@Override
    public Joystick[] loadJoysticks(InputManager inputManager) {
        // load the simulated joystick for device orientation
        super.loadJoysticks(inputManager);
        // load physical gamepads/joysticks
        joystickList.addAll(joystickJoyInput.loadJoysticks(joystickList.size(), inputManager));
        // return the list of joysticks back to InputManager
        return joystickList.toArray( new Joystick[joystickList.size()] );
    }
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/AndroidJoyInput14.java