sensor_light.txt

// permission
<uses-feature android:name="android.hardware.sensor.accelerometer"  android:required="true" />
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
   
   

//code
public class MainActivity extends AppCompatActivity implements SensorEventListener  {

    Sensor sensor;
    SensorManager sensorManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        sensorManager=(SensorManager)getSystemService(Context.SENSOR_SERVICE);
        sensor=sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);

    }

    @Override
    public  void onResume(){
        super.onResume();
        sensorManager.registerListener(this,sensor,SensorManager.SENSOR_DELAY_NORMAL);

    }
    @Override
    public  void onPause(){
        super.onPause();
        sensorManager.unregisterListener(this);
    }

 MediaPlayer mp;
    boolean isrunning=false;
    @Override
    public void onSensorChanged(SensorEvent event) {

if (event.values[0]>40 && isrunning==false){
    isrunning=true;
    mp=new MediaPlayer();
    try {
        mp.setDataSource("http://server6.mp3quran.net/thubti/001.mp3");
        mp.prepare();
        mp.start();

    } catch (IOException e) {
        e.printStackTrace();
    }
}


    }

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

    }
}