How to enable proximity sensor in android

Question

I have configured proximeter successfully in my code. Now I want to turn off & on screen programmatically. Code of sensor is working just fine and following method is also getting called.

@Override
public void onSensorChanged(SensorEvent event) {
    // TODO Auto-generated method stub

    PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    WakeLock screenWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"screenWakeLock");

    if (event.values[0] == 0) {
        screenWakeLock.acquire();
        Log.e("onSensorChanged","NEAR");
    } else {
        if (screenWakeLock != null) {
               if(screenWakeLock.isHeld())
                  screenWakeLock.release();
               screenWakeLock = null;
        }
        Log.e("onSensorChanged","FAR");  
    }
} 

My problem is that screen is not getting turn off. I also have added required permission in code. What else could be the reason ???

Answer 1

Check the changes submitted for this code, https://github.com/jitsi/jitsi-android/compare/6d356fa637ae...7aba481d773f

getPowerManager().newWakeLock( 32, "proximity_off");