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androidalarmmanager

Canceling an alarm in AlarmManager

In my code, I create an alarm as follows:

AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent("mypackage.START_MONITORING_SERVICE");
PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, 0);
long timeForNextStart = System.currentTimeMillis() + elapsedTime;
am.set(AlarmManager.RTC_WAKEUP, timeForNextStart, pi);

To cancel the alarm I do this:

AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent("mypackage.START_MONITORING_SERVICE");
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
am.cancel(pendingIntent);

My question is whether this is the correct way to cancel ALL alarms of the same intent. The docs say:

Remove any alarms with a matching Intent. Any alarm, of any type, whose Intent matches this one (as defined by filterEquals(Intent)), will be canceled.

I'm not exactly sure what defines a "matching intent". If I create multiple alarms with the above code and then peform the cancel as shown, will it cancel ALL of the alarms I created?

Solution

  • You should use PendingIntent flag ==> PendingIntent.FLAG_CANCEL_CURRENT fourth parameters create pendingIntent instance method.

    PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent,PendingIntent.FLAG_CANCEL_CURRENT);