@Override

    public boolean dispatchKeyEvent(KeyEvent event) {

        //返回键  cocosActivity不相应onbackPressed和onKeyDown

        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_DOWN){

            LogUtils.i("dispatchKeyEvent");

            getMainState();

        }

        return super.dispatchKeyEvent(event);

    }