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Android 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

IT知识遥控器注意事项TV开发

幼敏悟过人，读书辄成诵。这篇文章主要讲述Android TV开发中所有的遥控器按键监听及注意事项，新增home键监听相关的知识，希望能为你提供帮助。
原文:Android 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 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 StringTAG="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; caseKeyEvent.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：
Android 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

文章图片

home键的监听要监听广播：
classHomeRecaiver 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); }

【Android 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】退出注销广播
@Override protected void onDestroy() { super.onDestroy(); if(homeReceiver!=null){ unregisterReceiver(homeReceiver); } }



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