android pause and restart alarm manager in broadcast receiver

Question

i create AlarmManager in my MainActivity like this

AlarmManager mgr = (AlarmManager) getApplicationContext()
                .getSystemService(Context.ALARM_SERVICE);
Intent notificationIntent = new Intent(getApplicationContext(),
                TransactionService.class);
PendingIntent   pendingIntent=PendingIntent.getService(getApplicationContext(), 0,   notificationIntent, 0);
       mgr.setInexactRepeating(AlarmManager.RTC_WAKEUP,System.currentTimeMillis(), 2000, pendingIntent);

I want for some condition to stop this alarm manager in a broadcast receiver. Below the code of the broadcast receiver(whatever it is).

public class IncomingSms extends BroadcastReceiver {
private Intent notificationIntent;

public void onReceive(Context context, Intent intent) {
}
}
}

So how can i access this alarm manager and pause it into my broadcast receiver, and how can i restart it again ?

Answer 1

public class IncomingSms extends BroadcastReceiver {
    private Intent notificationIntent;

    public void onReceive(Context context, Intent intent) {
         AlarmManager mgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
         Intent notificationIntent = new Intent(context, TransactionService.class);
         PendingIntent pendingIntent=PendingIntent.getService(getApplicationContext(), 0,   notificationIntent, 0);
         mgr.cancel(pendingIntent)
    }
}

You simply have to rebuild your PendingIntent and could pass it to the cancel()-method of the AlarmManager. The identification of your PendingIntent will be done by checking the id of your PendingIntent and if the containing Intent will meet the filterEquals()-requirements defined here: http://developer.android.com/reference/android/content/Intent.html#filterEquals%28android.content.Intent%29

More information: http://developer.android.com/reference/android/app/AlarmManager.html#cancel%28android.app.PendingIntent%29

If you want to restart, you simply have to register to your PendingIntent again.

Answer 2

You cannot pause a AlarmManager once it has started, instead you can cancel the alarm manager and restart it again when you want it.

You can cancel an Alarm event if you know the id that is given at the time of alarm registration.

AlarmManager mgr = (AlarmManager) getApplicationContext()
                .getSystemService(Context.ALARM_SERVICE);
Intent notificationIntent = new Intent(getApplicationContext(),
                TransactionService.class);
PendingIntent   pendingIntent=PendingIntent.getService(getApplicationContext(), 0,   notificationIntent, 0);

alarmManagerstop.cancel(pendingIntent);