public void pauseJoysticks() {
        if (sensorJoyInput != null) {
            sensorJoyInput.pauseSensors();
        }
        if (vibrator != null && vibratorActive) {
            vibrator.cancel();
        }

    }
Pauses the joystick device listeners to save battery life if they are not needed.
Used to pause when the activity pauses
jme3-android/src/main/java/com/jme3/input/android/AndroidJoyInput.java