Android(安卓)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);        }    }

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