服务上的接近传感器

Question

我正在尝试在我的Android应用程序中启动和接近传感器服务，但代码只是似乎不起作用。代码运行有界命令，它也运行Localbinder。但该应用程序仍未显示接近传感器吐司。

这是我的代码。

public class proxy_service extends Service implements SensorEventListener {

    private SensorManager mSensorManager;
    private Sensor mProximity;
    private static final int SENSOR_SENSITIVITY = 4;
    @Nullable

    public final IBinder b = new Localbinder();
    @Override
    public IBinder onBind(Intent intent) {
        Log.w("this","started");
        mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        mProximity = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
        Toast.makeText(getBaseContext(),"Sevice on bind",Toast.LENGTH_LONG).show();
        return b;
    }

    public class Localbinder extends Binder

    {
        proxy_service getservice() throws InterruptedException{

            Toast.makeText(getBaseContext(),"Sevice staaaaaarted",Toast.LENGTH_LONG).show();

            return proxy_service.this;
        }
    }



    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        mProximity = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);

        //mSensorManager.registerListener(this,mProximity,SensorManager.SENSOR_DELAY_NORMAL);
        Toast.makeText(getBaseContext(),"Sevice staaaaaarted",Toast.LENGTH_LONG).show();
        return START_STICKY;
    }



    @Override
    public void onSensorChanged(SensorEvent event) {
        if(event.sensor.getType() ==  Sensor.TYPE_PROXIMITY){
            if (event.values[0] >= -SENSOR_SENSITIVITY && event.values[0] <= SENSOR_SENSITIVITY) {
                //near
                Toast.makeText(getBaseContext(), "near", Toast.LENGTH_SHORT).show();
            } else {
                //far
                Toast.makeText(getBaseContext(), "far", Toast.LENGTH_SHORT).show();
            }

        }
        mSensorManager.registerListener(this,mProximity,SensorManager.SENSOR_DELAY_NORMAL);
    }



    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {

    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Toast.makeText(this,"Sevice destroyed",Toast.LENGTH_LONG).show();
    }
}

我还在清单文件中注册了我的代码

<service android:name=".proxy_service"></service>

这就是我在mainActivity中开始服务的方式

 @Override
    protected void onStart() {
        super.onStart();

        Intent i = new Intent(this,proxy_service.class);
        bindService(i, connection, Context.BIND_AUTO_CREATE);
        //startService(i);
        //Toast.makeText(this,"",Toast.LENGTH_LONG).show();

    }

    private ServiceConnection connection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            proxy_service.Localbinder binder = (proxy_service.Localbinder) service;
            try {
                c= binder.getservice();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        }

        @Override
        public void onServiceDisconnected(ComponentName name) {

        }