AlarmManager簡單用法記錄

Intent intent = new Intent(context, MyBroadcastReceiver.class);
PendingIntent pi= PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
if(Build.VERSION.SDK_INT >= 23){
    alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + INTERVAL, pi);
} else if(Build.VERSION.SDK_INT >= 19){
    alarmManager.setExact(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + INTERVAL, pi);
} else {
    alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + INTERVAL, pi);
}

可以在receiver裏面再寫一次，達到設置定時重複任務的效果。