Auto-update

Application/build.gradle

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.3'
+        classpath 'com.android.tools.build:gradle:2.2.0'
     }
 }
 

Application/src/main/java/com/example/android/bluetoothadvertisements/AdvertiserService.java

@@ -1,5 +1,7 @@
 package com.example.android.bluetoothadvertisements;
 
+import android.app.Notification;
+import android.app.PendingIntent;
 import android.app.Service;
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothManager;
@@ -25,6 +27,8 @@ public class AdvertiserService extends Service {
 
     private static final String TAG = AdvertiserService.class.getSimpleName();
 
+    private static final int FOREGROUND_NOTIFICATION_ID = 1;
+
     /**
      * A global variable to let AdvertiserFragment check if the Service is running without needing
      * to start or bind to it.
@@ -34,7 +38,7 @@ public class AdvertiserService extends Service {
     public static boolean running = false;
 
     public static final String ADVERTISING_FAILED =
-            "com.example.android.bluetoothadvertisements.advertising_failed";
+        "com.example.android.bluetoothadvertisements.advertising_failed";
 
     public static final String ADVERTISING_FAILED_EXTRA_CODE = "failureCode";
 
@@ -72,6 +76,7 @@ public void onDestroy() {
         running = false;
         stopAdvertising();
         mHandler.removeCallbacks(timeoutRunnable);
+        stopForeground(true);
         super.onDestroy();
     }
 
@@ -125,6 +130,8 @@ public void run() {
      * Starts BLE Advertising.
      */
     private void startAdvertising() {
+        goForeground();
+
         Log.d(TAG, "Service: Starting Advertising");
 
         if (mAdvertiseCallback == null) {
@@ -134,11 +141,29 @@ private void startAdvertising() {
 
             if (mBluetoothLeAdvertiser != null) {
                 mBluetoothLeAdvertiser.startAdvertising(settings, data,
-                        mAdvertiseCallback);
+                    mAdvertiseCallback);
             }
         }
     }
 
+    /**
+     * Move service to the foreground, to avoid execution limits on background processes.
+     *
+     * Callers should call stopForeground(true) when background work is complete.
+     */
+    private void goForeground() {
+        Intent notificationIntent = new Intent(this, MainActivity.class);
+        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
+            notificationIntent, 0);
+        Notification n = new Notification.Builder(this)
+            .setContentTitle("Advertising device via Bluetooth")
+            .setContentText("This device is discoverable to others nearby.")
+            .setSmallIcon(R.drawable.ic_launcher)
+            .setContentIntent(pendingIntent)
+            .build();
+        startForeground(FOREGROUND_NOTIFICATION_ID, n);
+    }
+
     /**
      * Stops BLE Advertising.
      */
@@ -220,4 +245,4 @@ private void sendFailureIntent(int errorCode){
         sendBroadcast(failureIntent);
     }
 
-}
+}

README.md

@@ -59,7 +59,7 @@ submitting a pull request through GitHub. Please see CONTRIBUTING.md for more de
 License
 -------
 
-Copyright 2016 The Android Open Source Project, Inc.
+Copyright 2017 The Android Open Source Project, Inc.
 
 Licensed to the Apache Software Foundation (ASF) under one or more contributor
 license agreements.  See the NOTICE file distributed with this work for