我怎么能显示专辑封面使用MediaStore.Audio.Albums.ALBUM_ART？ [英] How can I display Album Art using MediaStore.Audio.Albums.ALBUM_ART?

问题描述

我试图建立一个MP3播放器，我想ImageView的显示各自的歌曲的专辑封面。我已经试过以下，但它不能正常工作。

I'm trying to build a MP3 player and I want the ImageView to display the album art of respective songs. I've tried the following, but it doesn't work.

albumcover = (ImageView) findViewById(R.id.cover);

String coverPath = songsList.get(songIndex).get(MediaStore.Audio.Albums.ALBUM_ART);
Drawable img = Drawable.createFromPath(coverPath);
albumcover.setImageDrawable(img);

当我尝试播放的歌曲，我得到的是在ImageView的一个空白屏幕。

When I try to play the songs, all I get is a blank screen in the ImageView.

推荐答案

下面是我如何获得专辑封面一首歌曲：

Here's how I get album art for a song:

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
}

ALBUMID 引用 MediaStore.Audio.Media.ALBUM_ID 这首歌。

如果你正在寻找专辑封面特定歌曲（而不是在专辑列表），据我知道这是因为 ALBUM_ART 是 MediaStore.Audio.Albums ，并不能直接作为歌曲的元数据。

If you're are looking for album art for a particular song (rather than in a list of albums), as far as I know it's a two-stage process since ALBUM_ART is a property of MediaStore.Audio.Albums and is not available directly as song metadata.

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