@Override
    public void destroy() {
        initialized = false;

        if (sensorJoyInput != null) {
            sensorJoyInput.destroy();
        }

        setView(null);
    }
Resumes the joystick device listeners.
Used to resume when the activity comes to the top of the stack
jme3-android/src/main/java/com/jme3/input/android/AndroidJoyInput.java