Add new action bar demos:

- Buttons for showing/hiding action bar and system UI
  in the basic action bar demo.
- New system UI demo that uses a non-overlay action bar.

Change-Id: Id3fbaa77365476489c558a2a43855a01f383551c
diff --git a/samples/ApiDemos/AndroidManifest.xml b/samples/ApiDemos/AndroidManifest.xml
index acfe9f9..815cc06 100644
--- a/samples/ApiDemos/AndroidManifest.xml
+++ b/samples/ApiDemos/AndroidManifest.xml
@@ -2308,7 +2308,18 @@
 
         <activity android:name=".view.SystemUIModes"
                 android:label="Views/System UI Visibility/System UI Modes"
-                android:uiOptions="splitActionBarWhenNarrow">
+                android:uiOptions="splitActionBarWhenNarrow"
+                android:enabled="@bool/atLeastJellyBeanMR2">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.SAMPLE_CODE" />
+            </intent-filter>
+        </activity>
+
+        <activity android:name=".view.SystemUIModesOverlay"
+                android:label="Views/System UI Visibility/System UI Modes Overlay"
+                android:uiOptions="splitActionBarWhenNarrow"
+                android:enabled="@bool/atLeastJellyBean">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.SAMPLE_CODE" />
@@ -2318,7 +2329,8 @@
         <activity android:name=".view.ContentBrowserActivity"
                 android:label="Views/System UI Visibility/Content Browser"
                 android:theme="@android:style/Theme.Holo.Light.DarkActionBar"
-                android:uiOptions="splitActionBarWhenNarrow">
+                android:uiOptions="splitActionBarWhenNarrow"
+                android:enabled="@bool/atLeastJellyBean">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.SAMPLE_CODE" />
@@ -2328,7 +2340,8 @@
         <activity android:name=".view.VideoPlayerActivity"
                 android:label="Views/System UI Visibility/Video Player"
                 android:theme="@android:style/Theme.Holo"
-                android:uiOptions="splitActionBarWhenNarrow">
+                android:uiOptions="splitActionBarWhenNarrow"
+                android:enabled="@bool/atLeastJellyBean">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.SAMPLE_CODE" />
diff --git a/samples/ApiDemos/res/layout/action_bar_display_options.xml b/samples/ApiDemos/res/layout/action_bar_display_options.xml
index 1718fdb..d4216f5 100644
--- a/samples/ApiDemos/res/layout/action_bar_display_options.xml
+++ b/samples/ApiDemos/res/layout/action_bar_display_options.xml
@@ -13,36 +13,47 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
               android:layout_width="match_parent"
-              android:layout_height="match_parent"
-              android:orientation="vertical">
-    <Button android:id="@+id/toggle_home_as_up"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/toggle_home_as_up" />
-    <Button android:id="@+id/toggle_show_home"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/toggle_show_home" />
-    <Button android:id="@+id/toggle_use_logo"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/toggle_use_logo" />
-    <Button android:id="@+id/toggle_show_title"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/toggle_show_title" />
-    <Button android:id="@+id/toggle_show_custom"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/toggle_show_custom" />
-    <Button android:id="@+id/toggle_navigation"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/toggle_navigation" />
-    <Button android:id="@+id/cycle_custom_gravity"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/cycle_custom_gravity" />
-</LinearLayout>
+              android:layout_height="match_parent">
+    <LinearLayout android:layout_width="match_parent"
+                  android:layout_height="match_parent"
+                  android:orientation="vertical">
+        <Button android:id="@+id/toggle_home_as_up"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/toggle_home_as_up" />
+        <Button android:id="@+id/toggle_show_home"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/toggle_show_home" />
+        <Button android:id="@+id/toggle_use_logo"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/toggle_use_logo" />
+        <Button android:id="@+id/toggle_show_title"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/toggle_show_title" />
+        <Button android:id="@+id/toggle_show_custom"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/toggle_show_custom" />
+        <Button android:id="@+id/toggle_navigation"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/toggle_navigation" />
+        <Button android:id="@+id/cycle_custom_gravity"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/cycle_custom_gravity" />
+        <Button android:id="@+id/toggle_visibility"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/toggle_visibility" />
+        <Button android:id="@+id/toggle_system_ui"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/toggle_system_ui" />
+    </LinearLayout>
+</ScrollView>
\ No newline at end of file
diff --git a/samples/ApiDemos/res/values/strings.xml b/samples/ApiDemos/res/values/strings.xml
index f673e31..c9c347e 100644
--- a/samples/ApiDemos/res/values/strings.xml
+++ b/samples/ApiDemos/res/values/strings.xml
@@ -847,6 +847,8 @@
     <string name="toggle_show_custom">DISPLAY_SHOW_CUSTOM</string>
     <string name="toggle_navigation">Navigation</string>
     <string name="cycle_custom_gravity">Cycle Custom View Gravity</string>
+    <string name="toggle_visibility">Toggle Visibility</string>
+    <string name="toggle_system_ui">Toggle System UI</string>
 
     <string name="display_options_custom_button">Custom View!</string>
     <string name="display_options_menu_item">Menu Item</string>
diff --git a/samples/ApiDemos/src/com/example/android/apis/app/ActionBarDisplayOptions.java b/samples/ApiDemos/src/com/example/android/apis/app/ActionBarDisplayOptions.java
index 257f0cd..73d8db9 100644
--- a/samples/ApiDemos/src/com/example/android/apis/app/ActionBarDisplayOptions.java
+++ b/samples/ApiDemos/src/com/example/android/apis/app/ActionBarDisplayOptions.java
@@ -46,6 +46,8 @@
         findViewById(R.id.toggle_show_custom).setOnClickListener(this);
         findViewById(R.id.toggle_navigation).setOnClickListener(this);
         findViewById(R.id.cycle_custom_gravity).setOnClickListener(this);
+        findViewById(R.id.toggle_visibility).setOnClickListener(this);
+        findViewById(R.id.toggle_system_ui).setOnClickListener(this);
 
         mCustomView = getLayoutInflater().inflate(R.layout.action_bar_display_options_custom, null);
         // Configure several action bar elements that will be toggled by display options.
@@ -107,6 +109,22 @@
                 lp.gravity = lp.gravity & ~Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK | newGravity;
                 bar.setCustomView(mCustomView, lp);
                 return;
+            case R.id.toggle_visibility:
+                if (bar.isShowing()) {
+                    bar.hide();
+                } else {
+                    bar.show();
+                }
+                return;
+            case R.id.toggle_system_ui:
+                if ((getWindow().getDecorView().getSystemUiVisibility()
+                        & View.SYSTEM_UI_FLAG_FULLSCREEN) != 0) {
+                    getWindow().getDecorView().setSystemUiVisibility(0);
+                } else {
+                    getWindow().getDecorView().setSystemUiVisibility(
+                            View.SYSTEM_UI_FLAG_FULLSCREEN);
+                }
+                return;
         }
 
         int change = bar.getDisplayOptions() ^ flags;
diff --git a/samples/ApiDemos/src/com/example/android/apis/view/SystemUIModes.java b/samples/ApiDemos/src/com/example/android/apis/view/SystemUIModes.java
index 7b43973..730534a 100644
--- a/samples/ApiDemos/src/com/example/android/apis/view/SystemUIModes.java
+++ b/samples/ApiDemos/src/com/example/android/apis/view/SystemUIModes.java
@@ -166,8 +166,6 @@
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        getWindow().requestFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
-
         setContentView(R.layout.system_ui_modes);
         mImage = (IV) findViewById(R.id.image);
         mImage.setActivity(this);
diff --git a/samples/ApiDemos/src/com/example/android/apis/view/SystemUIModesOverlay.java b/samples/ApiDemos/src/com/example/android/apis/view/SystemUIModesOverlay.java
new file mode 100644
index 0000000..73eadb1
--- /dev/null
+++ b/samples/ApiDemos/src/com/example/android/apis/view/SystemUIModesOverlay.java
@@ -0,0 +1,31 @@
+/*
+ * 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.apis.view;
+
+import android.os.Bundle;
+import android.view.Window;
+
+/**
+ * Version of demo that uses the action bar in overlay mode.
+ */
+public class SystemUIModesOverlay extends SystemUIModes {
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        getWindow().requestFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
+        super.onCreate(savedInstanceState);
+    }
+}