通过A2DP / AVRCP发送跟踪信息 [英] send track informations via A2DP/AVRCP

问题描述

我试图通过A2DP / AVRCP发送的轨道信息。眼下，音乐是完美的串流播放，但在接收器（即：汽车音响），跟踪信息屏是空白的（这是不使用颇受玩家在那里的情况下）。 你知道吗？

I'm trying to send track informations via A2DP/AVRCP. Right now, music is perfectly streamed, but on the "receiver" (ie: car audio), the "track informations screen" is blank (which is not the case using popular players out there). Any idea ?

推荐答案

这code为我工作：

private static final String AVRCP_PLAYSTATE_CHANGED = "com.android.music.playstatechanged";
private static final String AVRCP_META_CHANGED = "com.android.music.metachanged";

private void bluetoothNotifyChange(String what) {
    Intent i = new Intent(what);
    i.putExtra("id", Long.valueOf(getAudioId()));
    i.putExtra("artist", getArtistName());
    i.putExtra("album",getAlbumName());
    i.putExtra("track", getTrackName());
    i.putExtra("playing", isPlaying());        
    i.putExtra("ListSize", getQueue());
    i.putExtra("duration", duration());
    i.putExtra("position", position());
    sendBroadcast(i);
}

呼叫bluetoothNotifyChange与这取决于您的播放状态相应的意图（如上定义）：暂停/播放/元数据更改

Call bluetoothNotifyChange with the appropriate intent (defined above) depending on your playback status: pause/playing/metadata changed.

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