android alarm manager triggers after time

Question

I realize that this alarm triggers even after finish time in android is a similar question. However, mine's got a little bit different.

I wonder, for example, if i set time to be 14:40, and launch the app at 15:00 (or any other time after 14:40:00), the alarm manager's onReceive method will be triggered immediately.

Actually, this is a confirmation rather than a question since my application seems to do this.

Thank you !

CODE

    Calendar c = Calendar.getInstance();
    c.set(Calendar.HOUR_OF_DAY, 14);
    c.set(Calendar.MINUTE, 40);
    c.set(Calendar.SECOND, 0);
    //System.out.println();

    AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
    am.set(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pendingIntent);

Answer 1

Try with the AlarmManager.setExact()

  AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
  am.setExact(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pendingIntent);