Question

我已经开发了一个具有抖动功能的应用程序，可以使某些功能正常工作，所以我使用了摇动类并实现了Main Activity，因此在Application运行时它的工作顺利但我的问题是当我的应用程序进入睡眠或杀死或停止时如何检测背景中的抖动（服务）

我的小组课

public class Shaker implements SensorListener
{
    private static final int FORCE_THRESHOLD = 350;
    private static final int TIME_THRESHOLD = 200;
    private static final int SHAKE_TIMEOUT = 500;
    private static final int SHAKE_DURATION = 1000;
    private static final int SHAKE_COUNT = 3;

    private SensorManager mSensorMgr;
    private float mLastX=-1.0f, mLastY=-1.0f, mLastZ=-1.0f;
    private long mLastTime;
    private OnShakeListener mShakeListener;
    private Context mContext;
    private int mShakeCount = 0;
    private long mLastShake;
    private long mLastForce;

    public interface OnShakeListener
    {
        public void onShake();
    }

    public  Shaker(Context context)
    {
        mContext = context;
        resume();
    }

    public void setOnShakeListener(OnShakeListener listener)
    {
        mShakeListener = listener;
    }

    public void resume() {
        mSensorMgr = (SensorManager)mContext.getSystemService(Context.SENSOR_SERVICE);
        if (mSensorMgr == null) {
            throw new UnsupportedOperationException("Sensors not supported");
        }
        boolean supported = mSensorMgr.registerListener(this, SensorManager.SENSOR_ACCELEROMETER, SensorManager.SENSOR_DELAY_GAME);
        if (!supported) {
            mSensorMgr.unregisterListener(this, SensorManager.SENSOR_ACCELEROMETER);
            throw new UnsupportedOperationException("Accelerometer not supported");
        }
    }

    public void pause() {
        if (mSensorMgr != null) {
            mSensorMgr.unregisterListener(this, SensorManager.SENSOR_ACCELEROMETER);
            mSensorMgr = null;
        }
    }

    public void onAccuracyChanged(int sensor, int accuracy) { }

    public void onSensorChanged(int sensor, float[] values)
    {
        if (sensor != SensorManager.SENSOR_ACCELEROMETER) return;
        long now = System.currentTimeMillis();

        if ((now - mLastForce) > SHAKE_TIMEOUT) {
            mShakeCount = 0;
        }

        if ((now - mLastTime) > TIME_THRESHOLD) {
            long diff = now - mLastTime;
            float speed = Math.abs(values[SensorManager.DATA_X] + values[SensorManager.DATA_Y] + values[SensorManager.DATA_Z] - mLastX - mLastY - mLastZ) / diff * 10000;
            if (speed > FORCE_THRESHOLD) {
                if ((++mShakeCount >= SHAKE_COUNT) && (now - mLastShake > SHAKE_DURATION)) {
                    mLastShake = now;
                    mShakeCount = 0;
                    if (mShakeListener != null) {
                        mShakeListener.onShake();
                    }
                }
                mLastForce = now;
            }
            mLastTime = now;
            mLastX = values[SensorManager.DATA_X];
            mLastY = values[SensorManager.DATA_Y];
            mLastZ = values[SensorManager.DATA_Z];
        }
    }

}

主要活动

    public class MainActivity extends Activity implements View.OnClickListener {

      private Shaker shaker;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mainscreen);
shaker = new Shaker(context);

shaker.setOnShakeListener(new Shaker.OnShakeListener() {

            @Override
            public void onShake() {
                    vibrator.vibrate(100);
                }
            }
        });
}

更新内容

public class ShakerService extends Service implements Shaker.OnShakeListener {


    private Shaker mShaker;
    private SensorManager mSensorManager;
    private Sensor mAccelerometer;

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

    public void onCreate() {

        super.onCreate();
        this.mSensorManager = ((SensorManager)getSystemService("sensor"));
        this.mAccelerometer = this.mSensorManager.getDefaultSensor(1);
        mShaker = new Shaker(this);
        mShaker.setOnShakeListener(this);
    }

    @Override
    public void onShake() {
        Utils.DoOnShake(this);
    }

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



    }
}

Answer 1

我已在我的应用程序https://play.google.com/store/apps/details?id=com.deep.profilemaper中创建了此类功能。

要实现此功能，您只需创建后台服务，并在onStartCommand（）服务方法中返回标志START_STICKY。如果有人终止您的服务，此服务将重新启动。

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

        //your code here

        return START_STICKY;

    }

这只是演示。

Answer 2

杀死app后摇动事件：

编译'com.squareup：seismic：1.0.2'

public class serviceShake extends Service implements ShakeDetector.Listener {
    @Override

    public void onCreate() {
        super.onCreate();
        SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        ShakeDetector sd = new ShakeDetector(this);
        sd.start(sensorManager);
//register your sensor manager listener here
    }

    @Override
    public void onDestroy() {
//unregister your listener here
    }

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

    @Override
    public void hearShake() {
        Context ctx = this; // or you can replace **'this'** with your **ActivityName.this**
        try {
            Intent i = ctx.getPackageManager().getLaunchIntentForPackage("com.vyaapaarsamachar");
            ctx.startActivity(i);
        } catch (Exception e) {
            e.printStackTrace();
            // TODO Auto-generated catch block
        }
        Toast.makeText(this, "ShackFromService", Toast.LENGTH_SHORT).show();
    }
}

Android Shake（传感器）服务用于应用程序背景中的抖动检测

2 个答案: