获取封面图片由曲 [英] Get cover picture by song

问题描述

是否有可能获得通过歌曲封面图片，而不是由唱片。 因为我有一个自结合专辑的歌曲，他们都有不同的封面图片。 但是，当我想查询他们，我总是得到相同的图片返回。

Is it possible to get a cover picture by song and not by album. Because I have one self combined album with songs and they all have different cover pictures. But when I want to query them I always get the same picture returned.

String[] ARG_STRING = {MediaStore.Audio.Media.ALBUM_ID};
...
String albumCover = _cursor.getString(_cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID));
...
MusicUtils.getArtwork(this, -1, Integer.parseInt(albumID));

所以我想知道它是如何可能得到的歌曲的封面图片。

So i would like to know how it's possible to get an cover image of an song.

我知道MusicUtils支持getArtwork由SongId，但我应该用什么ID，因为MediaStore.Audio.Media._ID是行不通的。

I know MusicUtils supports getArtwork by SongId, but what ID should I use because MediaStore.Audio.Media._ID is not working.

推荐答案

我不熟悉的 MusicUtils ，但是，你应该能够从中获取的封面文件本身使用类MediaMetadataRetriever 。下面是一个简单的code片断展示了如何使用它。引用的URI是内容的URI要检索技术的文件。

I'm not familiar with MusicUtils, however, you should be able to get the cover art from the file itself by using MediaMetadataRetriever. Here is a brief code snippet showing how to use it. The uri referenced is the content uri for the file you want to retrieve the art for.

MediaMetadataRetriever mmr = new MediaMetadataRetriever();
byte[] rawArt;
Bitmap art;
BitmapFactory.Options bfo=new BitmapFactory.Options();

mmr.setDataSource(getApplicationContext(), uri);
rawArt = mmr.getEmbeddedPicture();

// if rawArt is null then no cover art is embedded in the file or is not 
// recognized as such.
if (null != rawArt) 
    art = BitmapFactory.decodeByteArray(rawArt, 0, rawArt.length, bfo);

// Code that uses the cover art retrieved below.

这篇关于获取封面图片由曲的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！