Question

我正在尝试在我的应用程序中处理媒体按钮按下，但我尝试的任何东西似乎都工作。这是我的广播接收器：

private final BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (intent.getAction().equalsIgnoreCase("android.intent.action.MEDIA_BUTTON")) {
                Log.d("EVENT", "Media button pressed");
                startStop();
            }
        }
    };

我在onCreate方法中注册了它：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar); 

    am = (AudioManager)getSystemService(Context.AUDIO_SERVICE);        
    am.registerMediaButtonEventReceiver(new ComponentName(getPackageName(), RemoteControlReceiver.class.getName()));     
}

我还尝试过其他方法，比如创建一个单独的BroadcastReceiver类并通过AndroidManifest注册它......

编辑：我回到了“单独接收班级”这样做的方式，现在这该死的东西效果很好......让我解释一下;这是我全新的BroadcastReceiver类：

public class RemoteControlReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (Intent.ACTION_MEDIA_BUTTON.equals(intent.getAction())) {
            KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
            Log.d("EVENT", "Key code: "+event.getKeyCode());
            if ((KeyEvent.KEYCODE_HEADSETHOOK == event.getKeyCode()) && (event.getAction() == KeyEvent.ACTION_DOWN)) {
                Log.d("EVENT", "Received media button press");
                if (MainActivity.timer.getStarted())
                    MainActivity.timer.stopTimer();
                else
                    MainActivity.timer.startTimer();
            }
        }
    }
}

在清单中注册它：

<receiver android:name=".RemoteControlReceiver">
            <intent-filter>
                <action android:name="android.intent.action.MEDIA_BUTTON" />
            </intent-filter>
        </receiver>

这就出现在日志中：

11-23 01:47:02.848 16956-16956/com.example.andrej.ssvcounter D/EVENT: Key code: 79
11-23 01:47:02.848 16956-16956/com.example.andrej.ssvcounter D/EVENT: Received media button press
11-23 01:47:02.873 16956-16956/com.example.andrej.ssvcounter D/EVENT: Key code: 79
11-23 01:47:04.931 16956-16956/com.example.andrej.ssvcounter D/AndroidRuntime: Shutting down VM

然后整个事情崩溃了。由于某种原因，两个意图被发送，我试图用ACTION_DOWN条件过滤掉一个，但它没有帮助......

在android上处理MEDIA BUTTONS

0 个答案: