1 //查询系统的音频库
2 public static List<MusicBean> getMusicInfo(Context context){
3 List<MusicBean> musicList= new ArrayList<>();
4 //查询音频数据库
5 Cursor c = context.getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, MediaStore.Audio.Media.DURATION+">=?", new String[]{"20000"}, MediaStore.Audio.Media.DEFAULT_SORT_ORDER);
6
7 while (c.moveToNext()){
8 MusicBean musicBean=new MusicBean();
9 musicBean.setTitle(c.getString(c.getColumnIndex(MediaStore.Audio.Media.TITLE)));
10 musicBean.setName(c.getString(c.getColumnIndex(MediaStore.Audio.Media.DISPLAY_NAME)));
11 //对未知艺术家进行判断
12 String singer = c.getString(c.getColumnIndex(MediaStore.Audio.Media.ARTIST));
13 if(singer==null || "".equals(singer) || "<unknown>".equals(singer)){
14 singer = "未知艺术家";
15 }
16 musicBean.setSinger(singer);
17 musicBean.setAlbum(c.getString(c.getColumnIndex(MediaStore.Audio.Media.ALBUM)));
18 musicBean.setSize(c.getLong(c.getColumnIndex(MediaStore.Audio.Media.SIZE)));
19 musicBean.setTime(c.getLong(c.getColumnIndex(MediaStore.Audio.Media.DURATION)));
20 musicBean.setUrl(c.getString(c.getColumnIndex(MediaStore.Audio.Media.DATA)));
21 musicList.add(musicBean);
22
23 }
24 //关闭游标，释放资源
25 c.close();
26 return musicList;
27 }
