Android Alarm Manager多次触发

Question

我的闹钟管理器一天多次触发。我想在每天早上8点开一次。

这是我的代码。

Intent intent = new Intent(this, AlarmReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(this,0, intent,0);
    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);

    Calendar firingCal = Calendar.getInstance();
    Calendar currentCal = Calendar.getInstance();

    firingCal.set(Calendar.HOUR_OF_DAY,8);
    firingCal.set(Calendar.MINUTE,00);
    firingCal.set(Calendar.SECOND,00);
    firingCal.set(Calendar.AM_PM, Calendar.AM);

    if(firingCal.getTimeInMillis()>=currentCal.getTimeInMillis()){
        //set from today
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,firingCal.getTimeInMillis(),AlarmManager.INTERVAL_DAY,pendingIntent);
    }else{
        //set for next day
        firingCal.add(Calendar.DAY_OF_MONTH, 1);
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,firingCal.getTimeInMillis(),AlarmManager.INTERVAL_DAY,pendingIntent);
    }