AlarmManager尽快而不是在设定的时间调用intent服务

Question

我有一个setExact警报设置在我的应用程序，当它达到那个点，而不是激活警报在指定的时间，它激活它尽快！

我的alarmmanager代码

@TargetApi(Build.VERSION_CODES.M)
public void setUpAlarmManager(long time) {

    final Intent intentAlarm = new Intent(this, AlarmService.class);
    final PendingIntent pendingIntent = PendingIntent.getService(this, 100, intentAlarm, PendingIntent.FLAG_ONE_SHOT);
    final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

    alarmManager.setExact(AlarmManager.RTC_WAKEUP, time, pendingIntent);
    final Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            alarmManager.cancel(pendingIntent);
        }
    }, 1000);
    Log.i(TAG, "setUpAlarmManager: " + time);
}

public class AlarmService extends IntentService {

private static final String TAG = "Tag";

// private Ringtone ringtoneAlarm;

public AlarmService() {
    super("AlarmService");
//     ringtoneAlarm = null;
    Log.i(TAG, "AlarmService: ");
}

@Override
protected void onHandleIntent(Intent intent) {
    Log.i(TAG, "onHandleIntent: ");
    Uri alarmTone = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
    Ringtone ringtoneAlarm = RingtoneManager.getRingtone(getApplicationContext(), alarmTone);
    ringtoneAlarm.play();
}

@Override
public void onDestroy() {
    Log.i(TAG, "onDestroy: ");
    super.onDestroy();
//    ringtoneAlarm.stop();
}


}

Answer 1

要将警报设置为从现在起的32秒,您可以这样做：

private void setAlarmToFuthure(long time){
        Calendar cal_alarm = Calendar.getInstance();
        cal_alarm.add(Calendar.SECOND, (int)time); // Here you add the desired value to the current time (for example: 32 seconds)

        final Intent intentAlarm = new Intent(this, AlarmService.class);
        final PendingIntent pendingIntent = PendingIntent.getService(this, 100, intentAlarm, PendingIntent.FLAG_ONE_SHOT);
        final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        alarmManager.setExact(AlarmManager.RTC_WAKEUP, cal_alarm.getTimeInMillis(), pendingIntent);
    }