Android TV开发中所有的遥控器按键监听

public class MainActivity extends Activity {
 
    private String  TAG="key";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
 
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
 
        switch (keyCode) {
 
           case KeyEvent.KEYCODE_ENTER:     //确定键enter
           case KeyEvent.KEYCODE_DPAD_CENTER:
               Log.d(TAG,"enter--->");
 
              break;
 
           case KeyEvent.KEYCODE_BACK:    //返回键
               Log.d(TAG,"back--->");
 
               return true;   //这里由于break会退出，所以我们自己要处理掉 不返回上一层
 
           case KeyEvent.KEYCODE_SETTINGS: //设置键
               Log.d(TAG,"setting--->");
 
               break;
 
           case KeyEvent.KEYCODE_DPAD_DOWN:   //向下键
 
                /*    实际开发中有时候会触发两次，所以要判断一下按下时触发 ，松开按键时不触发
                 *    exp:KeyEvent.ACTION_UP
                 */
                 if (event.getAction() == KeyEvent.ACTION_DOWN){   
 
                    Log.d(TAG,"down--->");
                }
 
                 break;
 
           case KeyEvent.KEYCODE_DPAD_UP:   //向上键
               Log.d(TAG,"up--->");
 
               break;
 
           case     KeyEvent.KEYCODE_0:   //数字键0
               Log.d(TAG,"0--->");
 
               break;
 
           case KeyEvent.KEYCODE_DPAD_LEFT: //向左键
 
               Log.d(TAG,"left--->");
 
               break;
 
           case KeyEvent.KEYCODE_DPAD_RIGHT:  //向右键
               Log.d(TAG,"right--->");
                break;
 
           case KeyEvent.KEYCODE_INFO:    //info键
               Log.d(TAG,"info--->");
 
               break;
 
           case KeyEvent.KEYCODE_PAGE_DOWN:     //向上翻页键
            case KeyEvent.KEYCODE_MEDIA_NEXT:
                  Log.d(TAG,"page down--->");
 
                break;
 
 
            case KeyEvent.KEYCODE_PAGE_UP:     //向下翻页键
            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
                  Log.d(TAG,"page up--->");
 
                break;
 
            case KeyEvent.KEYCODE_VOLUME_UP:   //调大声音键
                 Log.d(TAG,"voice up--->");
 
                break;
 
            case KeyEvent.KEYCODE_VOLUME_DOWN: //降低声音键
                 Log.d(TAG,"voice down--->");
 
                 break;
             case KeyEvent.KEYCODE_VOLUME_MUTE: //禁用声音
                  Log.d(TAG,"voice mute--->");
                 break;
 
            break;
          default:
             break;
        }
 
        return super.onKeyDown(keyCode, event);
 
    }
 
}

home键的监听要监听广播：

 class  HomeRecaiver extends BroadcastReceiver{
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if(action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)){
 
                String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);
                if(SYSTEM_DIALOG_REASON_HOME_KEY.equals(reason)){
                    Toast.makeText(MainActivity.this,"home键触发",0).show();
                    Log.d(TAG, "home键触发");
                }
            }
        }
 
    }

在oncreate()注册广播

    public final String SYSTEM_DIALOG_REASON_KEY = "reason";
    public final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
    /**
     * 注册广播
     */
    private void initReceiver() {
 
        homeReceiver = new HomeRecaiver();
        IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
        registerReceiver(homeReceiver, filter);
    }

退出注销广播

@Override
    protected void onDestroy() {
        super.onDestroy();
        if(homeReceiver!=null){
            unregisterReceiver(homeReceiver);
        }
    }