如何获得当前正在播放的歌曲的专辑封面

问题描述

我希望能够获得当前正在播放的歌曲的专辑封面.我可以使用

I want to be able to get the album art of the song that is currently playing. I am able to get the name, album, artist with the use of

 private BroadcastReceiver mReceiver = new BroadcastReceiver() {

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        String cmd = intent.getStringExtra("command");
        Log.v("tag ", action + " / " + cmd);
        String artist = intent.getStringExtra("artist");
        String album = intent.getStringExtra("album");
        String track = intent.getStringExtra("track");
        Log.v("tag", artist + ":" + album + ":" + track);
        Fullname = (artist + ":" + album + ":" + track);
        Toast.makeText(MusicPlayer.this, track, Toast.LENGTH_SHORT).show();
        update();

但是，这对获取专辑封面没有帮助.此处要求获取专辑插图的大多数帖子都呼吁使用

However, this does not help me with getting album art. Most of the posts on here that ask for getting album art call for the use of

但是我似乎无法弄清楚它是如何工作的.当我尝试使用

But I can't seem to figure out how to work it. When I tried to use

Cursor cursor = getActivity().managedQuery(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
            new String[] {MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ALBUM_ART},
            MediaStore.Audio.Albums._ID+ "=?",
            new String[] {String.valueOf(albumId)},
            null);

if (cursor.moveToFirst()) {
    String path = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART));
    // do whatever you need to do
}

(来自此处)或与此类似的任何内容，我一直遇到没有AlbumId的问题.我读到我应该将专辑ID设置为

(From here ) or anything similar to this I keep running into the problem of not having a albumId. I read that I should set albumid to

相册ID = cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID))

但是如果没有另一个光标，我似乎无法获得Long，如果不使用预先存在的白蛋白，我将无法弄清楚该怎么做.任何帮助将不胜感激.

but I can't seem to get a Long without having another cursor which I can't figure out how to do to without the use of a pre-existing albumid. Any help would be greatly appreciated.

推荐答案

获取当前播放歌曲的专辑ID并调用以下函数以获取专辑封面:

Get Album ID of current playing song and call following function to get Album Art :

public static Bitmap getAlbumart(Context context,Long album_id){
    Bitmap bm = null;
    BitmapFactory.Options options = new BitmapFactory.Options();
    try{
        final Uri sArtworkUri = Uri.parse("content://media/external/audio/albumart");
        Uri uri = ContentUris.withAppendedId(sArtworkUri, album_id);
        ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r");
        if (pfd != null){
            FileDescriptor fd = pfd.getFileDescriptor();
            bm = BitmapFactory.decodeFileDescriptor(fd, null, options);
            pfd = null;
            fd = null;
        }
    } catch(Error ee){}
    catch (Exception e) {}
    return bm;
}

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