关于android:Android-TV-控制焦点按键速度

在 AndroidTV 我的项目中，应用了 RecyclerView，然而有一个问题是，当长按按键的时候，焦点容易飞的掉，故在所有的 Activity 的父类 BaseActivity 中进行按键速度管制，间接贴上代码，如下。此办法能够重点用于解决 RecyclerView 按键长按焦点飞掉乱掉的问题。

• 按键速度管制管制
• 增加了按键声音

public class BaseActivity extends FragmentActivity {
    public AudioManager mAudioMgr = null;
    public SoundPool sp;// 申明一个 SoundPool
    public int keypress;// 定义一个整型用 load（）；来设置 suondID
    public int translation;
    public static final int EATKEYEVENT = 5;// 是否屏蔽按键的事件，管制按键的频率
    private static final int keyEventTime = 10; // 最短的按键事件应该是在 100ms
    private static boolean eatKeyEvent = false;
    private Handler mHandler  =new Handler(){
        @Override
        public void handleMessage(Message msg) {switch (msg.what) {
                case EATKEYEVENT:
                    eatKeyEvent = false;}
        }
    };


    @Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);
        mAudioMgr = (AudioManager) getSystemService(AUDIO_SERVICE);
        mAudioMgr.unloadSoundEffects();
        sp = new SoundPool(10, AudioManager.STREAM_SYSTEM, 5);// 第一个参数为同时播放数据流的最大个数，第二数据流类型，第三为声音品质
        keypress = sp.load(this, R.raw.keypress_standard, 1); // 把你的声音素材放到 res/raw 里，第 2 个参数即为资源文件，第 3 个为音乐的优先级
        translation = sp.load(this, R.raw.translation, 1);
    }

    @Override
    public boolean dispatchKeyEvent(KeyEvent event) {if(event.getKeyCode()  == KeyEvent.KEYCODE_BACK ||  event.getKeyCode() == KeyEvent.KEYCODE_DPAD_CENTER){return super.dispatchKeyEvent(event);
        }

        if (eatKeyEvent) {return true;} else {if (event.getAction() == KeyEvent.ACTION_DOWN) {sp.play(keypress, 1, 1, 0, 0, 1);
            }
            if (event.getRepeatCount()>=2){
                eatKeyEvent = true;
                mHandler.removeMessages(EATKEYEVENT);
                Message msg = mHandler.obtainMessage(EATKEYEVENT);
                mHandler.sendMessageDelayed(msg, keyEventTime);
            }
        }

        return super.dispatchKeyEvent(event);
    }

    public void playSound(){if (sp != null){sp.play(keypress, 1, 1, 0, 0, 1);
        }
    }

    public void playTranslation(){if (sp != null){sp.play(translation, 1, 1, 0, 0, 1);
        }
    }
}