Run a local notification every day at a specific time, even when the application is closed

Question

I have to show a notification every day at a specific time (for example, 7.00 in the morning) to users from my application, even when my application does not work. (closed)

Since the content of the notification will be user-specific, I cannot use (GCM) push

I went through many tutorials and answers, but I can not display a notification when the application is closed (does not work).

Edit: using the code below, I can create a notification while my application is running, if I close notifications about my applications

Here is my main activity

public class MainActivity extends AppCompatActivity { Button setAlarm; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); setAlarm = (Button) findViewById(R.id.set_alarm); setAlarm.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { NotificationEventReceiver.setupAlarm(getApplicationContext()); } }); } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); setIntent(intent); } } 

here, when I click the "Alarm" button, my NotificationEventReciver calls

 public class NotificationEventReceiver extends WakefulBroadcastReceiver { private static final String ACTION_START_NOTIFICATION_SERVICE = "ACTION_START_NOTIFICATION_SERVICE"; private static final String ACTION_DELETE_NOTIFICATION = "ACTION_DELETE_NOTIFICATION"; public static void setupAlarm(Context context) { AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); Intent intent = new Intent(context, NotificationEventReceiver.class); PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, getTriggerAt(new Date()), 2 * 60 * 1000, alarmIntent); } private static long getTriggerAt(Date now) { Calendar calendar = Calendar.getInstance(); calendar.setTimeInMillis(System.currentTimeMillis()); calendar.set(Calendar.HOUR_OF_DAY, 17); calendar.set(Calendar.MINUTE, 10); System.err.println(now.getTime()+"----->"+ calendar.getTimeInMillis()); return calendar.getTimeInMillis(); } public static void cancelAlarm(Context context) { AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); PendingIntent alarmIntent = getStartPendingIntent(context); alarmManager.cancel(alarmIntent); } private static PendingIntent getStartPendingIntent(Context context) { Intent intent = new Intent(context, NotificationEventReceiver.class); intent.setAction(ACTION_START_NOTIFICATION_SERVICE); return PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); } public static PendingIntent getDeleteIntent(Context context) { Intent intent = new Intent(context, NotificationEventReceiver.class); intent.setAction(ACTION_DELETE_NOTIFICATION); return PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); } @Override public void onReceive(Context context, Intent intent) { Intent serviceIntent = NotificationIntentService.createIntentStartNotificationService(context); if (serviceIntent != null) { System.err.println("onReceive inside not null"); // Start the service, keeping the device awake while it is launching. startWakefulService(context, serviceIntent); } } } 

My class of service, which will start when you log out.

 public class NotificationIntentService extends IntentService { private static final int NOTIFICATION_ID = 1; private static final String ACTION_START = "ACTION_START"; private static final String ACTION_DELETE = "ACTION_DELETE"; public NotificationIntentService() { super(NotificationIntentService.class.getSimpleName()); } public static Intent createIntentStartNotificationService(Context context) { Intent intent = new Intent(context, NotificationIntentService.class); intent.setAction(ACTION_START); return intent; } @Override protected void onHandleIntent(Intent intent) { System.err.println("onHandleIntent, started handling a notification event"); try { String action = intent.getAction(); if (ACTION_START.equals(action)) { System.err.println("enters the loop ACTION_START"); processStartNotification(); } } finally { WakefulBroadcastReceiver.completeWakefulIntent(intent); } } private void processStartNotification() { // Do something. For example, fetch fresh data from backend to create a rich notification? System.err.println("inside the notify method"); Intent mainIntent = new Intent(this, MainActivity.class); PendingIntent pendingIntent = PendingIntent.getActivity(this, NOTIFICATION_ID, mainIntent, PendingIntent.FLAG_UPDATE_CURRENT); final NotificationCompat.Builder builder = new NotificationCompat.Builder(this); builder.setContentTitle("Scheduled Notification") .setAutoCancel(true) .setColor(getResources().getColor(R.color.colorAccent)) .setContentText("This notification has been triggered by Notification Service") .setSmallIcon(R.drawable.ic_launcher); builder.setContentIntent(pendingIntent); final NotificationManager manager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE); manager.notify(NOTIFICATION_ID, builder.build()); } } 

Answer 1

Try this in your setUpAlarm method -

 AlarmManager am = (AlarmManager) cont .getSystemService(cont.ALARM_SERVICE); Intent intent = new Intent(cont, MyReceiver.class); intent.setAction(MyReceiver.ACTION_ALARM_RECEIVER); boolean isWorking = (PendingIntent.getBroadcast(cont, 1001, intent, PendingIntent.FLAG_NO_CREATE) != null); if (isWorking) { // first cancel previous alarm Intent intent = new Intent(cont, MyReceiver.class);// the same as up intent.setAction(MyReceiver.ACTION_ALARM_RECEIVER);// the same as up PendingIntent pI = PendingIntent.getBroadcast(cont, 1001, intent, PendingIntent.FLAG_CANCEL_CURRENT);// the same as up am.cancel(pI);// important pI.cancel();// important } else { Intent intent1 = new Intent(cont, MyReceiver.class); intent1.setAction(MyReceiver.ACTION_ALARM_RECEIVER); PendingIntent pendingIntent = PendingIntent .getBroadcast(cont, 0, intent1, PendingIntent.FLAG_UPDATE_CURRENT); AlarmManager am = (AlarmManager) cont .getSystemService(cont.ALARM_SERVICE); am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent); } 

Hope this helps! :)