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这个话题有时会弹出，但我不能让那个东西工作。我的应用程序曾经处理媒体按钮，但在 Android 5.0 之后的 API 发生了变化，它需要使这个应用程序适应“捕捉”蓝牙按钮并“以我的方式”处理它们。

我做了很多搜索，发现：

        final MediaSession session = new MediaSession(this, "spy tag");

    session.setCallback(new MediaSession.Callback() {
        @Override
        public boolean onMediaButtonEvent(final Intent mediaButtonIntent) {
            Toast.makeText(me, "on media button event", Toast.LENGTH_SHORT);
            Log.i("TAG", "GOT EVENT");
            return super.onMediaButtonEvent(mediaButtonIntent);
        }

    });

    session.setFlags(MediaSession.FLAG_HANDLES_MEDIA_BUTTONS |
            MediaSession.FLAG_HANDLES_TRANSPORT_CONTROLS);

    PlaybackState state = new PlaybackState.Builder()
            .setActions(
                    PlaybackState.ACTION_PLAY | PlaybackState.ACTION_PLAY_PAUSE |
                            PlaybackState.ACTION_PLAY_FROM_MEDIA_ID | PlaybackState.ACTION_PAUSE |
                            PlaybackState.ACTION_SKIP_TO_NEXT | PlaybackState.ACTION_SKIP_TO_PREVIOUS)
            .setState(PlaybackState.STATE_PLAYING, 0, 1)
            .build();
    session.setPlaybackState(state);

    session.setActive(true);

但是……还是不行。每当我按下任何媒体按钮时，我都会在 Logcat 中得到这个：

2019-06-16 19:40:14.458 2936-4422/? D/MediaSessionService：发送 KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_MEDIA_NEXT, scanCode=0, metaState=0, flags=0x0, repeatCount=0, eventTime=0, downTime=0, deviceId=-1, source=0x0 }到最后已知的 PendingIntent PendingIntent{afe4538: PendingIntentRecord{13648e com.google.android.youtube broadcastIntent}} 2019-06-16 19:40:14.460 3230-3230/? V/Avrcp: recordKeyDispatched: KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_MEDIA_NEXT, scanCode=0, metaState=0, flags=0x0, repeatCount=0, eventTime=0, downTime=0, deviceId=-1, source=0x0 } 调度到 com.google.android.youtube 2019-06-16 19:40:14.466 2936-4422/? D/MediaSessionService: 发送 KeyEvent { action=ACTION_UP, keyCode=KEYCODE_MEDIA_NEXT, scanCode=0, metaState=0, flags=0x0, repeatCount=0, eventTime=0, downTime=0, deviceId=-1, source=0x0 } 到最后一个已知的 PendingIntent PendingIntent{afe4538: PendingIntentRecord{13648e com.google.android.youtube broadcastIntent}} 2019-06-16 19:40:14.475 3230-3230/? V/Avrcp: recordKeyDispatched: KeyEvent { action=ACTION_UP, keyCode=KEYCODE_MEDIA_NEXT, scanCode=0, metaState=0, flags=0x0, repeatCount=0, eventTime=0, downTime=0, deviceId=-1, source=0x0 } 调度到 com.google.android.youtube

我的应用程序没有收到任何回调。我错过了什么？

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0 回答 0