Android 获取本地音乐文件

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public class MusicInfo {
private long id;
private String title;//音乐名称
private String data;//音乐文件
private String album;//专辑
private String artist;//艺人
private int duration;//音乐时长
private long size;//音乐文件大小
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getData() {
return data;
}
public void setData(String data) {
this.data = data;
}
public String getAlbum() {
return album;
}
public void setAlbum(String album) {
this.album = album;
}
public String getArtist() {
return artist;
}
public void setArtist(String artist) {
this.artist = artist;
}
public int getDuration() {
return duration;
}
public void setDuration(int duration) {
this.duration = duration;
}
public long getSize() {
return size;
}
public void setSize(long size) {
this.size = size;
}
}

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private static final Uri URI = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
private static final String[] MUSIC_PROJECTION = new String[] {
MediaStore.Audio.Media._ID,
MediaStore.Audio.Media.TITLE,
MediaStore.Audio.Media.DATA,
MediaStore.Audio.Media.ALBUM,
MediaStore.Audio.Media.ARTIST,
MediaStore.Audio.Media.DURATION,
MediaStore.Audio.Media.SIZE
};
private static final String SELECTION = "mime_type in ('audio/mpeg','audio/x-ms-wma') and bucket_display_name <> 'audio' and is_music > 0 ";
private static final String SORT_ORDER = MediaStore.Audio.Media.DATA;
private List<MusicInfo> getMusicInfo() {
List<MusicInfo> musicInfos = new ArrayList<>();
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(URI, MUSIC_PROJECTION, SELECTION, null, SORT_ORDER);
if (cursor != null) {
while (cursor.moveToNext()) {
MusicInfo musicInfo = new MusicInfo();
long id = cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media._ID));
String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
String data = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
String album = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM));
String artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
int duration = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.DURATION));
long size = cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.SIZE));
musicInfo.setId(id);
if (!TextUtils.isEmpty(title)) {
musicInfo.setTitle(title);
}
if (!TextUtils.isEmpty(data)) {
musicInfo.setData(data);
}
if (!TextUtils.isEmpty(album)) {
musicInfo.setAlbum(album);
}
if (!TextUtils.isEmpty(artist)) {
musicInfo.setArtist(artist);
}
if (duration != 0) {
musicInfo.setDuration(duration);
}
if (size != 0) {
musicInfo.setSize(size);
}
musicInfos.add(musicInfo);
}
cursor.close();
}
return musicInfos;
}