我想创建一个像Play Music这样的Android音乐播放器,所以我从github导入了Google的环球音乐播放器,但我无法确定插入代码的位置,以便从本地存储中读取音乐。我知道一切都提供了背景音乐服务,通知栏等。但我无法弄清楚如何从手机存储中读取音乐文件。
环球音乐播放器 - https://github.com/googlesamples/android-UniversalMusicPlayer
我在android中制作了一些简单的应用程序但没有创建任何这种复杂的应用程序。我介于初学者和中级之间。请帮忙!
答案 0 :(得分:0)
<强>建议强>
嗨!使用简单的音乐播放器查看my repository。歌曲是从外部存储装入的。支持Pre-Lollipop。
<强>解强>
作为解决歌曲加载问题的解决方案:您可以从外部存储加载歌曲,如下所示:
private ArrayList songs = new ArrayList&lt;&gt;(); //歌曲是一些数据模型
public void getSongList() {
ContentResolver musicResolver = getContentResolver();
Uri musicUri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
Uri artworkUri = Uri.parse("content://media/external/audio/albumart");
Cursor musicCursor = musicResolver.query(musicUri, null, null, null, null);
if (musicCursor != null && musicCursor.moveToFirst()) {
// song title
int titleColumn = musicCursor.getColumnIndex
(MediaStore.Audio.Media.TITLE);
// song unique id
int idColumn = musicCursor.getColumnIndex
(MediaStore.Audio.Media._ID);
// song's artist
int artistColumn = musicCursor.getColumnIndex
(MediaStore.Audio.Media.ARTIST);
// path to album art
int albumIdColumn = musicCursor.getColumnIndex
(MediaStore.Audio.Media.ALBUM_ID);
do {
long thisId = musicCursor.getLong(idColumn);
String thisTitle = musicCursor.getString(titleColumn);
String thisArtist = musicCursor.getString(artistColumn);
long albumId = musicCursor.getLong(albumIdColumn);
String albumArt = "";
try {
albumArt = (ContentUris.withAppendedId(artworkUri, albumId)).toString();
Log.d(TAG, "TEST Album art: " + albumArt);
} catch (Exception ex) {
ex.printStackTrace();
}
// Adding new song to ArrayList
songs.add(new Song(thisId, thisTitle, thisArtist, albumArt));
}
while (musicCursor.moveToNext());
}
if (musicCursor != null)
musicCursor.close();
}