Cancel repeating Alarm in Android

Question

I've created a repeating Alarm that goes off every minute. I created a class with 2 static functions to start and cancel the alarm. I did this so I can start and cancel it from multiple places. Starting the alarm works fine, but canceling is doesn't. The context I use when calling startAlarm and cancelAlarm is getApplicationContext(). I think it might be a problem with the context but I'm not sure. Any ideas?

This is my class

public class Alarm {

  public  static PendingIntent pendingIntent;
  public static  AlarmManager manager;
  public static Intent alarmIntent;

    public static void startAlarm(Context context) {

    Log.e("ALARM", "------------STARTED----------------");
    alarmIntent = new Intent((context), AlarmReceiver.class);
    alarmIntent.setAction("NOTIFICATION_ALARM");
    pendingIntent = PendingIntent.getBroadcast(context, 0, alarmIntent, 0);
    manager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
    int alarmType = AlarmManager.RTC_WAKEUP;
    Calendar cal = Calendar.getInstance();


    long intervalTime = 1 * 60 * 1000;
    manager.setRepeating(alarmType, cal.getTimeInMillis(), intervalTime, pendingIntent);

  }

    public static void cancelAlarm(Context context) {

      alarmIntent = new Intent(context, AlarmReceiver.class);
      pendingIntent = PendingIntent.getBroadcast(context, 0, alarmIntent, 0);
      manager = (AlarmManager)     context.getSystemService(Context.ALARM_SERVICE);
      if (manager != null) {
          Log.e("ALARM", "------------STOPPED----------------");
          manager.cancel(pendingIntent);
      }
    }
}

Your Intent on the PendingIntent you're canceling needs to match that which you used to set the alarm. That is, you need to call `alarmIntent.setAction("NOTIFICATION_ALARM");` in the `cancelAlarm()` method. — Mike M., Dec 10 '15 at 12:56
@MikeM. I think this solved it. Didn't know the Intents had to be the same too. Thanks :) — Jason Lie, Dec 10 '15 at 13:08

score 0 · Answer 1 · answered Dec 10 '15 at 13:11

The Intent on the PendingIntent you're canceling needs to match that which you used to set the alarm, as defined by the Intent#filterEquals(Intent) method. That is, you need to call alarmIntent.setAction("NOTIFICATION_ALARM"); in the cancelAlarm() method, as well.

Cancel repeating Alarm in Android

1 Answers1