DO NOT MERGE - Merge pie-platform-release (PPRL.181205.001) into master
Bug: 120502534
Change-Id: Ie2c27480f248101768cb79e25ea6c10585584f14
diff --git a/prebuilts/gradle/WifiRttScan/.gitignore b/prebuilts/gradle/WifiRttScan/.gitignore
new file mode 100644
index 0000000..b90e756
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/.gitignore
@@ -0,0 +1,33 @@
+# built application files
+*.apk
+*.ap_
+
+# files for the dex VM
+*.dex
+
+# Java class files
+*.class
+
+# generated files
+bin/
+gen/
+
+# Ignore gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+proguard-project.txt
+
+# Eclipse files
+.project
+.classpath
+.settings/
+
+# Android Studio/IDEA
+*.iml
+.idea
diff --git a/prebuilts/gradle/WifiRttScan/.google/packaging.yaml b/prebuilts/gradle/WifiRttScan/.google/packaging.yaml
new file mode 100644
index 0000000..f33a18a
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/.google/packaging.yaml
@@ -0,0 +1,34 @@
+# Copyright 2018 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# 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: PUBLISHED
+technologies: [Android]
+categories: [Connectivity]
+languages: [Java]
+solutions: [Mobile]
+github: android-WifiRttScan
+level: ADVANCED
+icon: screenshots/big_icon.png
+apiRefs:
+ - android:android.net.wifi.ScanResult
+ - android:android.net.wifi.WifiManager
+ - android:android.net.wifi.rtt.RangingRequest
+ - android:android.net.wifi.rtt.RangingResult
+ - android:android.net.wifi.rtt.RangingResultCallback
+ - android:android.net.wifi.rtt.WifiRttManager
+license: apache2
diff --git a/prebuilts/gradle/WifiRttScan/Application/build.gradle b/prebuilts/gradle/WifiRttScan/Application/build.gradle
new file mode 100644
index 0000000..4beb9cb
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/build.gradle
@@ -0,0 +1,66 @@
+
+buildscript {
+ repositories {
+ jcenter()
+ google()
+ }
+
+ dependencies {
+ classpath 'com.android.tools.build:gradle:3.2.0-beta01'
+ }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+ jcenter()
+ google()
+}
+
+dependencies {
+
+
+ implementation 'androidx.appcompat:appcompat:1.0.0-beta01'
+ implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha1'
+ implementation 'com.google.android.material:material:1.0.0-beta01'
+
+
+
+}
+
+// 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 28
+
+ buildToolsVersion "27.0.3"
+
+ defaultConfig {
+ minSdkVersion 28
+ targetSdkVersion 28
+ }
+
+ 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/WifiRttScan/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..b35cea6
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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.wifirttscan"
+ android:versionCode="1"
+ android:versionName="1.0">
+
+ <uses-feature android:name="android.hardware.wifi.rtt" />
+
+ <!-- Permissions required for Wifi RTT. -->
+ <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+ <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+ <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
+
+ <application
+ android:allowBackup="true"
+ android:icon="@mipmap/ic_launcher"
+ android:label="@string/app_name"
+ android:roundIcon="@mipmap/ic_launcher_round"
+ android:supportsRtl="true"
+ android:theme="@style/CustomAppTheme">
+
+ <activity
+ android:name=".MainActivity"
+ android:label="@string/app_name"
+ android:theme="@style/CustomAppTheme">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+
+ <activity
+ android:name=".LocationPermissionRequestActivity"
+ android:label="@string/title_activity_location_permission_request"
+ android:parentActivityName=".MainActivity"
+ android:theme="@style/CustomAppTheme">
+ </activity>
+
+ <activity android:name=".AccessPointRangingResultsActivity"
+ android:label="@string/title_activity_access_point_ranging_results"
+ android:parentActivityName=".MainActivity"
+ android:theme="@style/CustomAppTheme">
+ </activity>
+ </application>
+</manifest>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/AccessPointRangingResultsActivity.java b/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/AccessPointRangingResultsActivity.java
new file mode 100644
index 0000000..eb148c9
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/AccessPointRangingResultsActivity.java
@@ -0,0 +1,334 @@
+/*
+ * Copyright (C) 2018 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.wifirttscan;
+
+import android.Manifest.permission;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.net.wifi.ScanResult;
+import android.net.wifi.rtt.RangingRequest;
+import android.net.wifi.rtt.RangingResult;
+import android.net.wifi.rtt.RangingResultCallback;
+import android.net.wifi.rtt.WifiRttManager;
+import android.os.Bundle;
+import android.os.Handler;
+import androidx.annotation.NonNull;
+import androidx.core.app.ActivityCompat;
+import androidx.appcompat.app.AppCompatActivity;
+import android.util.Log;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Displays ranging information about a particular access point chosen by the user. Uses {@link
+ * Handler} to trigger new requests based on
+ */
+public class AccessPointRangingResultsActivity extends AppCompatActivity {
+ private static final String TAG = "APRRActivity";
+
+ public static final String SCAN_RESULT_EXTRA =
+ "com.example.android.wifirttscan.extra.SCAN_RESULT";
+
+ private static final int SAMPLE_SIZE_DEFAULT = 50;
+ private static final int MILLISECONDS_DELAY_BEFORE_NEW_RANGING_REQUEST_DEFAULT = 1000;
+
+ // UI Elements.
+ private TextView mSsidTextView;
+ private TextView mBssidTextView;
+
+ private TextView mRangeTextView;
+ private TextView mRangeMeanTextView;
+ private TextView mRangeSDTextView;
+ private TextView mRangeSDMeanTextView;
+ private TextView mRssiTextView;
+ private TextView mSuccessesInBurstTextView;
+ private TextView mSuccessRatioTextView;
+ private TextView mNumberOfRequestsTextView;
+
+ private EditText mSampleSizeEditText;
+ private EditText mMillisecondsDelayBeforeNewRangingRequestEditText;
+
+ // Non UI variables.
+ private ScanResult mScanResult;
+ private String mMAC;
+
+ private int mNumberOfRangeRequests;
+ private int mNumberOfSuccessfulRangeRequests;
+
+ private int mMillisecondsDelayBeforeNewRangingRequest;
+
+ // Max sample size to calculate average for
+ // 1. Distance to device (getDistanceMm) over time
+ // 2. Standard deviation of the measured distance to the device (getDistanceStdDevMm) over time
+ // Note: A RangeRequest result already consists of the average of 7 readings from a burst,
+ // so the average in (1) is the average of these averages.
+ private int mSampleSize;
+
+ // Used to loop over a list of distances to calculate averages (ensures data structure never
+ // get larger than sample size).
+ private int mStatisticRangeHistoryEndIndex;
+ private ArrayList<Integer> mStatisticRangeHistory;
+
+ // Used to loop over a list of the standard deviation of the measured distance to calculate
+ // averages (ensures data structure never get larger than sample size).
+ private int mStatisticRangeSDHistoryEndIndex;
+ private ArrayList<Integer> mStatisticRangeSDHistory;
+
+ private WifiRttManager mWifiRttManager;
+ private RttRangingResultCallback mRttRangingResultCallback;
+
+ // Triggers additional RangingRequests with delay (mMillisecondsDelayBeforeNewRangingRequest).
+ final Handler mRangeRequestDelayHandler = new Handler();
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_access_point_ranging_results);
+
+ // Initializes UI elements.
+ mSsidTextView = findViewById(R.id.ssid);
+ mBssidTextView = findViewById(R.id.bssid);
+
+ mRangeTextView = findViewById(R.id.range_value);
+ mRangeMeanTextView = findViewById(R.id.range_mean_value);
+ mRangeSDTextView = findViewById(R.id.range_sd_value);
+ mRangeSDMeanTextView = findViewById(R.id.range_sd_mean_value);
+ mRssiTextView = findViewById(R.id.rssi_value);
+ mSuccessesInBurstTextView = findViewById(R.id.successes_in_burst_value);
+ mSuccessRatioTextView = findViewById(R.id.success_ratio_value);
+ mNumberOfRequestsTextView = findViewById(R.id.number_of_requests_value);
+
+ mSampleSizeEditText = findViewById(R.id.stats_window_size_edit_value);
+ mSampleSizeEditText.setText(SAMPLE_SIZE_DEFAULT + "");
+
+ mMillisecondsDelayBeforeNewRangingRequestEditText =
+ findViewById(R.id.ranging_period_edit_value);
+ mMillisecondsDelayBeforeNewRangingRequestEditText.setText(
+ MILLISECONDS_DELAY_BEFORE_NEW_RANGING_REQUEST_DEFAULT + "");
+
+ // Retrieve ScanResult from Intent.
+ Intent intent = getIntent();
+ mScanResult = intent.getParcelableExtra(SCAN_RESULT_EXTRA);
+
+ if (mScanResult == null) {
+ finish();
+ }
+
+ mMAC = mScanResult.BSSID;
+
+ mSsidTextView.setText(mScanResult.SSID);
+ mBssidTextView.setText(mScanResult.BSSID);
+
+ mWifiRttManager = (WifiRttManager) getSystemService(Context.WIFI_RTT_RANGING_SERVICE);
+ mRttRangingResultCallback = new RttRangingResultCallback();
+
+ // Used to store range (distance) and rangeSd (standard deviation of the measured distance)
+ // history to calculate averages.
+ mStatisticRangeHistory = new ArrayList<>();
+ mStatisticRangeSDHistory = new ArrayList<>();
+
+ resetData();
+
+ startRangingRequest();
+ }
+
+ private void resetData() {
+ mSampleSize = Integer.parseInt(mSampleSizeEditText.getText().toString());
+
+ mMillisecondsDelayBeforeNewRangingRequest =
+ Integer.parseInt(
+ mMillisecondsDelayBeforeNewRangingRequestEditText.getText().toString());
+
+ mNumberOfSuccessfulRangeRequests = 0;
+ mNumberOfRangeRequests = 0;
+
+ mStatisticRangeHistoryEndIndex = 0;
+ mStatisticRangeHistory.clear();
+
+ mStatisticRangeSDHistoryEndIndex = 0;
+ mStatisticRangeSDHistory.clear();
+ }
+
+ private void startRangingRequest() {
+ // Permission for fine location should already be granted via MainActivity (you can't get
+ // to this class unless you already have permission. If they get to this class, then disable
+ // fine location permission, we kick them back to main activity.
+ if (ActivityCompat.checkSelfPermission(this, permission.ACCESS_FINE_LOCATION)
+ != PackageManager.PERMISSION_GRANTED) {
+ finish();
+ }
+
+ mNumberOfRangeRequests++;
+
+ RangingRequest rangingRequest =
+ new RangingRequest.Builder().addAccessPoint(mScanResult).build();
+
+ mWifiRttManager.startRanging(
+ rangingRequest, getApplication().getMainExecutor(), mRttRangingResultCallback);
+ }
+
+ // Calculates average distance based on stored history.
+ private float getDistanceMean() {
+ float distanceSum = 0;
+
+ for (int distance : mStatisticRangeHistory) {
+ distanceSum += distance;
+ }
+
+ return distanceSum / mStatisticRangeHistory.size();
+ }
+
+ // Adds distance to history. If larger than sample size value, loops back over and replaces the
+ // oldest distance record in the list.
+ private void addDistanceToHistory(int distance) {
+
+ if (mStatisticRangeHistory.size() >= mSampleSize) {
+
+ if (mStatisticRangeHistoryEndIndex >= mSampleSize) {
+ mStatisticRangeHistoryEndIndex = 0;
+ }
+
+ mStatisticRangeHistory.set(mStatisticRangeHistoryEndIndex, distance);
+ mStatisticRangeHistoryEndIndex++;
+
+ } else {
+ mStatisticRangeHistory.add(distance);
+ }
+ }
+
+ // Calculates standard deviation of the measured distance based on stored history.
+ private float getStandardDeviationOfDistanceMean() {
+ float distanceSdSum = 0;
+
+ for (int distanceSd : mStatisticRangeSDHistory) {
+ distanceSdSum += distanceSd;
+ }
+
+ return distanceSdSum / mStatisticRangeHistory.size();
+ }
+
+ // Adds standard deviation of the measured distance to history. If larger than sample size
+ // value, loops back over and replaces the oldest distance record in the list.
+ private void addStandardDeviationOfDistanceToHistory(int distanceSd) {
+
+ if (mStatisticRangeSDHistory.size() >= mSampleSize) {
+
+ if (mStatisticRangeSDHistoryEndIndex >= mSampleSize) {
+ mStatisticRangeSDHistoryEndIndex = 0;
+ }
+
+ mStatisticRangeSDHistory.set(mStatisticRangeSDHistoryEndIndex, distanceSd);
+ mStatisticRangeSDHistoryEndIndex++;
+
+ } else {
+ mStatisticRangeSDHistory.add(distanceSd);
+ }
+ }
+
+ public void onResetButtonClick(View view) {
+ resetData();
+ }
+
+ // Class that handles callbacks for all RangingRequests and issues new RangingRequests.
+ private class RttRangingResultCallback extends RangingResultCallback {
+
+ private void queueNextRangingRequest() {
+ mRangeRequestDelayHandler.postDelayed(
+ new Runnable() {
+ @Override
+ public void run() {
+ startRangingRequest();
+ }
+ },
+ mMillisecondsDelayBeforeNewRangingRequest);
+ }
+
+ @Override
+ public void onRangingFailure(int code) {
+ Log.d(TAG, "onRangingFailure() code: " + code);
+ queueNextRangingRequest();
+ }
+
+ @Override
+ public void onRangingResults(@NonNull List<RangingResult> list) {
+ Log.d(TAG, "onRangingResults(): " + list);
+
+ // Because we are only requesting RangingResult for one access point (not multiple
+ // access points), this will only ever be one. (Use loops when requesting RangingResults
+ // for multiple access points.)
+ if (list.size() == 1) {
+
+ RangingResult rangingResult = list.get(0);
+
+ if (mMAC.equals(rangingResult.getMacAddress().toString())) {
+
+ if (rangingResult.getStatus() == RangingResult.STATUS_SUCCESS) {
+
+ mNumberOfSuccessfulRangeRequests++;
+
+ mRangeTextView.setText((rangingResult.getDistanceMm() / 1000f) + "");
+ addDistanceToHistory(rangingResult.getDistanceMm());
+ mRangeMeanTextView.setText((getDistanceMean() / 1000f) + "");
+
+ mRangeSDTextView.setText(
+ (rangingResult.getDistanceStdDevMm() / 1000f) + "");
+ addStandardDeviationOfDistanceToHistory(
+ rangingResult.getDistanceStdDevMm());
+ mRangeSDMeanTextView.setText(
+ (getStandardDeviationOfDistanceMean() / 1000f) + "");
+
+ mRssiTextView.setText(rangingResult.getRssi() + "");
+ mSuccessesInBurstTextView.setText(
+ rangingResult.getNumSuccessfulMeasurements()
+ + "/"
+ + rangingResult.getNumAttemptedMeasurements());
+
+ float successRatio =
+ ((float) mNumberOfSuccessfulRangeRequests
+ / (float) mNumberOfRangeRequests)
+ * 100;
+ mSuccessRatioTextView.setText(successRatio + "%");
+
+ mNumberOfRequestsTextView.setText(mNumberOfRangeRequests + "");
+
+ } else if (rangingResult.getStatus()
+ == RangingResult.STATUS_RESPONDER_DOES_NOT_SUPPORT_IEEE80211MC) {
+ Log.d(TAG, "RangingResult failed (AP doesn't support IEEE80211 MC.");
+
+ } else {
+ Log.d(TAG, "RangingResult failed.");
+ }
+
+ } else {
+ Toast.makeText(
+ getApplicationContext(),
+ R.string
+ .mac_mismatch_message_activity_access_point_ranging_results,
+ Toast.LENGTH_LONG)
+ .show();
+ }
+ }
+
+ queueNextRangingRequest();
+ }
+ }
+}
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/LocationPermissionRequestActivity.java b/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/LocationPermissionRequestActivity.java
new file mode 100644
index 0000000..170eceb
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/LocationPermissionRequestActivity.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2018 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.wifirttscan;
+
+import android.Manifest;
+import android.Manifest.permission;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import androidx.annotation.NonNull;
+import androidx.core.app.ActivityCompat;
+import androidx.appcompat.app.AppCompatActivity;
+import android.util.Log;
+import android.view.View;
+
+/**
+ * This is a simple splash screen (activity) for giving more details on why the user should approve
+ * fine location permissions. If they choose to move forward, the permission screen is brought up.
+ * Either way (approve or disapprove), this will exit to the MainActivity after they are finished
+ * with their final decision.
+ */
+public class LocationPermissionRequestActivity extends AppCompatActivity
+ implements ActivityCompat.OnRequestPermissionsResultCallback {
+
+ private static final String TAG = "LocationPermission";
+
+ /* Id to identify Location permission request. */
+ private static final int PERMISSION_REQUEST_FINE_LOCATION = 1;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+
+ // If permissions granted, we start the main activity (shut this activity down).
+ if (ActivityCompat.checkSelfPermission(this, permission.ACCESS_FINE_LOCATION)
+ == PackageManager.PERMISSION_GRANTED) {
+ finish();
+ }
+
+ setContentView(R.layout.activity_location_permission_request);
+ }
+
+ public void onClickApprovePermissionRequest(View view) {
+ Log.d(TAG, "onClickApprovePermissionRequest()");
+
+ // On 23+ (M+) devices, fine location permission not granted. Request permission.
+ ActivityCompat.requestPermissions(
+ this,
+ new String[] {Manifest.permission.ACCESS_FINE_LOCATION},
+ PERMISSION_REQUEST_FINE_LOCATION);
+ }
+
+ public void onClickDenyPermissionRequest(View view) {
+ Log.d(TAG, "onClickDenyPermissionRequest()");
+ finish();
+ }
+
+ /*
+ * Callback received when a permissions request has been completed.
+ */
+ @Override
+ public void onRequestPermissionsResult(
+ int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+
+ String permissionResult =
+ "Request code: "
+ + requestCode
+ + ", Permissions: "
+ + permissions
+ + ", Results: "
+ + grantResults;
+ Log.d(TAG, "onRequestPermissionsResult(): " + permissionResult);
+
+ if (requestCode == PERMISSION_REQUEST_FINE_LOCATION) {
+ // Close activity regardless of user's decision (decision picked up in main activity).
+ finish();
+ }
+ }
+}
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/MainActivity.java b/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/MainActivity.java
new file mode 100644
index 0000000..b6905bf
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/MainActivity.java
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2018 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.wifirttscan;
+
+import static com.example.android.wifirttscan.AccessPointRangingResultsActivity.SCAN_RESULT_EXTRA;
+
+import android.Manifest.permission;
+import android.annotation.SuppressLint;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageManager;
+import android.net.wifi.ScanResult;
+import android.net.wifi.WifiManager;
+import android.net.wifi.rtt.RangingRequest;
+import android.os.Bundle;
+import androidx.annotation.NonNull;
+import androidx.core.app.ActivityCompat;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.RecyclerView.LayoutManager;
+import android.util.Log;
+import android.view.View;
+import android.widget.TextView;
+
+import com.example.android.wifirttscan.MyAdapter.ScanResultClickListener;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Displays list of Access Points enabled with WifiRTT (to check distance). Requests location
+ * permissions if they are not approved via secondary splash screen explaining why they are needed.
+ */
+public class MainActivity extends AppCompatActivity implements ScanResultClickListener {
+
+ private static final String TAG = "MainActivity";
+
+ private boolean mLocationPermissionApproved = false;
+
+ List<ScanResult> mAccessPointsSupporting80211mc;
+
+ private WifiManager mWifiManager;
+ private WifiScanReceiver mWifiScanReceiver;
+
+ private TextView mOutputTextView;
+ private RecyclerView mRecyclerView;
+
+ private MyAdapter mAdapter;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+
+ mOutputTextView = findViewById(R.id.access_point_summary_text_view);
+ mRecyclerView = findViewById(R.id.recycler_view);
+
+ // Improve performance if you know that changes in content do not change the layout size
+ // of the RecyclerView
+ mRecyclerView.setHasFixedSize(true);
+
+ // use a linear layout manager
+ LayoutManager layoutManager = new LinearLayoutManager(this);
+ mRecyclerView.setLayoutManager(layoutManager);
+
+ mAccessPointsSupporting80211mc = new ArrayList<>();
+
+ mAdapter = new MyAdapter(mAccessPointsSupporting80211mc, this);
+ mRecyclerView.setAdapter(mAdapter);
+
+ mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
+ mWifiScanReceiver = new WifiScanReceiver();
+ }
+
+ @Override
+ protected void onResume() {
+ Log.d(TAG, "onResume()");
+ super.onResume();
+
+ mLocationPermissionApproved =
+ ActivityCompat.checkSelfPermission(this, permission.ACCESS_FINE_LOCATION)
+ == PackageManager.PERMISSION_GRANTED;
+
+ registerReceiver(
+ mWifiScanReceiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
+ }
+
+ @Override
+ protected void onPause() {
+ Log.d(TAG, "onPause()");
+ super.onPause();
+ unregisterReceiver(mWifiScanReceiver);
+ }
+
+ private void logToUi(final String message) {
+ if (!message.isEmpty()) {
+ Log.d(TAG, message);
+ mOutputTextView.setText(message);
+ }
+ }
+
+ @Override
+ public void onScanResultItemClick(ScanResult scanResult) {
+ Log.d(TAG, "onScanResultItemClick(): ssid: " + scanResult.SSID);
+
+ Intent intent = new Intent(this, AccessPointRangingResultsActivity.class);
+ intent.putExtra(SCAN_RESULT_EXTRA, scanResult);
+ startActivity(intent);
+ }
+
+ public void onClickFindDistancesToAccessPoints(View view) {
+ if (mLocationPermissionApproved) {
+ logToUi(getString(R.string.retrieving_access_points));
+ mWifiManager.startScan();
+
+ } else {
+ // On 23+ (M+) devices, fine location permission not granted. Request permission.
+ Intent startIntent = new Intent(this, LocationPermissionRequestActivity.class);
+ startActivity(startIntent);
+ }
+ }
+
+ private class WifiScanReceiver extends BroadcastReceiver {
+
+ private List<ScanResult> find80211mcSupportedAccessPoints(
+ @NonNull List<ScanResult> originalList) {
+ List<ScanResult> newList = new ArrayList<>();
+
+ for (ScanResult scanResult : originalList) {
+
+ if (scanResult.is80211mcResponder()) {
+ newList.add(scanResult);
+ }
+
+ if (newList.size() >= RangingRequest.getMaxPeers()) {
+ break;
+ }
+ }
+ return newList;
+ }
+
+ // This is checked via mLocationPermissionApproved boolean
+ @SuppressLint("MissingPermission")
+ public void onReceive(Context context, Intent intent) {
+
+ List<ScanResult> scanResults = mWifiManager.getScanResults();
+
+ if (scanResults != null) {
+
+ if (mLocationPermissionApproved) {
+ mAccessPointsSupporting80211mc = find80211mcSupportedAccessPoints(scanResults);
+
+ mAdapter.swapData(mAccessPointsSupporting80211mc);
+
+ logToUi(
+ scanResults.size()
+ + " APs discovered, "
+ + mAccessPointsSupporting80211mc.size()
+ + " RTT capable.");
+
+ } else {
+ // TODO (jewalker): Add Snackbar regarding permissions
+ Log.d(TAG, "Permissions not allowed.");
+ }
+ }
+ }
+ }
+}
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/MyAdapter.java b/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/MyAdapter.java
new file mode 100644
index 0000000..2b84681
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/java/com/example/android/wifirttscan/MyAdapter.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2018 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.wifirttscan;
+
+import android.net.wifi.ScanResult;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.RecyclerView.ViewHolder;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import java.util.List;
+
+/**
+ * Displays the ssid and bssid from a list of {@link ScanResult}s including a header at the top of
+ * the {@link RecyclerView} to label the data.
+ */
+public class MyAdapter extends RecyclerView.Adapter<ViewHolder> {
+ private static final int HEADER_POSITION = 0;
+
+ private static final int TYPE_HEADER = 0;
+ private static final int TYPE_ITEM = 1;
+
+ private static ScanResultClickListener sScanResultClickListener;
+
+ private List<ScanResult> mWifiAccessPointsWithRtt;
+
+ public MyAdapter(List<ScanResult> list, ScanResultClickListener scanResultClickListener) {
+ mWifiAccessPointsWithRtt = list;
+ sScanResultClickListener = scanResultClickListener;
+ }
+
+ public static class ViewHolderHeader extends RecyclerView.ViewHolder {
+ public ViewHolderHeader(View view) {
+ super(view);
+ }
+ }
+
+ public class ViewHolderItem extends RecyclerView.ViewHolder implements View.OnClickListener {
+ public TextView mSsidTextView;
+ public TextView mBssidTextView;
+
+ public ViewHolderItem(View view) {
+ super(view);
+ view.setOnClickListener(this);
+ mSsidTextView = view.findViewById(R.id.ssid_text_view);
+ mBssidTextView = view.findViewById(R.id.bssid_text_view);
+ }
+
+ @Override
+ public void onClick(View view) {
+ sScanResultClickListener.onScanResultItemClick(getItem(getAdapterPosition()));
+ }
+ }
+
+ public void swapData(List<ScanResult> list) {
+
+ // Always clear with any update, as even an empty list means no WifiRtt devices were found.
+ mWifiAccessPointsWithRtt.clear();
+
+ if ((list != null) && (list.size() > 0)) {
+ mWifiAccessPointsWithRtt.addAll(list);
+ }
+
+ notifyDataSetChanged();
+ }
+
+ @Override
+ public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+
+ ViewHolder viewHolder;
+
+ if (viewType == TYPE_HEADER) {
+ viewHolder =
+ new ViewHolderHeader(
+ LayoutInflater.from(parent.getContext())
+ .inflate(R.layout.recycler_row_header, parent, false));
+
+ } else if (viewType == TYPE_ITEM) {
+ viewHolder =
+ new ViewHolderItem(
+ LayoutInflater.from(parent.getContext())
+ .inflate(R.layout.recycler_row_item, parent, false));
+ } else {
+ throw new RuntimeException(viewType + " isn't a valid view type.");
+ }
+
+ return viewHolder;
+ }
+
+ @Override
+ public void onBindViewHolder(ViewHolder viewHolder, int position) {
+
+ if (viewHolder instanceof ViewHolderHeader) {
+ // No updates need to be made to header view (defaults remain same).
+
+ } else if (viewHolder instanceof ViewHolderItem) {
+ ViewHolderItem viewHolderItem = (ViewHolderItem) viewHolder;
+ ScanResult currentScanResult = getItem(position);
+
+ viewHolderItem.mSsidTextView.setText(currentScanResult.SSID);
+ viewHolderItem.mBssidTextView.setText(currentScanResult.BSSID);
+
+ } else {
+ throw new RuntimeException(viewHolder + " isn't a valid view holder.");
+ }
+ }
+
+ /*
+ * Because we added a header item to the list, we need to decrement the position by one to get
+ * the proper place in the list.
+ */
+ private ScanResult getItem(int position) {
+ return mWifiAccessPointsWithRtt.get(position - 1);
+ }
+
+ // Returns size of list plus the header item (adds extra item).
+ @Override
+ public int getItemCount() {
+ return mWifiAccessPointsWithRtt.size() + 1;
+ }
+
+ @Override
+ public int getItemViewType(int position) {
+ if (position == HEADER_POSITION) {
+ return TYPE_HEADER;
+ } else {
+ return TYPE_ITEM;
+ }
+ }
+
+ // Used to inform the class containing the RecyclerView that one of the ScanResult items in the
+ // list was clicked.
+ public interface ScanResultClickListener {
+ void onScanResultItemClick(ScanResult scanResult);
+ }
+}
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-hdpi/ic_wifi.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-hdpi/ic_wifi.png
new file mode 100644
index 0000000..b768a95
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-hdpi/ic_wifi.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 0000000..1358628
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-hdpi/tile.9.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-mdpi/ic_wifi.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-mdpi/ic_wifi.png
new file mode 100644
index 0000000..e13fb0f
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-mdpi/ic_wifi.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-v24/ic_launcher_foreground.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..ae56de1
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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"
+ xmlns:aapt="http://schemas.android.com/aapt"
+ android:width="108dp"
+ android:height="108dp"
+ android:viewportWidth="108"
+ android:viewportHeight="108">
+ <path
+ android:fillType="evenOdd"
+ android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+ android:strokeColor="#00000000"
+ android:strokeWidth="1">
+ <aapt:attr name="android:fillColor">
+ <gradient
+ android:endX="78.5885"
+ android:endY="90.9159"
+ android:startX="48.7653"
+ android:startY="61.0927"
+ android:type="linear">
+ <item
+ android:color="#44000000"
+ android:offset="0.0" />
+ <item
+ android:color="#00000000"
+ android:offset="1.0" />
+ </gradient>
+ </aapt:attr>
+ </path>
+ <path
+ android:fillColor="#FFFFFF"
+ android:fillType="nonZero"
+ android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+ android:strokeColor="#00000000"
+ android:strokeWidth="1" />
+</vector>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-xhdpi/ic_wifi.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-xhdpi/ic_wifi.png
new file mode 100644
index 0000000..ecb6564
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-xhdpi/ic_wifi.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-xxhdpi/ic_wifi.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-xxhdpi/ic_wifi.png
new file mode 100644
index 0000000..91ecfbe
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable-xxhdpi/ic_wifi.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_launcher_background.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..0d5ac30
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,183 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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="108dp"
+ android:height="108dp"
+ android:viewportWidth="108"
+ android:viewportHeight="108">
+ <path
+ android:fillColor="#26A69A"
+ android:pathData="M0,0h108v108h-108z" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M9,0L9,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,0L19,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M29,0L29,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M39,0L39,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M49,0L49,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M59,0L59,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M69,0L69,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M79,0L79,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M89,0L89,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M99,0L99,108"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,9L108,9"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,19L108,19"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,29L108,29"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,39L108,39"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,49L108,49"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,59L108,59"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,69L108,69"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,79L108,79"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,89L108,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,99L108,99"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,29L89,29"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,39L89,39"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,49L89,49"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,59L89,59"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,69L89,69"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,79L89,79"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M29,19L29,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M39,19L39,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M49,19L49,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M59,19L59,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M69,19L69,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M79,19L79,89"
+ android:strokeColor="#33FFFFFF"
+ android:strokeWidth="0.8" />
+</vector>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_round_network_wifi_24px.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_round_network_wifi_24px.xml
new file mode 100644
index 0000000..d983049
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_round_network_wifi_24px.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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="24dp"
+ android:height="24dp"
+ android:viewportWidth="24"
+ android:viewportHeight="24">
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M23.64,7C23.19,6.66 18.71,3 12,3C5.28,3 0.81,6.66 0.36,7l10.08,12.56c0.8,1 2.32,1 3.12,0L23.64,7z"
+ android:fillAlpha="0.3"/>
+ <path
+ android:fillColor="#FF000000"
+ android:pathData="M3.53,10.94l6.91,8.61c0.8,1 2.32,1 3.12,0l6.91,-8.61c-0.43,-0.33 -3.66,-2.95 -8.47,-2.95S3.96,10.61 3.53,10.94z"/>
+</vector>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_round_network_wifi_white_24px.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_round_network_wifi_white_24px.xml
new file mode 100644
index 0000000..e392b05
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/drawable/ic_round_network_wifi_white_24px.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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="24dp"
+ android:height="24dp"
+ android:viewportWidth="24"
+ android:viewportHeight="24">
+ <path
+ android:pathData="M23.64,7C23.19,6.66 18.71,3 12,3C5.28,3 0.81,6.66 0.36,7l10.08,12.56c0.8,1 2.32,1 3.12,0L23.64,7z"
+ android:fillColor="#ffffff"
+ android:fillAlpha="0.3"/>
+ <path
+ android:pathData="M3.53,10.94l6.91,8.61c0.8,1 2.32,1 3.12,0l6.91,-8.61c-0.43,-0.33 -3.66,-2.95 -8.47,-2.95S3.96,10.61 3.53,10.94z"
+ android:fillColor="#ffffff"/>
+</vector>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_access_point_ranging_results.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_access_point_ranging_results.xml
new file mode 100644
index 0000000..ccd3bd8
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_access_point_ranging_results.xml
@@ -0,0 +1,351 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ -->
+<androidx.constraintlayout.widget.ConstraintLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".AccessPointRangingResultsActivity">
+
+ <TextView
+ android:id="@+id/ssid"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top_title"
+ android:gravity="center_vertical"
+ tools:text="SSID"
+ android:textAlignment="center"
+ android:textSize="@dimen/activity_access_point_ranging_request_header_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+ <TextView
+ android:id="@+id/bssid"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top_title"
+ android:gravity="center_vertical"
+ android:textAlignment="center"
+ android:textSize="@dimen/activity_access_point_ranging_request_header_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ tools:text="BSSID" />
+
+ <View
+ android:id="@+id/divider1"
+ android:layout_width="0dp"
+ android:layout_height="@dimen/activity_access_point_ranging_request_divider_height"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top_divider"
+ android:background="?android:attr/listDivider"
+ android:visibility="visible"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/bssid" />
+
+ <TextView
+ android:id="@+id/range_label"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top_divider"
+ android:gravity="start"
+ android:text="@string/range_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="@+id/divider1" />
+
+ <TextView
+ android:id="@+id/range_value"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top_divider"
+ android:gravity="end"
+ android:text="@string/activity_access_point_ranging_results_requesting_default"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/divider1" />
+
+ <TextView
+ android:id="@+id/range_mean_label"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="start"
+ android:text="@string/range_mean_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/range_label" />
+
+ <TextView
+ android:id="@+id/range_mean_value"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="end"
+ android:text="@string/activity_access_point_ranging_results_requesting_default"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/range_value" />
+
+ <TextView
+ android:id="@+id/range_sd_label"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="start"
+ android:text="@string/range_sd_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/range_mean_label" />
+
+ <TextView
+ android:id="@+id/range_sd_value"
+ android:layout_width="176dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="end"
+ android:text="@string/activity_access_point_ranging_results_requesting_default"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/range_mean_value" />
+
+ <TextView
+ android:id="@+id/range_sd_mean_label"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="start"
+ android:text="@string/range_sd_mean_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/range_sd_label" />
+
+ <TextView
+ android:id="@+id/range_sd_mean_value"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="end"
+ android:text="@string/activity_access_point_ranging_results_requesting_default"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/range_sd_value" />
+
+ <TextView
+ android:id="@+id/rssi_label"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="start"
+ android:text="@string/rssi_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/range_sd_mean_label" />
+
+ <TextView
+ android:id="@+id/rssi_value"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="end"
+ android:text="@string/activity_access_point_ranging_results_requesting_default"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/range_sd_mean_value" />
+
+ <TextView
+ android:id="@+id/successes_in_burst_label"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="start"
+ android:text="@string/successes_in_burst_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/rssi_label" />
+
+ <TextView
+ android:id="@+id/successes_in_burst_value"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="end"
+ android:text="@string/activity_access_point_ranging_results_requesting_default"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/rssi_value" />
+
+ <TextView
+ android:id="@+id/success_ratio_label"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="start"
+ android:text="@string/success_ratio_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/successes_in_burst_label" />
+
+ <TextView
+ android:id="@+id/success_ratio_value"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="end"
+ android:text="@string/activity_access_point_ranging_results_requesting_default"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/successes_in_burst_value" />
+
+ <TextView
+ android:id="@+id/number_of_requests_label"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="start"
+ android:text="@string/number_of_requests_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/success_ratio_label" />
+
+ <TextView
+ android:id="@+id/number_of_requests_value"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="end"
+ android:text="@string/activity_access_point_ranging_results_requesting_default"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/success_ratio_value" />
+
+ <View
+ android:id="@+id/divider2"
+ android:layout_width="0dp"
+ android:layout_height="@dimen/activity_access_point_ranging_request_divider_height"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top_divider"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:background="?android:attr/listDivider"
+ android:visibility="visible"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/number_of_requests_value" />
+
+ <TextView
+ android:id="@+id/stats_window_size_label"
+ android:layout_width="0dp"
+ android:layout_height="@dimen/activity_access_point_ranging_request_edit_view_height"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top_divider"
+ android:gravity="start"
+ android:text="@string/stats_window_size_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="@+id/divider2" />
+
+ <EditText
+ android:id="@+id/stats_window_size_edit_value"
+ android:layout_width="@dimen/activity_access_point_ranging_request_edit_view_width"
+ android:layout_height="@dimen/activity_access_point_ranging_request_edit_view_height"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top_divider"
+ android:ems="10"
+ android:singleLine="true"
+ android:inputType="number"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toTopOf="@+id/divider2"
+ tools:text="50" />
+
+ <TextView
+ android:id="@+id/ranging_period_label"
+ android:layout_width="0dp"
+ android:layout_height="@dimen/activity_access_point_ranging_request_edit_view_height"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:gravity="start"
+ android:text="@string/ranging_period_label_activity_access_point_ranging_results"
+ android:textAlignment="textStart"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/stats_window_size_label" />
+
+ <EditText
+ android:id="@+id/ranging_period_edit_value"
+ android:layout_width="@dimen/activity_access_point_ranging_request_edit_view_width"
+ android:layout_height="@dimen/activity_access_point_ranging_request_edit_view_height"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginTop="@dimen/activity_access_point_ranging_request_margin_top"
+ android:ems="10"
+ android:singleLine="true"
+ android:inputType="number"
+ android:textAlignment="textEnd"
+ android:textSize="@dimen/activity_access_point_ranging_request_item_text_size"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/stats_window_size_edit_value"
+ tools:text="1000" />
+
+ <Button
+ android:id="@+id/reset_button"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginBottom="8dp"
+ android:layout_marginEnd="@dimen/activity_access_point_ranging_request_margin_end"
+ android:layout_marginStart="@dimen/activity_access_point_ranging_request_margin_start"
+ android:onClick="onResetButtonClick"
+ android:text="@string/reset_label_activity_access_point_ranging_results"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_location_permission_request.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_location_permission_request.xml
new file mode 100644
index 0000000..aa256c0
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_location_permission_request.xml
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ -->
+<androidx.constraintlayout.widget.ConstraintLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:id="@+id/relativeLayout"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:background="@color/colorSecondary"
+ tools:layout_editor_absoluteY="81dp">
+
+ <ImageView
+ android:id="@+id/imageView"
+ android:layout_width="0dp"
+ android:layout_height="140dp"
+ android:layout_marginLeft="16dp"
+ android:layout_marginRight="16dp"
+ android:layout_marginTop="48dp"
+ android:src="@drawable/ic_round_network_wifi_white_24px"
+ app:layout_constraintHorizontal_bias="0.0"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+ <TextView
+ android:id="@+id/mainMessageTextView"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginBottom="8dp"
+ android:layout_marginEnd="16dp"
+ android:layout_marginStart="16dp"
+ android:layout_marginTop="16dp"
+ android:text="@string/main_message_activity_location_permission_request"
+ android:textAppearance="?android:attr/textAppearanceLarge"
+ android:textColor="#ffffff"
+ android:textStyle="bold"
+ app:layout_constraintBottom_toTopOf="@+id/detailsTextView"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.0"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/imageView"
+ app:layout_constraintVertical_chainStyle="spread_inside" />
+
+ <TextView
+ android:id="@+id/detailsTextView"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_marginBottom="8dp"
+ android:layout_marginEnd="16dp"
+ android:layout_marginStart="16dp"
+ android:layout_marginTop="8dp"
+ android:text="@string/details_message_activity_location_permission_request"
+ android:textAppearance="?android:attr/textAppearanceMedium"
+ android:textColor="#ffffff"
+ app:layout_constraintBottom_toTopOf="@+id/deny_permission_request"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toBottomOf="@+id/mainMessageTextView" />
+
+ <Button
+ android:id="@+id/deny_permission_request"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginBottom="8dp"
+ android:layout_marginStart="16dp"
+ android:background="@android:color/transparent"
+ android:onClick="onClickDenyPermissionRequest"
+ android:stateListAnimator="@null"
+ android:text="@string/no_thanks_activity_location_permission_request"
+ android:textColor="#ffffff"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintStart_toStartOf="parent" />
+
+ <Button
+ android:id="@+id/approve_permission_request"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginBottom="8dp"
+ android:layout_marginEnd="16dp"
+ android:background="@android:color/transparent"
+ android:onClick="onClickApprovePermissionRequest"
+ android:stateListAnimator="@null"
+ android:text="@string/continue_activity_location_permission_request"
+ android:textColor="#ffffff"
+ android:textStyle="bold"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..0dd4bc1
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ -->
+<androidx.constraintlayout.widget.ConstraintLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ xmlns:tools="http://schemas.android.com/tools"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:id="@+id/coordinatorLayout"
+ tools:context=".MainActivity">
+
+ <androidx.recyclerview.widget.RecyclerView
+ android:id="@+id/recycler_view"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:layout_marginBottom="8dp"
+ android:layout_marginEnd="16dp"
+ android:layout_marginStart="16dp"
+ android:layout_marginTop="8dp"
+ android:scrollbars="vertical"
+ app:layout_constraintBottom_toTopOf="@+id/access_point_summary_text_view"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.69"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_bias="1.0" />
+
+ <TextView
+ android:id="@+id/access_point_summary_text_view"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginBottom="8dp"
+ android:layout_marginEnd="16dp"
+ android:layout_marginStart="16dp"
+ android:layout_marginTop="8dp"
+ android:text="@string/introduction_text"
+ android:textAlignment="center"
+ android:visibility="visible"
+ app:layout_constraintBottom_toTopOf="@+id/scan_wifi_button"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintHorizontal_bias="0.0"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_bias="0.991" />
+
+ <Button
+ android:id="@+id/scan_wifi_button"
+ android:layout_width="0dp"
+ android:layout_height="wrap_content"
+ android:layout_marginBottom="8dp"
+ android:layout_marginEnd="16dp"
+ android:layout_marginStart="16dp"
+ android:onClick="onClickFindDistancesToAccessPoints"
+ android:text="@string/scan_wifi_button_label"
+ android:visibility="visible"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/recycler_row_header.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/recycler_row_header.xml
new file mode 100644
index 0000000..462cdee
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/recycler_row_header.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ Copyright 2018 Google 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.
+ -->
+<LinearLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:layout_gravity="center"
+ android:paddingTop="@dimen/recycler_row_padding"
+ android:paddingBottom="@dimen/recycler_row_padding"
+ android:orientation="horizontal">
+
+ <TextView
+ android:layout_width="0dp"
+ android:layout_height="match_parent"
+ android:layout_weight="1"
+ android:gravity="center_vertical"
+ android:textAlignment="center"
+ android:textSize="@dimen/recycler_row_header_text_size"
+ android:text="@string/recycler_row_header_label_ssid"
+ android:id="@+id/ssid_text_view"/>
+
+ <TextView
+ android:layout_width="0dp"
+ android:layout_height="match_parent"
+ android:layout_weight="1"
+ android:gravity="center_vertical"
+ android:textAlignment="center"
+ android:text="@string/recycler_row_header_label_bssid"
+ android:textSize="@dimen/recycler_row_header_text_size"
+ android:id="@+id/bssid_text_view"/>
+</LinearLayout>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/recycler_row_item.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/recycler_row_item.xml
new file mode 100644
index 0000000..499e9c0
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/layout/recycler_row_item.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ Copyright 2018 Google 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.
+ -->
+<LinearLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ android:layout_width="match_parent"
+ android:layout_height="wrap_content"
+ android:layout_gravity="center"
+ android:paddingTop="@dimen/recycler_row_padding"
+ android:paddingBottom="@dimen/recycler_row_padding"
+ android:orientation="horizontal"
+ android:clickable="true">
+
+ <TextView
+ android:layout_width="0dp"
+ android:layout_height="match_parent"
+ android:layout_weight="1"
+ android:gravity="center_vertical"
+ android:textAlignment="center"
+ android:textSize="@dimen/recycler_row_item_text_size"
+ android:id="@+id/ssid_text_view"/>
+
+ <TextView
+ android:layout_width="0dp"
+ android:layout_height="match_parent"
+ android:layout_weight="1"
+ android:gravity="center_vertical"
+ android:textAlignment="center"
+ android:textSize="@dimen/recycler_row_item_text_size"
+ android:id="@+id/bssid_text_view"/>
+</LinearLayout>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..6568fb6
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ -->
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@drawable/ic_launcher_background" />
+ <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..6568fb6
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ -->
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@drawable/ic_launcher_background" />
+ <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..a2f5908
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-hdpi/ic_launcher_round.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 0000000..1b52399
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-hdpi/ic_launcher_round.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..ff10afd
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-mdpi/ic_launcher_round.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 0000000..115a4c7
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-mdpi/ic_launcher_round.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..dcd3cd8
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..459ca60
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xhdpi/ic_launcher_round.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..8ca12fe
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..8e19b41
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..b824ebd
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..4c19a13
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 0000000..22074a2
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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/WifiRttScan/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 0000000..03d1974
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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/WifiRttScan/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 0000000..8c1ea66
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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/WifiRttScan/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 0000000..8b6ec3f
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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/WifiRttScan/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 0000000..c778e4f
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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/WifiRttScan/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 0000000..f837483
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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">WifiRttScan</string>
+ <string name="intro_message">
+ <![CDATA[
+
+
+Sample demonstrates best practices for using WifiRTT APIs in Android. Also, this is a a useful
+application for testing Wifi-RTT enabled phones and access points and validating the estimated
+distance is close to the actual distance between them.
+
+
+ ]]>
+ </string>
+</resources>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/colors.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/colors.xml
new file mode 100644
index 0000000..48f51a2
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/colors.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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="colorPrimary">#3F51B5</color>
+ <color name="colorPrimaryDark">#303F9F</color>
+ <color name="colorSecondary">#9fa8da</color>
+ <color name="colorAccent">#FF4081</color>
+</resources>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/dimens.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..990b85d
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/dimens.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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>
+ <dimen name="recycler_row_padding">5dp</dimen>
+ <dimen name="recycler_row_header_text_size">30sp</dimen>
+ <dimen name="recycler_row_item_text_size">20sp</dimen>
+
+ <dimen name="activity_access_point_ranging_request_header_text_size">24sp</dimen>
+ <dimen name="activity_access_point_ranging_request_item_text_size">20sp</dimen>
+ <dimen name="activity_access_point_ranging_request_margin_end">16dp</dimen>
+ <dimen name="activity_access_point_ranging_request_margin_start">16dp</dimen>
+ <dimen name="activity_access_point_ranging_request_margin_top">8dp</dimen>
+ <dimen name="activity_access_point_ranging_request_margin_top_title">16dp</dimen>
+ <dimen name="activity_access_point_ranging_request_margin_top_divider">16dp</dimen>
+ <dimen name="activity_access_point_ranging_request_divider_height">1dp</dimen>
+ <dimen name="activity_access_point_ranging_request_edit_view_height">44dp</dimen>
+ <dimen name="activity_access_point_ranging_request_edit_view_width">116dp</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/strings.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/strings.xml
new file mode 100644
index 0000000..f7d637f
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/strings.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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="title_activity_location_permission_request">Location Permission Required</string>
+ <string name="main_message_activity_location_permission_request">See distances to access points with Wifi RTT (permission required).</string>
+ <string name="details_message_activity_location_permission_request">This app needs access to your phone\'s location to show the distances between this device and Wifi RTT enabled access points.</string>
+ <string name="no_thanks_activity_location_permission_request">No Thanks</string>
+ <string name="continue_activity_location_permission_request">Continue</string>
+
+ <string name="recycler_row_header_label_ssid">SSID</string>
+ <string name="recycler_row_header_label_bssid">BSSID</string>
+ <string name="retrieving_access_points">Retrieving Access Points…</string>
+ <string name="scan_wifi_button_label">Scan WiFi</string>
+ <string name="introduction_text">Click the button below to scan access points.</string>
+
+ <!-- Strings for AccessPointRangingResultsActivity. -->
+ <string name="title_activity_access_point_ranging_results">Access Point Ranging Results</string>
+ <string name="activity_access_point_ranging_results_requesting_default">Requesting…</string>
+ <string name="range_label_activity_access_point_ranging_results">Range (m):</string>
+ <string name="range_mean_label_activity_access_point_ranging_results">Range-mean (m):</string>
+ <string name="range_sd_label_activity_access_point_ranging_results">RangeSD (m):</string>
+ <string name="range_sd_mean_activity_access_point_ranging_results">RangeSD-mean (m):</string>
+ <string name="rssi_label_activity_access_point_ranging_results">RSSI (dBm):</string>
+ <string name="successes_in_burst_label_activity_access_point_ranging_results">Successes in burst:</string>
+ <string name="success_ratio_label_activity_access_point_ranging_results">Success Ratio:</string>
+
+ <string name="stats_window_size_label_activity_access_point_ranging_results">Stats window size:</string>
+ <string name="ranging_period_label_activity_access_point_ranging_results">Ranging period (ms):</string>
+
+ <string name="reset_label_activity_access_point_ranging_results">Reset Ranging Requests</string>
+ <string name="number_of_requests_label_activity_access_point_ranging_results">Number of requests:</string>
+ <string name="mac_mismatch_message_activity_access_point_ranging_results">Callback MAC address doesn\'t match original request MAC address.</string>
+
+</resources>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/styles.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/styles.xml
new file mode 100644
index 0000000..2d82d15
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/styles.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2018 Google Inc. All rights reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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>
+
+ <!-- Base application theme. -->
+ <style name="CustomAppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+ <!-- Customize your theme here. -->
+ <item name="colorPrimary">@color/colorPrimary</item>
+ <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+ <item name="colorSecondary">@color/colorSecondary</item>
+ <item name="colorAccent">@color/colorAccent</item>
+ </style>
+
+ <style name="CustomAppTheme.NoActionBar">
+ <item name="windowActionBar">false</item>
+ <item name="windowNoTitle">true</item>
+ </style>
+
+ <style name="CustomAppTheme.AppBarOverlay"
+ parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+
+ <style name="CustomAppTheme.PopupOverlay"
+ parent="ThemeOverlay.AppCompat.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 0000000..39e710b
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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/WifiRttScan/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/WifiRttScan/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 0000000..6e7d593
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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/WifiRttScan/CONTRIBUTING.md b/prebuilts/gradle/WifiRttScan/CONTRIBUTING.md
new file mode 100644
index 0000000..faa8b5c
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/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/WifiRttScan/LICENSE b/prebuilts/gradle/WifiRttScan/LICENSE
new file mode 100644
index 0000000..d5cf8f3
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/LICENSE
@@ -0,0 +1,203 @@
+Apache License
+--------------
+
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
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+ "Contribution" shall mean any work of authorship, including
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
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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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+ (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
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+ (d) If the Work includes a "NOTICE" text file as part of its
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+ You may add Your own copyright statement to Your modifications and
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+ the conditions stated in this License.
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+ 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
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+
+ 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
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+ 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
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+ has been advised of the possibility of such damages.
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+ 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,
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+ 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 "{}"
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+ Copyright {yyyy} {name of copyright owner}
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT 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/WifiRttScan/README.md b/prebuilts/gradle/WifiRttScan/README.md
new file mode 100644
index 0000000..64a3c33
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/README.md
@@ -0,0 +1,58 @@
+
+Android WifiRttScan Sample
+===================================
+
+Sample demonstrates best practices for using WifiRTT APIs in Android. Also, this is a a useful
+application for testing Wifi-RTT enabled phones and access points and validating the estimated
+distance is close to the actual distance between them.
+
+Introduction
+------------
+
+Steps for trying out the sample:
+* Compile and install the mobile app onto your mobile device (for mobile scenario).
+
+This sample demonstrates best practices for using the WifiRtt APIs in Android. The main activity
+lists all access points that are WifiRtt enabled using the [WifiManager][1]. By clicking on one of
+the access points, another activity will launch and initiate [RangingRequest][2] via the
+[WifiRttManager][3]. The activity will display many of the details returned from the access point
+including the distance between the access point and the phone.
+
+[1]: https://developer.android.com/reference/android/net/wifi/WifiManager
+[2]: https://developer.android.com/reference/android/net/wifi/rtt/RangingRequest
+[3]: https://developer.android.com/reference/android/net/wifi/rtt/WifiRttManager
+
+Pre-requisites
+--------------
+
+- Android SDK 28
+- Android Build Tools v27.0.3
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/main1.png" height="400" alt="Screenshot"/> <img src="screenshots/main2.png" height="400" alt="Screenshot"/> <img src="screenshots/main3.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-WifiRttScan
+
+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
+-------
+Licensed under an Apache 2.0 license. See LICENSE file for details.
+
diff --git a/prebuilts/gradle/WifiRttScan/build.gradle b/prebuilts/gradle/WifiRttScan/build.gradle
new file mode 100644
index 0000000..08744c6
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/build.gradle
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2018 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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/WifiRttScan/gradle.properties b/prebuilts/gradle/WifiRttScan/gradle.properties
new file mode 100644
index 0000000..94f8472
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/gradle.properties
@@ -0,0 +1,22 @@
+
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Settings specified in this file will override any Gradle settings
+# configured through the IDE.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+# Default value: -Xmx10248m -XX:MaxPermSize=256m
+# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+
+android.useAndroidX=true
+android.enableJetifier=true
diff --git a/prebuilts/gradle/WifiRttScan/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/WifiRttScan/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8c0fb64
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/WifiRttScan/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..562d1fa
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Fri Jul 27 17:47:47 PDT 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-rc-1-all.zip
diff --git a/prebuilts/gradle/WifiRttScan/gradlew b/prebuilts/gradle/WifiRttScan/gradlew
new file mode 100644
index 0000000..b3fa6f2
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/gradlew
@@ -0,0 +1,178 @@
+#!/usr/bin/env bash
+
+# Copyright 2018 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+##############################################################################
+##
+## 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 "$@"
diff --git a/prebuilts/gradle/WifiRttScan/gradlew.bat b/prebuilts/gradle/WifiRttScan/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+: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/WifiRttScan/screenshots/main1.png b/prebuilts/gradle/WifiRttScan/screenshots/main1.png
new file mode 100644
index 0000000..a4b594e
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/screenshots/main1.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/screenshots/main2.png b/prebuilts/gradle/WifiRttScan/screenshots/main2.png
new file mode 100644
index 0000000..c838021
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/screenshots/main2.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/screenshots/main3.png b/prebuilts/gradle/WifiRttScan/screenshots/main3.png
new file mode 100644
index 0000000..f364782
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/screenshots/main3.png
Binary files differ
diff --git a/prebuilts/gradle/WifiRttScan/settings.gradle b/prebuilts/gradle/WifiRttScan/settings.gradle
new file mode 100644
index 0000000..7c9c961
--- /dev/null
+++ b/prebuilts/gradle/WifiRttScan/settings.gradle
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2018 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+include 'Application'
