android - 尽管将位图放在元数据中，但无法在锁定屏幕上获取专辑封面

Question

我无法在锁屏上获取专辑封面，我尝试同时使用 METADATA_KEY_ALBUM_ART 和 METADATA_KEY_ART 但没有任何效果。这是我的代码

    byte[] data = null;
    try {
        mmr.setDataSource(music.getNowPlayingList().get(currentIndex).getPath());
        data = mmr.getEmbeddedPicture();
    } catch (Exception e) {
        e.printStackTrace();
    }
    if (music.getNowPlayingList()!=null && music.getNowPlayingList().size()>music.getIndexOfCurrentSong()) {

        GildeUtils.getBitmapFromGlide(this,data , new GlideInterface() {
            @Override
            public void getBitmap(Bitmap bitmap) {
                //Bitmap b = BitmapFactory.decodeResource(getResources(),R.drawable.nowplaying);
                        mediaSession.setMetadata(new MediaMetadataCompat.Builder()
                        .putBitmap(MediaMetadataCompat.METADATA_KEY_ALBUM_ART,bitmap)
                        .putBitmap(MediaMetadataCompat.METADATA_KEY_DISPLAY_ICON,bitmap)
                        .putString(MediaMetadataCompat.METADATA_KEY_ARTIST, music.getNowPlayingList().get(currentIndex).getArtist())
                        .putString(MediaMetadataCompat.METADATA_KEY_ALBUM, music.getNowPlayingList().get(currentIndex).getAlbum())
                        .putString(MediaMetadataCompat.METADATA_KEY_TITLE, music.getNowPlayingList().get(currentIndex).getTitle())
                        .build());
            }
        });
    }

我还制作了 mediastyle 通知，并将专辑封面设置为其他问题中提到的大图标，还添加了 mediasession.setActive(true) 和音频焦点，但似乎没有任何效果。

Answer 1

所以最后它对我有用:) 添加了 Playbackstate 代码，现在一切似乎都工作正常。

GildeUtils.getBitmapFromGlide(this,data , new GlideInterface() {
            @Override
            public void getBitmap(Bitmap bitmap) {
                if(bitmap==null) {
                    bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.nowplaying);
                }
                        mediaSession.setMetadata(new MediaMetadataCompat.Builder()
                        .putBitmap(MediaMetadataCompat.METADATA_KEY_ALBUM_ART,bitmap)
                        .putBitmap(MediaMetadataCompat.METADATA_KEY_DISPLAY_ICON,bitmap)
                        .putString(MediaMetadataCompat.METADATA_KEY_ARTIST, music.getNowPlayingList().get(currentIndex).getArtist())
                        .putString(MediaMetadataCompat.METADATA_KEY_ALBUM, music.getNowPlayingList().get(currentIndex).getAlbum())
                        .putString(MediaMetadataCompat.METADATA_KEY_TITLE, music.getNowPlayingList().get(currentIndex).getTitle())
                        .build());
                PlaybackStateCompat.Builder stateBuilder = new PlaybackStateCompat.Builder();
                isLockscreenUpdated = true;
                stateBuilder.setActiveQueueItemId(music.getNowPlayingList().get(music.getIndexOfCurrentSong()).getId());

                long actions = PlaybackStateCompat.ACTION_PLAY_PAUSE | PlaybackStateCompat.ACTION_STOP | PlaybackStateCompat.ACTION_SKIP_TO_NEXT | PlaybackStateCompat.ACTION_SKIP_TO_PREVIOUS;

                stateBuilder.setActions(actions);
                stateBuilder.setState(PlaybackStateCompat.STATE_PLAYING, 0, 1.0f);
                mediaSession.setPlaybackState(stateBuilder.build());
            }


        });