Android TV 控制焦点按键速度

在AndroidTV项目中，使用了RecyclerView，但是有一个问题是，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中进行按键速度控制，直接贴上代码，如下。此方法可以重点用于解决RecyclerView按键长按焦点飞掉乱掉的问题。

• 按键速度控制控制
• 添加了按键声音

public class BaseActivity extends FragmentActivity {
    public AudioManager mAudioMgr = null;
    public SoundPool sp;//声明一个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，控制按键的频率
    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，第三为声音质量
        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);
        }
    }
}