Android(安卓)TV开发中所有的遥控器按键监听及注意事项，新增home键监听
16lz
2022-03-10
简单记录下android 盒子开发遥控器的监听 ，希望能帮到新入门的朋友们
不多说，直接贴代码
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); }}效果如下：
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
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