下面的命令将返回所有在外部存储卡上的音乐文件的信息:
Cursor cursor = query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null, null, MediaStore.Audio.Media.DEFAULT_SORT_ORDER);
Cursor cursor = query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null, null, MediaStore.Audio.Media.DEFAULT_SORT_ORDER);
得到cursor后,我们可以调用Cursor的相关方法具体的音乐信息:
歌曲ID:MediaStore.Audio.Media._IDInt id = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media._ID));
歌曲的名称:MediaStore.Audio.Media.TITLEString tilte = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.TITLE));
歌曲的专辑名:MediaStore.Audio.Media.ALBUMString album = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ALBUM));
歌曲的歌手名:MediaStore.Audio.Media.ARTISTString artist = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST));
歌曲文件的路径:MediaStore.Audio.Media.DATAString url = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA));
歌曲的总播放时长:MediaStore.Audio.Media.DURATIONInt duration = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DURATION));
歌曲文件的大小:MediaStore.Audio.Media.SIZEInt size = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.SIZE));