Repeat Alarm Manager At Exact Interval in API=>19?

Question

I had a massive reading and still I think there is not a clear/complete Answer to this question.

First some stuff to clarify : this question is not concern with batt

Answer 1

You can use setExact similarly to setRepeating.

void scheduleAlarm(Context context) {
    AlarmManager alarmMgr = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
    Intent yourIntent = new Intent();
    //TODO configure your intent
    PendingIntent alarmIntent = PendingIntent.getBroadcast(context, MyApplication.ALARM_REQUEST_CODE, yourIntent, PendingIntent.FLAG_UPDATE_CURRENT);
    alarmMgr.setExact(AlarmManager.RTC_WAKEUP, timeToWakeUp, alarmIntent);
}

The two differences are:

1. The timing will be exact (or as nearly as possible)

2. You will have to schedule the next occurrence in the onReceive of your BroadcastReceiver.

     public class AlarmReceiver extends BroadcastReceiver  {
     @Override
     public void onReceive(Context context, Intent intent) {
       //TODO process alarm
       scheduleAlarm(context);
     }}