddingRight="@dimen/horizontal_page_margin"
+                android:paddingTop="@dimen/vertical_page_margin"
+                android:paddingBottom="@dimen/vertical_page_margin"
+                android:text="@string/camera_unavailable"/>
+
+    </ScrollView>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_contacts.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_contacts.xml
new file mode 100644
index 0000000..8a70fe2
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_contacts.xml
@@ -0,0 +1,54 @@
+<!--
+ Copyright 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:paddingLeft="@dimen/horizontal_page_margin"
+              android:paddingRight="@dimen/horizontal_page_margin"
+              android:paddingTop="@dimen/vertical_page_margin"
+              android:paddingBottom="@dimen/vertical_page_margin">
+
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/back"
+            android:onClick="onBackClick"
+            android:layout_gravity="center_horizontal"/>
+
+    <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/contacts_intro"/>
+
+    <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/contact_message"/>
+
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/add_contact"
+            android:id="@+id/contact_add"/>
+
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/show_contact"
+            android:id="@+id/contact_load"/>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_main.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_main.xml
new file mode 100644
index 0000000..f9bfd5f
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/layout/fragment_main.xml
@@ -0,0 +1,48 @@
+<!--
+ Copyright 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:paddingLeft="@dimen/horizontal_page_margin"
+              android:paddingRight="@dimen/horizontal_page_margin"
+              android:paddingTop="@dimen/vertical_page_margin"
+              android:paddingBottom="@dimen/vertical_page_margin"
+              android:orientation="vertical"
+              tools:context=".MainActivityFragment">
+
+    <TextView
+            android:text="@string/main_introduction"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
+
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/show_camera"
+            android:id="@+id/button_camera"
+            android:onClick="showCamera"/>
+
+
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/show_contacts"
+            android:id="@+id/button_contacts"
+            android:onClick="showContacts"/>
+
+</LinearLayout>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/menu/main.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/menu/main.xml
new file mode 100644
index 0000000..b49c2c5
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/menu/main.xml
@@ -0,0 +1,21 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_toggle_log"
+          android:showAsAction="always"
+          android:title="@string/sample_show_log" />
+</menu>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..3279054
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..225fe42
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..c129dbb
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..b4ab118
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..99649fb
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..58d75f9
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">RuntimePermissions</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+            This sample shows runtime permissions available in the Android M and above.
+            Display the log to follow the execution.
+            If executed on an Android M device, an additional option to access contacts is shown.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/fragmentview_strings.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/fragmentview_strings.xml
new file mode 100644
index 0000000..7b9d9ec
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/fragmentview_strings.xml
@@ -0,0 +1,19 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<resources>
+    <string name="sample_show_log">Show Log</string>
+    <string name="sample_hide_log">Hide Log</string>
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/strings.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..82d7b71
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/strings.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="contacts_string">Total number of contacts: %1$,d\nFirst contact:<b>%2$s</b></string>
+    <string name="contacts_none">No contacts stored on device.</string>
+    <string name="contacts_empty">Contacts not loaded.</string>
+    <string name="add_contact">Add a contact</string>
+    <string name="show_contact">Show first contact</string>
+    <string name="contacts_intro">This fragment demonstrates access to the contact database on the device.\n
+            Clicking \"Add a contact\" adds a new contact named "__DUMMY ENTRY" directly into the database.\n
+    Clicking \"Show first contact\" accesses the contact database to display the name of the first contact.</string>
+    <string name="camera_unavailable"><b>Camera could not be opened.</b>\nThis occurs when the camera is not available (for example it is already in use) or if the system has denied access (for example when camera access has been disabled).</string>
+    <string name="back">Back</string>
+    <string name="show_camera">Show camera preview</string>
+    <string name="show_contacts">Show and add contacts</string>
+    <string name="main_introduction">Click the buttons below to show a camera preview or access the contacts database.\nNote that the contacts option is only available on Android M to illustrate the use of optional, M-only permissions that are not requested on lower SDK platforms.</string>
+    <string name="permision_available_camera">Camera Permission has been granted. Preview can now be opened.</string>
+    <string name="permision_available_contacts">Contacts Permissions have been granted. Contacts screen can now be opened.</string>
+    <string name="permissions_not_granted">Permissions were not granted.</string>
+    <string name="permission_camera_rationale">Camera permission is needed to show the camera preview.</string>
+    <string name="permission_contacts_rationale">Contacts permissions are needed to demonstrate access to the contacts database.</string>
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissions/CONTRIBUTING.md b/prebuilts/gradle/RuntimePermissions/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/RuntimePermissions/LICENSE b/prebuilts/gradle/RuntimePermissions/LICENSE
new file mode 100644
index 0000000..4f22946
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/LICENSE
@@ -0,0 +1,647 @@
+Apache License
+--------------
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+     Similar Rights licensed here. However, if You fail to comply with
+     this Public License, then Your rights under this Public License
+     terminate automatically.
+
+  b. Where Your right to use the Licensed Material has terminated under
+     Section 6(a), it reinstates:
+
+       1. automatically as of the date the violation is cured, provided
+          it is cured within 30 days of Your discovery of the
+          violation; or
+
+       2. upon express reinstatement by the Licensor.
+
+     For the avoidance of doubt, this Section 6(b) does not affect any
+     right the Licensor may have to seek remedies for Your violations
+     of this Public License.
+
+  c. For the avoidance of doubt, the Licensor may also offer the
+     Licensed Material under separate terms or conditions or stop
+     distributing the Licensed Material at any time; however, doing so
+     will not terminate this Public License.
+
+  d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
+     License.
+
+
+Section 7 -- Other Terms and Conditions.
+
+  a. The Licensor shall not be bound by any additional or different
+     terms or conditions communicated by You unless expressly agreed.
+
+  b. Any arrangements, understandings, or agreements regarding the
+     Licensed Material not stated herein are separate from and
+     independent of the terms and conditions of this Public License.
+
+
+Section 8 -- Interpretation.
+
+  a. For the avoidance of doubt, this Public License does not, and
+     shall not be interpreted to, reduce, limit, restrict, or impose
+     conditions on any use of the Licensed Material that could lawfully
+     be made without permission under this Public License.
+
+  b. To the extent possible, if any provision of this Public License is
+     deemed unenforceable, it shall be automatically reformed to the
+     minimum extent necessary to make it enforceable. If the provision
+     cannot be reformed, it shall be severed from this Public License
+     without affecting the enforceability of the remaining terms and
+     conditions.
+
+  c. No term or condition of this Public License will be waived and no
+     failure to comply consented to unless expressly agreed to by the
+     Licensor.
+
+  d. Nothing in this Public License constitutes or may be interpreted
+     as a limitation upon, or waiver of, any privileges and immunities
+     that apply to the Licensor or You, including from the legal
+     processes of any jurisdiction or authority.
+
+=======================================================================
+
+Creative Commons is not a party to its public licenses.
+Notwithstanding, Creative Commons may elect to apply one of its public
+licenses to material it publishes and in those instances will be
+considered the "Licensor." Except for the limited purpose of indicating
+that material is shared under a Creative Commons public license or as
+otherwise permitted by the Creative Commons policies published at
+creativecommons.org/policies, Creative Commons does not authorize the
+use of the trademark "Creative Commons" or any other trademark or logo
+of Creative Commons without its prior written consent including,
+without limitation, in connection with any unauthorized modifications
+to any of its public licenses or any other arrangements,
+understandings, or agreements concerning use of licensed material. For
+the avoidance of doubt, this paragraph does not form part of the public
+licenses.
+
+Creative Commons may be contacted at creativecommons.org.
+
diff --git a/prebuilts/gradle/RuntimePermissions/README.md b/prebuilts/gradle/RuntimePermissions/README.md
new file mode 100644
index 0000000..9be94fb
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/README.md
@@ -0,0 +1,77 @@
+
+Android RuntimePermissions Sample
+===================================
+
+This sample shows runtime permissions available in the Android M and above.
+It shows how to check and request permissions at runtime and how to declare permissions for M-devices
+only.
+
+Introduction
+------------
+
+Android M introduced runtime permissions. Applications targeting M and above need to request their
+permissions at runtime.
+All permissions still need to be declared in the AndroidManifest. However, when accessing APIs that
+require a permission, the Activity or Fragment has to verify that the permission has been granted
+or request the missing permissions. Permissions are checked through
+Activity#requestPermissions(String[], int) and Fragment#requestPermissions(String[], int).
+Permission requests are sent through Activity#requestPermissions(String[]), and the response
+received in the callback Activity#onRequestPermissionsResult(int, permissions[], int[]).
+Applications can provide an additional rational for the use of permissions after calling
+Activity#shouldShowRequestPermissionRationale(String). This call will return true if the
+application should provide the user with more context on why the requested permissions is needed,
+for example if the permission request has been denied before.
+
+If an application targets an SDK below M, all permissions are granted at runtime and are available
+when the application is running. However, if permissions have been turned off in the system settings
+for an application targeting an SDK below M, the API will return empty or no data.
+
+Pre-requisites
+--------------
+
+- Android SDK vandroid-MNC
+- Android Build Tools v22.0.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot-2.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-RuntimePermissions
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/RuntimePermissions/build.gradle b/prebuilts/gradle/RuntimePermissions/build.gradle
new file mode 100644
index 0000000..1dac6de
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/RuntimePermissions/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/RuntimePermissions/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/RuntimePermissions/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..8a27ebf
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Sun Dec 07 22:52:45 JST 2014
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
diff --git a/prebuilts/gradle/RuntimePermissions/gradlew b/prebuilts/gradle/RuntimePermissions/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/RuntimePermissions/gradlew.bat b/prebuilts/gradle/RuntimePermissions/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/RuntimePermissions/screenshots/big_icon.png b/prebuilts/gradle/RuntimePermissions/screenshots/big_icon.png
new file mode 100644
index 0000000..706fc04
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/screenshots/big_icon.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-1.png b/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-1.png
new file mode 100644
index 0000000..bb848d8
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-1.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-1.png.png b/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-1.png.png
new file mode 100644
index 0000000..bb848d8
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-1.png.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-2.png b/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-2.png
new file mode 100644
index 0000000..c98c212
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-2.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-2.png.png b/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-2.png.png
new file mode 100644
index 0000000..c98c212
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/screenshots/screenshot-2.png.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/screenshots/web-icon.png b/prebuilts/gradle/RuntimePermissions/screenshots/web-icon.png
new file mode 100755
index 0000000..68af9d0
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/screenshots/web-icon.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissions/settings.gradle b/prebuilts/gradle/RuntimePermissions/settings.gradle
new file mode 100644
index 0000000..9464a35
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissions/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/.google/packaging.yaml b/prebuilts/gradle/RuntimePermissionsBasic/.google/packaging.yaml
new file mode 100644
index 0000000..f796d58
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/.google/packaging.yaml
@@ -0,0 +1,18 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFT
+technologies: [Android]
+categories:   [System]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-RuntimePermissionsBasic
+level:        BEGINNER
+icon:         screenshots/big_icon.png
+apiRefs:
+    - android:android.app.Activity
+    - android:android.Manifest.permission
+license: apache2
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/build.gradle b/prebuilts/gradle/RuntimePermissionsBasic/Application/build.gradle
new file mode 100644
index 0000000..3f1bc93
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/build.gradle
@@ -0,0 +1,74 @@
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.2.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+dependencies {
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+    compile 'com.android.support:appcompat-v7:21.+'
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion "android-MNC"
+    buildToolsVersion "22.0.1"
+
+    defaultConfig {
+        minSdkVersion "MNC"
+        targetSdkVersion "MNC"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..1f7ea6a
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.example.android.basicpermissions">
+
+    <!-- BEGIN_INCLUDE(manifest) -->
+
+    <!-- Note that all required permissions are declared here in the Android manifest.
+     On Android M and above, use of these permissions is only requested at run time. -->
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <!-- END_INCLUDE(manifest) -->
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme">
+        <activity
+                android:name=".MainActivity"
+                android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+
+        <!-- Activity that only displays the camera preview. -->
+        <activity
+                android:name=".camera.CameraPreviewActivity"
+                android:exported="false"/>
+
+    </application>
+
+</manifest>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/MainActivity.java b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/MainActivity.java
new file mode 100644
index 0000000..4e758a8
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/MainActivity.java
@@ -0,0 +1,142 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.basicpermissions;
+
+import com.example.android.basicpermissions.camera.CameraPreviewActivity;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.Toast;
+
+/**
+ * Launcher Activity that demonstrates the use of runtime permissions for Android M.
+ * This Activity requests permissions to access the camera
+ * ({@link android.Manifest.permission#CAMERA})
+ * when the 'Show Camera Preview' button is clicked to start  {@link CameraPreviewActivity} once
+ * the permission has been granted.
+ * <p>
+ * First, the status of the Camera permission is checked using {@link
+ * Activity#checkSelfPermission(String)}.
+ * If it has not been granted ({@link PackageManager#PERMISSION_GRANTED}), it is requested by
+ * calling
+ * {@link Activity#requestPermissions(String[], int)}. The result of the request is returned in
+ * {@link Activity#onRequestPermissionsResult(int, String[], int[])}, which starts {@link
+ * CameraPreviewActivity}
+ * if the permission has been granted.
+ */
+public class MainActivity extends Activity {
+
+    private static final int PERMISSION_REQUEST_CAMERA = 0;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        // Register a listener for the 'Show Camera Preview' button.
+        Button b = (Button) findViewById(R.id.button_open_camera);
+        b.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                showCameraPreview();
+            }
+        });
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions,
+            int[] grantResults) {
+        // BEGIN_INCLUDE(onRequestPermissionsResult)
+        if (requestCode == PERMISSION_REQUEST_CAMERA) {
+            // Request for camera permission.
+            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                // Permission has been granted. Start camera preview Activity.
+                Toast.makeText(this, "Camera permission was granted. Starting preview.",
+                        Toast.LENGTH_SHORT)
+                        .show();
+                startCamera();
+            } else {
+                // Permission request was denied.
+                Toast.makeText(this, "Camera permission request was denied.", Toast.LENGTH_SHORT)
+                        .show();
+            }
+        }
+        // END_INCLUDE(onRequestPermissionsResult)
+    }
+
+    private void showCameraPreview() {
+        // BEGIN_INCLUDE(startCamera)
+        if (!isMNC()) {
+            // Below Android M there is no need to check for runtime permissions
+            Toast.makeText(this,
+                    "Requested permissions are granted at install time below M and are always "
+                            + "available at runtime.",
+                    Toast.LENGTH_SHORT).show();
+            startCamera();
+            return;
+        }
+
+        // Check if the Camera permission has been granted
+        if (checkSelfPermission(Manifest.permission.CAMERA)
+                != PackageManager.PERMISSION_GRANTED) {
+            // Permission has not been granted and must be requested.
+
+            if (shouldShowRequestPermissionRationale(
+                    Manifest.permission.CAMERA)) {
+                // Provide an additional rationale to the user if the permission was not granted
+                // and the user would benefit from additional context for the use of the permission.
+                Toast.makeText(this, "Camera access is required to display a camera preview.",
+                        Toast.LENGTH_SHORT).show();
+            }
+            Toast.makeText(this,
+                    "Permission is not available. Requesting camera permission.",
+                    Toast.LENGTH_SHORT).show();
+
+            // Request the permission. The result will be received in onRequestPermissionResult()
+            requestPermissions(new String[]{Manifest.permission.CAMERA},
+                    PERMISSION_REQUEST_CAMERA);
+        } else {
+            // Permission is already available, start camera preview
+            startCamera();
+            Toast.makeText(this,
+                    "Camera permission is available. Starting preview.",
+                    Toast.LENGTH_SHORT).show();
+        }
+        // END_INCLUDE(startCamera)
+    }
+
+    private void startCamera() {
+        Intent intent = new Intent(this, CameraPreviewActivity.class);
+        startActivity(intent);
+    }
+
+    public static boolean isMNC() {
+        /*
+         TODO: In the Android M Preview release, checking if the platform is M is done through
+         the codename, not the version code. Once the API has been finalised, the following check
+         should be used: */
+        // return Build.VERSION.SDK_INT >= Build.VERSION_CODES.MNC
+
+        return "MNC".equals(Build.VERSION.CODENAME);
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/camera/CameraPreview.java b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/camera/CameraPreview.java
new file mode 100644
index 0000000..7abf2d8
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/camera/CameraPreview.java
@@ -0,0 +1,142 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.basicpermissions.camera;
+
+import android.content.Context;
+import android.hardware.Camera;
+import android.util.Log;
+import android.view.Surface;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+
+import java.io.IOException;
+
+/**
+ * Camera preview that displays a {@link Camera}.
+ *
+ * Handles basic lifecycle methods to display and stop the preview.
+ * <p>
+ * Implementation is based directly on the documentation at
+ * http://developer.android.com/guide/topics/media/camera.html
+ */
+public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback {
+
+    private static final String TAG = "CameraPreview";
+    private SurfaceHolder mHolder;
+    private Camera mCamera;
+    private Camera.CameraInfo mCameraInfo;
+    private int mDisplayOrientation;
+
+    public CameraPreview(Context context, Camera camera, Camera.CameraInfo cameraInfo,
+            int displayOrientation) {
+        super(context);
+
+        // Do not initialise if no camera has been set
+        if (camera == null || cameraInfo == null) {
+            return;
+        }
+        mCamera = camera;
+        mCameraInfo = cameraInfo;
+        mDisplayOrientation = displayOrientation;
+
+        // Install a SurfaceHolder.Callback so we get notified when the
+        // underlying surface is created and destroyed.
+        mHolder = getHolder();
+        mHolder.addCallback(this);
+    }
+
+    public void surfaceCreated(SurfaceHolder holder) {
+        // The Surface has been created, now tell the camera where to draw the preview.
+        try {
+            mCamera.setPreviewDisplay(holder);
+            mCamera.startPreview();
+            Log.d(TAG, "Camera preview started.");
+        } catch (IOException e) {
+            Log.d(TAG, "Error setting camera preview: " + e.getMessage());
+        }
+    }
+
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        // empty. Take care of releasing the Camera preview in your activity.
+    }
+
+    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
+        // If your preview can change or rotate, take care of those events here.
+        // Make sure to stop the preview before resizing or reformatting it.
+
+        if (mHolder.getSurface() == null) {
+            // preview surface does not exist
+            Log.d(TAG, "Preview surface does not exist");
+            return;
+        }
+
+        // stop preview before making changes
+        try {
+            mCamera.stopPreview();
+            Log.d(TAG, "Preview stopped.");
+        } catch (Exception e) {
+            // ignore: tried to stop a non-existent preview
+            Log.d(TAG, "Error starting camera preview: " + e.getMessage());
+        }
+
+        int orientation = calculatePreviewOrientation(mCameraInfo, mDisplayOrientation);
+        mCamera.setDisplayOrientation(orientation);
+
+        try {
+            mCamera.setPreviewDisplay(mHolder);
+            mCamera.startPreview();
+            Log.d(TAG, "Camera preview started.");
+        } catch (Exception e) {
+            Log.d(TAG, "Error starting camera preview: " + e.getMessage());
+        }
+    }
+
+    /**
+     * Calculate the correct orientation for a {@link Camera} preview that is displayed on screen.
+     *
+     * Implementation is based on the sample code provided in
+     * {@link Camera#setDisplayOrientation(int)}.
+     */
+    public static int calculatePreviewOrientation(Camera.CameraInfo info, int rotation) {
+        int degrees = 0;
+
+        switch (rotation) {
+            case Surface.ROTATION_0:
+                degrees = 0;
+                break;
+            case Surface.ROTATION_90:
+                degrees = 90;
+                break;
+            case Surface.ROTATION_180:
+                degrees = 180;
+                break;
+            case Surface.ROTATION_270:
+                degrees = 270;
+                break;
+        }
+
+        int result;
+        if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
+            result = (info.orientation + degrees) % 360;
+            result = (360 - result) % 360;  // compensate the mirror
+        } else {  // back-facing
+            result = (info.orientation - degrees + 360) % 360;
+        }
+
+        return result;
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/camera/CameraPreviewActivity.java b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/camera/CameraPreviewActivity.java
new file mode 100644
index 0000000..ee589d9
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/camera/CameraPreviewActivity.java
@@ -0,0 +1,104 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.basicpermissions.camera;
+
+import com.example.android.basicpermissions.R;
+
+import android.app.Activity;
+import android.hardware.Camera;
+import android.os.Bundle;
+import android.widget.FrameLayout;
+import android.widget.Toast;
+
+/**
+ * Displays a {@link CameraPreview} of the first {@link Camera}.
+ * An error message is displayed if the Camera is not available.
+ * <p>
+ * This Activity is only used to illustrate that access to the Camera API has been granted (or
+ * denied) as part of the runtime permissions model. It is not relevant for the use of the
+ * permissions API.
+ * <p>
+ * Implementation is based directly on the documentation at
+ * http://developer.android.com/guide/topics/media/camera.html
+ */
+public class CameraPreviewActivity extends Activity {
+
+    private static final String TAG = "CameraPreview";
+
+    /**
+     * Id of the camera to access. 0 is the first camera.
+     */
+    private static final int CAMERA_ID = 0;
+
+    private CameraPreview mPreview;
+    private Camera mCamera;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Open an instance of the first camera and retrieve its info.
+        mCamera = getCameraInstance(CAMERA_ID);
+        Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
+        Camera.getCameraInfo(CAMERA_ID, cameraInfo);
+
+        if (mCamera == null || cameraInfo == null) {
+            // Camera is not available, display error message
+            Toast.makeText(this, "Camera is not available.", Toast.LENGTH_SHORT).show();
+            setContentView(R.layout.activity_camera_unavailable);
+        } else {
+
+            setContentView(R.layout.activity_camera);
+
+            // Get the rotation of the screen to adjust the preview image accordingly.
+            final int displayRotation = getWindowManager().getDefaultDisplay()
+                    .getRotation();
+
+            // Create the Preview view and set it as the content of this Activity.
+            mPreview = new CameraPreview(this, mCamera, cameraInfo, displayRotation);
+            FrameLayout preview = (FrameLayout) findViewById(R.id.camera_preview);
+            preview.addView(mPreview);
+        }
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        // Stop camera access
+        releaseCamera();
+    }
+
+    /** A safe way to get an instance of the Camera object. */
+    private Camera getCameraInstance(int cameraId) {
+        Camera c = null;
+        try {
+            c = Camera.open(cameraId); // attempt to get a Camera instance
+        } catch (Exception e) {
+            // Camera is not available (in use or does not exist)
+            Toast.makeText(this, "Camera " + cameraId + " is not available: " + e.getMessage(),
+                    Toast.LENGTH_SHORT).show();
+        }
+        return c; // returns null if camera is unavailable
+    }
+
+    private void releaseCamera() {
+        if (mCamera != null) {
+            mCamera.release();        // release the camera for other applications
+            mCamera = null;
+        }
+    }
+}
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_camera.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_camera.xml
new file mode 100644
index 0000000..b12eee1
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_camera.xml
@@ -0,0 +1,22 @@
+<!--
+ Copyright 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+             android:id="@+id/camera_preview"
+             android:layout_width="fill_parent"
+             android:layout_height="fill_parent"
+             android:layout_weight="1"
+        />
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_camera_unavailable.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_camera_unavailable.xml
new file mode 100644
index 0000000..af0efe5
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_camera_unavailable.xml
@@ -0,0 +1,37 @@
+<!--
+ Copyright 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:paddingLeft="@dimen/horizontal_page_margin"
+              android:paddingRight="@dimen/horizontal_page_margin"
+              android:paddingTop="@dimen/vertical_page_margin"
+              android:paddingBottom="@dimen/vertical_page_margin">
+
+    <ScrollView
+            android:layout_width="match_parent"
+            android:layout_height="fill_parent">
+
+        <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/camera_unavailable"/>
+
+    </ScrollView>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..c3bf99c
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,40 @@
+<!--
+ Copyright 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:paddingLeft="@dimen/horizontal_page_margin"
+              android:paddingRight="@dimen/horizontal_page_margin"
+              android:paddingTop="@dimen/vertical_page_margin"
+              android:paddingBottom="@dimen/vertical_page_margin"
+              android:orientation="vertical"
+              tools:context=".MainActivity">
+
+    <TextView
+            android:text="@string/intro"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/horizontal_page_margin"/>
+
+
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Open Camera Preview"
+            android:id="@+id/button_open_camera"/>
+</LinearLayout>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..a7cee76
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..378d029
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..c898742
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..ad4f1df
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..484f298
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..1a6b6be
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">RuntimePermissionsBasic</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+            This sample shows runtime permissions available in the Android M and above.
+            This sample shows a basic implementation for requesting permissions at runtime. Click the button to request the Camera permission and open a full-screen camera preview.
+Note: The "RuntimePermissions" sample provides a more complete overview over the runtime permission features available.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/strings.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..eb0b7c4
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/strings.xml
@@ -0,0 +1,6 @@
+<resources>
+    <string name="show_camera">Show camera preview</string>
+    <string name="camera_unavailable"><b>Camera could not be opened.</b>\nThis occurs when the camera is not available (for example it is already in use) or if the system has denied access (for example when camera access has been disabled).</string>
+    <string name="intro">This sample shows a basic implementation for requesting permissions at runtime.\nClick the button below to request the Camera permission and open a full-screen camera preview.</string>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/CONTRIBUTING.md b/prebuilts/gradle/RuntimePermissionsBasic/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/LICENSE b/prebuilts/gradle/RuntimePermissionsBasic/LICENSE
new file mode 100644
index 0000000..4f22946
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/LICENSE
@@ -0,0 +1,647 @@
+Apache License
+--------------
+
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+                        http://www.apache.org/licenses/
+
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+            a. Offer from the Licensor -- Licensed Material. Every
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+          provided in Section 3(a)(1)(A)(i).
+
+  b. Other rights.
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+       1. Moral rights, such as the right of integrity, are not
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+          assert any such rights held by the Licensor to the limited
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+
+       2. Patent and trademark rights are not licensed under this
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+       3. To the extent possible, the Licensor waives any right to
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+          the Licensed Material is used other than for NonCommercial
+          purposes.
+
+
+Section 3 -- License Conditions.
+
+Your exercise of the Licensed Rights is expressly made subject to the
+following conditions.
+
+  a. Attribution.
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+       1. If You Share the Licensed Material (including in modified
+          form), You must:
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+                 i. identification of the creator(s) of the Licensed
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+                    attribution, in any reasonable manner requested by
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+                    designated);
+
+                ii. a copyright notice;
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+                iv. a notice that refers to the disclaimer of
+                    warranties;
+
+                 v. a URI or hyperlink to the Licensed Material to the
+                    extent reasonably practicable;
+
+            b. indicate if You modified the Licensed Material and
+               retain an indication of any previous modifications; and
+
+            c. indicate the Licensed Material is licensed under this
+               Public License, and include the text of, or the URI or
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+
+       2. You may satisfy the conditions in Section 3(a)(1) in any
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+          reasonable to satisfy the conditions by providing a URI or
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+       3. If requested by the Licensor, You must remove any of the
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+          reasonably practicable.
+
+  b. ShareAlike.
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+     In addition to the conditions in Section 3(a), if You Share
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+          license with the same License Elements, this version or
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+       2. You must include the text of, or the URI or hyperlink to, the
+          Adapter's License You apply. You may satisfy this condition
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+       3. You may not offer or impose any additional or different terms
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+Section 4 -- Sui Generis Database Rights.
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+
+  a. for the avoidance of doubt, Section 2(a)(1) grants You the right
+     to extract, reuse, reproduce, and Share all or a substantial
+     portion of the contents of the database for NonCommercial purposes
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+  b. if You include all or a substantial portion of the database
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+     Rights (but not its individual contents) is Adapted Material,
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+
+  c. You must comply with the conditions in Section 3(a) if You Share
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+
+For the avoidance of doubt, this Section 4 supplements and does not
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+
+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
+
+  a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
+     EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
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+
+  b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
+     TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
+     NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
+     INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
+     COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR
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+     ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
+     DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR
+     IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.
+
+  c. The disclaimer of warranties and limitation of liability provided
+     above shall be interpreted in a manner that, to the extent
+     possible, most closely approximates an absolute disclaimer and
+     waiver of all liability.
+
+
+Section 6 -- Term and Termination.
+
+  a. This Public License applies for the term of the Copyright and
+     Similar Rights licensed here. However, if You fail to comply with
+     this Public License, then Your rights under this Public License
+     terminate automatically.
+
+  b. Where Your right to use the Licensed Material has terminated under
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+
+       1. automatically as of the date the violation is cured, provided
+          it is cured within 30 days of Your discovery of the
+          violation; or
+
+       2. upon express reinstatement by the Licensor.
+
+     For the avoidance of doubt, this Section 6(b) does not affect any
+     right the Licensor may have to seek remedies for Your violations
+     of this Public License.
+
+  c. For the avoidance of doubt, the Licensor may also offer the
+     Licensed Material under separate terms or conditions or stop
+     distributing the Licensed Material at any time; however, doing so
+     will not terminate this Public License.
+
+  d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
+     License.
+
+
+Section 7 -- Other Terms and Conditions.
+
+  a. The Licensor shall not be bound by any additional or different
+     terms or conditions communicated by You unless expressly agreed.
+
+  b. Any arrangements, understandings, or agreements regarding the
+     Licensed Material not stated herein are separate from and
+     independent of the terms and conditions of this Public License.
+
+
+Section 8 -- Interpretation.
+
+  a. For the avoidance of doubt, this Public License does not, and
+     shall not be interpreted to, reduce, limit, restrict, or impose
+     conditions on any use of the Licensed Material that could lawfully
+     be made without permission under this Public License.
+
+  b. To the extent possible, if any provision of this Public License is
+     deemed unenforceable, it shall be automatically reformed to the
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+     cannot be reformed, it shall be severed from this Public License
+     without affecting the enforceability of the remaining terms and
+     conditions.
+
+  c. No term or condition of this Public License will be waived and no
+     failure to comply consented to unless expressly agreed to by the
+     Licensor.
+
+  d. Nothing in this Public License constitutes or may be interpreted
+     as a limitation upon, or waiver of, any privileges and immunities
+     that apply to the Licensor or You, including from the legal
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+=======================================================================
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+the avoidance of doubt, this paragraph does not form part of the public
+licenses.
+
+Creative Commons may be contacted at creativecommons.org.
+
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/README.md b/prebuilts/gradle/RuntimePermissionsBasic/README.md
new file mode 100644
index 0000000..4ba3899
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/README.md
@@ -0,0 +1,67 @@
+
+Android RuntimePermissionsBasic Sample
+===================================
+
+This basic sample shows runtime permissions available in the Android M and above.
+It shows how to use the new runtime permission API to check for and request permissions.
+
+Introduction
+------------
+
+Android M introduced runtime permissions. Applications targeting M and above need to request their
+permissions at runtime.
+This sample introduces the basic use of the runtime permissions API by checking for permissions (Activity#checkSelfPermission(String)), requesting permissions (Activity#requestPermissions(String[],int))
+and handling the permission request callback (Activity#onRequestPermissionsResult(int, permissions[], int[])).
+An application can display additional context and justification for a permission after calling Activity#shouldShowRequestPermissionRationale(String).
+
+See the "RuntimePermissions" sample for a more complete description and reference implementation.
+
+Pre-requisites
+--------------
+
+- Android SDK vandroid-MNC
+- Android Build Tools v22.0.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-RuntimePermissionsBasic
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/build.gradle b/prebuilts/gradle/RuntimePermissionsBasic/build.gradle
new file mode 100644
index 0000000..1dac6de
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/RuntimePermissionsBasic/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/RuntimePermissionsBasic/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..8a27ebf
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Sun Dec 07 22:52:45 JST 2014
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/gradlew b/prebuilts/gradle/RuntimePermissionsBasic/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/gradlew.bat b/prebuilts/gradle/RuntimePermissionsBasic/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/screenshots/big_icon.png b/prebuilts/gradle/RuntimePermissionsBasic/screenshots/big_icon.png
new file mode 100644
index 0000000..14c53b6
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/screenshots/big_icon.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/screenshots/screenshot-1.png b/prebuilts/gradle/RuntimePermissionsBasic/screenshots/screenshot-1.png
new file mode 100644
index 0000000..6c31c38
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/screenshots/screenshot-1.png
Binary files differ
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/settings.gradle b/prebuilts/gradle/RuntimePermissionsBasic/settings.gradle
new file mode 100644
index 0000000..9464a35
--- /dev/null
+++ b/prebuilts/gradle/RuntimePermissionsBasic/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/ScreenCapture/Application/build.gradle b/prebuilts/gradle/ScreenCapture/Application/build.gradle
index c280a8d..d61ba60 100644
--- a/prebuilts/gradle/ScreenCapture/Application/build.gradle
+++ b/prebuilts/gradle/ScreenCapture/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/ScreenCapture/NOTICE b/prebuilts/gradle/ScreenCapture/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/ScreenCapture/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SkeletonWearableApp/Wearable/build.gradle b/prebuilts/gradle/SkeletonWearableApp/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/SkeletonWearableApp/Wearable/build.gradle
+++ b/prebuilts/gradle/SkeletonWearableApp/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SlidingTabsBasic/Application/build.gradle b/prebuilts/gradle/SlidingTabsBasic/Application/build.gradle
index 9f7c8dc..c9fe712 100644
--- a/prebuilts/gradle/SlidingTabsBasic/Application/build.gradle
+++ b/prebuilts/gradle/SlidingTabsBasic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SlidingTabsBasic/NOTICE b/prebuilts/gradle/SlidingTabsBasic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/SlidingTabsBasic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SlidingTabsColors/Application/build.gradle b/prebuilts/gradle/SlidingTabsColors/Application/build.gradle
index 9f7c8dc..c9fe712 100644
--- a/prebuilts/gradle/SlidingTabsColors/Application/build.gradle
+++ b/prebuilts/gradle/SlidingTabsColors/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SlidingTabsColors/NOTICE b/prebuilts/gradle/SlidingTabsColors/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/SlidingTabsColors/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SpeedTracker/Application/build.gradle b/prebuilts/gradle/SpeedTracker/Application/build.gradle
index c28d0c9..544de3c 100644
--- a/prebuilts/gradle/SpeedTracker/Application/build.gradle
+++ b/prebuilts/gradle/SpeedTracker/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SpeedTracker/NOTICE b/prebuilts/gradle/SpeedTracker/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/SpeedTracker/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SpeedTracker/Shared/build.gradle b/prebuilts/gradle/SpeedTracker/Shared/build.gradle
index c534170..2c7fe14 100644
--- a/prebuilts/gradle/SpeedTracker/Shared/build.gradle
+++ b/prebuilts/gradle/SpeedTracker/Shared/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SpeedTracker/Wearable/build.gradle b/prebuilts/gradle/SpeedTracker/Wearable/build.gradle
index 1e5f1b5..534d213 100644
--- a/prebuilts/gradle/SpeedTracker/Wearable/build.gradle
+++ b/prebuilts/gradle/SpeedTracker/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/StorageClient/Application/build.gradle b/prebuilts/gradle/StorageClient/Application/build.gradle
index c6cf83d..c45e507 100644
--- a/prebuilts/gradle/StorageClient/Application/build.gradle
+++ b/prebuilts/gradle/StorageClient/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/StorageClient/NOTICE b/prebuilts/gradle/StorageClient/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/StorageClient/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/StorageProvider/Application/build.gradle b/prebuilts/gradle/StorageProvider/Application/build.gradle
index cedf6c9..db9a58b 100644
--- a/prebuilts/gradle/StorageProvider/Application/build.gradle
+++ b/prebuilts/gradle/StorageProvider/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/StorageProvider/NOTICE b/prebuilts/gradle/StorageProvider/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/StorageProvider/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SwipeRefreshLayoutBasic/Application/build.gradle b/prebuilts/gradle/SwipeRefreshLayoutBasic/Application/build.gradle
index 9f7c8dc..c9fe712 100644
--- a/prebuilts/gradle/SwipeRefreshLayoutBasic/Application/build.gradle
+++ b/prebuilts/gradle/SwipeRefreshLayoutBasic/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SwipeRefreshLayoutBasic/NOTICE b/prebuilts/gradle/SwipeRefreshLayoutBasic/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/SwipeRefreshLayoutBasic/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SwipeRefreshListFragment/Application/build.gradle b/prebuilts/gradle/SwipeRefreshListFragment/Application/build.gradle
index 9f7c8dc..c9fe712 100644
--- a/prebuilts/gradle/SwipeRefreshListFragment/Application/build.gradle
+++ b/prebuilts/gradle/SwipeRefreshListFragment/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SwipeRefreshListFragment/NOTICE b/prebuilts/gradle/SwipeRefreshListFragment/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/SwipeRefreshListFragment/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SwipeRefreshMultipleViews/Application/build.gradle b/prebuilts/gradle/SwipeRefreshMultipleViews/Application/build.gradle
index 9f7c8dc..c9fe712 100644
--- a/prebuilts/gradle/SwipeRefreshMultipleViews/Application/build.gradle
+++ b/prebuilts/gradle/SwipeRefreshMultipleViews/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SwipeRefreshMultipleViews/NOTICE b/prebuilts/gradle/SwipeRefreshMultipleViews/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/SwipeRefreshMultipleViews/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SynchronizedNotifications/Application/build.gradle b/prebuilts/gradle/SynchronizedNotifications/Application/build.gradle
index 253d832..05910d2 100644
--- a/prebuilts/gradle/SynchronizedNotifications/Application/build.gradle
+++ b/prebuilts/gradle/SynchronizedNotifications/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SynchronizedNotifications/NOTICE b/prebuilts/gradle/SynchronizedNotifications/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/SynchronizedNotifications/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/SynchronizedNotifications/Shared/build.gradle b/prebuilts/gradle/SynchronizedNotifications/Shared/build.gradle
index c534170..2c7fe14 100644
--- a/prebuilts/gradle/SynchronizedNotifications/Shared/build.gradle
+++ b/prebuilts/gradle/SynchronizedNotifications/Shared/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/SynchronizedNotifications/Wearable/build.gradle b/prebuilts/gradle/SynchronizedNotifications/Wearable/build.gradle
index d2947a8..5cd7813 100644
--- a/prebuilts/gradle/SynchronizedNotifications/Wearable/build.gradle
+++ b/prebuilts/gradle/SynchronizedNotifications/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/TextLinkify/Application/build.gradle b/prebuilts/gradle/TextLinkify/Application/build.gradle
index eb1a23c..672e647 100644
--- a/prebuilts/gradle/TextLinkify/Application/build.gradle
+++ b/prebuilts/gradle/TextLinkify/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/TextLinkify/NOTICE b/prebuilts/gradle/TextLinkify/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/TextLinkify/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/TextSwitcher/Application/build.gradle b/prebuilts/gradle/TextSwitcher/Application/build.gradle
index eb1a23c..672e647 100644
--- a/prebuilts/gradle/TextSwitcher/Application/build.gradle
+++ b/prebuilts/gradle/TextSwitcher/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/TextSwitcher/NOTICE b/prebuilts/gradle/TextSwitcher/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/TextSwitcher/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/Timer/Wearable/build.gradle b/prebuilts/gradle/Timer/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/Timer/Wearable/build.gradle
+++ b/prebuilts/gradle/Timer/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/WatchFace/Application/build.gradle b/prebuilts/gradle/WatchFace/Application/build.gradle
index 15795d8..3e2bee7 100644
--- a/prebuilts/gradle/WatchFace/Application/build.gradle
+++ b/prebuilts/gradle/WatchFace/Application/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/WatchFace/NOTICE b/prebuilts/gradle/WatchFace/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/WatchFace/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/prebuilts/gradle/WatchFace/Wearable/build.gradle b/prebuilts/gradle/WatchFace/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/WatchFace/Wearable/build.gradle
+++ b/prebuilts/gradle/WatchFace/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/WatchFace/Wearable/src/main/java/com/example/android/wearable/watchface/DigitalWatchFaceService.java b/prebuilts/gradle/WatchFace/Wearable/src/main/java/com/example/android/wearable/watchface/DigitalWatchFaceService.java
index a661cdc..0a9eff2 100644
--- a/prebuilts/gradle/WatchFace/Wearable/src/main/java/com/example/android/wearable/watchface/DigitalWatchFaceService.java
+++ b/prebuilts/gradle/WatchFace/Wearable/src/main/java/com/example/android/wearable/watchface/DigitalWatchFaceService.java
@@ -569,27 +569,23 @@
 
         @Override // DataApi.DataListener
         public void onDataChanged(DataEventBuffer dataEvents) {
-            try {
-                for (DataEvent dataEvent : dataEvents) {
-                    if (dataEvent.getType() != DataEvent.TYPE_CHANGED) {
-                        continue;
-                    }
-
-                    DataItem dataItem = dataEvent.getDataItem();
-                    if (!dataItem.getUri().getPath().equals(
-                            DigitalWatchFaceUtil.PATH_WITH_FEATURE)) {
-                        continue;
-                    }
-
-                    DataMapItem dataMapItem = DataMapItem.fromDataItem(dataItem);
-                    DataMap config = dataMapItem.getDataMap();
-                    if (Log.isLoggable(TAG, Log.DEBUG)) {
-                        Log.d(TAG, "Config DataItem updated:" + config);
-                    }
-                    updateUiForConfigDataMap(config);
+            for (DataEvent dataEvent : dataEvents) {
+                if (dataEvent.getType() != DataEvent.TYPE_CHANGED) {
+                    continue;
                 }
-            } finally {
-                dataEvents.close();
+
+                DataItem dataItem = dataEvent.getDataItem();
+                if (!dataItem.getUri().getPath().equals(
+                        DigitalWatchFaceUtil.PATH_WITH_FEATURE)) {
+                    continue;
+                }
+
+                DataMapItem dataMapItem = DataMapItem.fromDataItem(dataItem);
+                DataMap config = dataMapItem.getDataMap();
+                if (Log.isLoggable(TAG, Log.DEBUG)) {
+                    Log.d(TAG, "Config DataItem updated:" + config);
+                }
+                updateUiForConfigDataMap(config);
             }
         }
 
diff --git a/prebuilts/gradle/WatchViewStub/Wearable/build.gradle b/prebuilts/gradle/WatchViewStub/Wearable/build.gradle
index 83ca0d5..e686405 100644
--- a/prebuilts/gradle/WatchViewStub/Wearable/build.gradle
+++ b/prebuilts/gradle/WatchViewStub/Wearable/build.gradle
@@ -5,7 +5,7 @@
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.0'
     }
 }
 
diff --git a/prebuilts/gradle/XYZTouristAttractions/NOTICE b/prebuilts/gradle/XYZTouristAttractions/NOTICE
deleted file mode 100644
index 05e0e2e..0000000
--- a/prebuilts/gradle/XYZTouristAttractions/NOTICE
+++ /dev/null
@@ -1,16 +0,0 @@
-
-This sample uses the following software:
-
-Copyright 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/templates/base/NOTICE.ftl b/templates/base/NOTICE.ftl
deleted file mode 100644
index d748f75..0000000
--- a/templates/base/NOTICE.ftl
+++ /dev/null
@@ -1,37 +0,0 @@
-<#ftl>
-<#assign date = .now?date>
-This sample uses the following software:
-
-Copyright ${date?string.yyyy} The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-<#if sample.attribution?has_content>
-<#list sample.attribution as attribution>
-
-${attribution.copyright}
-
-<#if attribution.license = "APACHE2">
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-</#if>
-</#list>
-</#if>
diff --git a/templates/base/_MODULE_/build.gradle.ftl b/templates/base/_MODULE_/build.gradle.ftl
index 6440990..9bbf577 100644
--- a/templates/base/_MODULE_/build.gradle.ftl
+++ b/templates/base/_MODULE_/build.gradle.ftl
@@ -79,7 +79,11 @@
 
     defaultConfig {
         minSdkVersion ${min_sdk}
+      <#if sample.targetSdkVersion?? && sample.targetSdkVersion?has_content>
+        targetSdkVersion ${sample.targetSdkVersion}
+      <#else>
         targetSdkVersion ${compile_sdk}
+      </#if>
     }
 
     compileOptions {