android音乐播放器中专辑封面怎么得到??
千面而一言 2012-10-10 08:43:31 求android高手解答,本人想做一个音乐播放器,现在能得到所有歌曲,可是不能得到歌曲对应的专辑封面,求解,代码如下
Uri albumUri = MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI;//专辑的uri
String[] requestAlbumInfo = {
MediaStore.Audio.Albums._ID,
MediaStore.Audio.Albums.ALBUM_ART,
MediaStore.Audio.Albums.ARTIST,
MediaStore.Audio.Albums.ALBUM };
requestAlbumId = new int[]{//cursors是自己定义的游标
cursors.getColumnIndexOrThrow(MediaStore.Audio.Albums._ID),
cursors.getColumnIndexOrThrow(MediaStore.Audio.Albums.ALBUM_ART),
cursors.getColumnIndexOrThrow(MediaStore.Audio.Albums.ARTIST),
cursors.getColumnIndexOrThrow(MediaStore.Audio.Albums.ALBUM) };
while (cursors.moveToNext()) {//M是自定义的 一个类,设置专辑封面的路径,和专辑的艺术家
m.setAlbumArtPath(cursors.getString(requestAlbumId[1]));
m.setAlbumArtist(cursors.getString(requestAlbumId[2]));
}
结果 得到null,我输出游标的长度是5,我手机里确实5首歌曲。求各路大侠解答????