Android传感器和线程

我想创建一个应用程序，当主线程仍在工作时，我的传感器在另一个线程中获取值。我尝试了另一个线程，但是没有用。我尝试使用服务和IntentService，但是传感器在主线程之后启动。我当前的代码是这个。

MyService.java

public class MyService extends IntentService implements SensorEventListener 
{
    public MyService()
    {
        super("MyService");
    }

    Sensor mLight;
    SensorManager mSensorManager;
    float max;
    float currentLux;
    float currentProx;

    @Override
    public IBinder onBind(Intent intent) 
    {
        Log.d("Service", "On bind");
        return null;
    }

    @Override
    public void onCreate() 
    {
        Log.d("Service", "On create");
    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) 
    {
        // TODO Auto-generated method stub

    }

    @Override
    public void onSensorChanged(SensorEvent event) 
    {
        if( event.sensor.getType() == Sensor.TYPE_LIGHT)
        {
            currentLux=(int) event.values[0];
            float perc=(float) ((currentLux*100)/max);
            Log.d("Light", String.valueOf(perc));
        }   
        else if(event.sensor.getType() == Sensor.TYPE_PROXIMITY)
        {
            currentProx=(int) event.values[0];
            Log.d("Proximity", String.valueOf(currentProx));
        }
    }

    @Override
    public void onDestroy() 
    {
        Toast.makeText(this, "Service Stopped", Toast.LENGTH_LONG).show();
        Log.d("Service", "On stop");
        mSensorManager.unregisterListener(this);
    }

    @Override
    public void onStart(Intent intent, int startid) 
    {
        Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
        Log.d("Service", "On start");
    }

    @Override//here u should register sensor and write onStartCommand not onStart
    public int onStartCommand(Intent intent, int flags, int startId) 
    {
        mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
        mSensorManager.registerListener(this, mSensorManager
                .getDefaultSensor(Sensor.TYPE_LIGHT),
                SensorManager.SENSOR_DELAY_FASTEST);
        mLight = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
        mSensorManager.registerListener(this, mSensorManager
                .getDefaultSensor(Sensor.TYPE_PROXIMITY),
                SensorManager.SENSOR_DELAY_FASTEST);
        max=mLight.getMaximumRange();
        Log.d("MAX=", String.valueOf(max));
        return Service.START_STICKY;
    }

    @Override
    protected void onHandleIntent(Intent intent) 
    {
    }

}

侦听器

public class Listeners extends Activity implements OnClickListener 
{
     Button button0;
     Intent listenersIntent;

    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.listeners);
        lista= new ArrayList<Float>();
        button0 = (Button) findViewById(R.id.button0);
        button0.setOnClickListener(this);
        listenersIntent = new Intent(this, MyService.class);
        startService(listenersIntent);
        for (int i=0; i<999; i++)
            Log.d("Main", String.valueOf(i));
    }

    @Override
    public void onClick(View arg0) 
    {
        stopService(listenersIntent);
    }
}

我的问题是，在我希望它们一起运行时，在获得任何接近度/光照值之前，我总是得到1-999。你能帮我吗？