Android 应用程序在几声蜂鸣声后意外停止

我为一个应用程序编写了一个代码，当手机倾斜一定角度时，它会发出嘟嘟声。它在一开始工作正常，但当我把手机倾斜到第七或第八次以后，它就不再发出哔哔声了。当我检查应用程序状态时，它显示为正在运行。我的服务代码是

public class TheService extends Service implements SensorEventListener {
    public static final String TAG = TheService.class.getName();
    public static final int SCREEN_OFF_RECEIVER_DELAY = 500;

    private SensorManager mSensorManager = null;
    private WakeLock mWakeLock = null;
    private float lastY;

    MediaPlayer mp1;
    private MediaPlayer mMediaPlayer;


    /*
     * Register this as a sensor event listener.
     */
    private void registerListener() {
        mSensorManager.registerListener(this,
                mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
                SensorManager.SENSOR_DELAY_NORMAL);
    }

    /*
     * Un-register this as a sensor event listener.
     */
    private void unregisterListener() {
        mSensorManager.unregisterListener(this);
    }

    public BroadcastReceiver mReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            Log.i(TAG, "onReceive("+intent+")");

            if (!intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
                return;
            }

            Runnable runnable = new Runnable() {
                public void run() {
                    Log.i(TAG, "Runnable executing.");
                    unregisterListener();
                    registerListener();
                }
            };

            new Handler().postDelayed(runnable, SCREEN_OFF_RECEIVER_DELAY);
        }
    };

    public void onAccuracyChanged(Sensor sensor, int accuracy) {


        Log.i(TAG, "onAccuracyChanged().");


    }

    public void onSensorChanged(SensorEvent event) {
        Log.i(TAG, "onSensorChanged().");

        lastY = event.values[2];

        if (lastY  <9  && lastY > 8) {   
        mMediaPlayer = MediaPlayer.create(this, R.raw.help);


        mMediaPlayer.start(); 


        }    


        }


    @Override
    public void onCreate() {
        super.onCreate();

        mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

        PowerManager manager =
            (PowerManager) getSystemService(Context.POWER_SERVICE);
        mWakeLock = manager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);

        registerReceiver(mReceiver, new IntentFilter(Intent.ACTION_SCREEN_OFF));
    }

    @Override
    public void onDestroy() {

    mMediaPlayer.release();
        unregisterReceiver(mReceiver);
        unregisterListener();
        mWakeLock.release();
        stopForeground(true);


    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        super.onStartCommand(intent, flags, startId);

        startForeground(Process.myPid(), new Notification());
        registerListener();
        mWakeLock.acquire();

        return START_STICKY;
    }

}

我不确定安卓是否正在扼杀它，或者我的代码中是否存在任何问题。如果安卓一直这么做，该应用程序就不会显示为在后台运行。请帮忙。

您有日志吗

避免重新创建MediaPlayer：

if(mMediaPlayer == null)
  mMediaPlayer = MediaPlayer.create(this, R.raw.help);

---

我不知道如何检查！！你能告诉我它现在工作正常吗。非常感谢，伊切沃。再问一个问题；因为我正在使用wakelock，所以即使手机处于待机状态，我的应用程序也会发出嘟嘟声，这会耗尽电池电量吗？是的，它会耗尽电池电量。从-始终确保禁用不需要的传感器，尤其是在活动暂停时。否则可能会在几个小时内耗尽电池电量。请注意，当屏幕关闭时，系统不会自动禁用传感器。

if(mMediaPlayer == null)
  mMediaPlayer = MediaPlayer.create(this, R.raw.help);