I have set three repeat daily alarm as time 12：00，16：00 and 20：00. But I
found that the first alarm would present at 11：59：34， 12：00：12 and
12：00:56. I have checked many documents, no one gives me an answer. Please
help me!
Here are my code:
//set PendingIntent.
Intent alarmIntent = new Intent(context, AlarmReceiver.class);
alarmIntent.putExtra("alarmType", 3);
PendingIntent pendingIntentMoring = PendingIntent.getBroadcast(context, 51,
alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
PendingIntent pendingIntentAfternoon = PendingIntent.getBroadcast(context,
52, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
PendingIntent pendingIntentEvening = PendingIntent.getBroadcast(context,
53, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
//clear the alarm manager before set the new alarm
managerMorning.cancel(pendingIntentMoring);
managerAfternoon.cancel(pendingIntentAfternoon);
managerEvening.cancel(pendingIntentEvening);
//set new alarm
managerMorning.setRepeating(AlarmManager.RTC_WAKEUP,
cal1.getTimeInMillis(),AlarmManager.INTERVAL_DAY, pendingIntentMoring);
managerAfternoon.setRepeating(AlarmManager.RTC_WAKEUP,
cal2.getTimeInMillis(),AlarmManager.INTERVAL_DAY, pendingIntentAfternoon);
managerEvening.setRepeating(AlarmManager.RTC_WAKEUP,
cal3.getTimeInMillis(),AlarmManager.INTERVAL_DAY, pendingIntentEvening);
//set Receiver
public void onReceive(Context context, Intent intent) {
Intent myMessageintent = new Intent(context, UpDateDiaryMessage.class);
myMessageintent.putExtra("alarmType", 3);
context.startService(myMessageintent);
}
I have test it many times. I cannot get the alarm at 12:00:00, but I got
two or three alarm around at 12:00:00. I dont know why this happened.
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