[英]Song name and album art is not changed when song changed in notification bar in music app
[英]How to show album art , song name ,duration, and the artist name in a ListView
你好,我想為此制作一個android音樂應用,我希望我的listView顯示所有歌曲以顯示該歌曲的專輯封面,藝術家姓名,時長和歌曲名稱
我已經成功顯示了列表視圖中的所有歌曲,但無法顯示專輯封面等
有人可以幫我嗎?
提前致謝
您可以為此使用內容提供程序。
希望這段代碼可以幫助您啟動。
final Cursor mCursor = getContentResolver().query(
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
new String[] { MediaStore.Audio.Media.DISPLAY_NAME,
MediaStore.Audio.Media.DATA,
MediaStore.Audio.Media.ARTIST,
MediaStore.Audio.Media.ALBUM_ID }, null, null,
"LOWER(" + MediaStore.Audio.Media.TITLE + ") ASC");
int count = mCursor.getCount();
String[] songs = new String[count];
if (mCursor.moveToFirst()) {
do {
String songname = mCursor
.getString(mCursor
.getColumnIndexOrThrow(MediaStore.Audio.Media.DISPLAY_NAME));
String sonpath = mCursor.getString(mCursor
.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA));
String artistname = mCursor.getString(mCursor
.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST));
String albumid = mCursor
.getString(mCursor
.getColumnIndexOrThrow(MediaStore.Audio.Media.ALBUM_ID));
} while (mCursor.moveToNext());
Constant.sdCardmusic = allsongs;
}
mCursor.close();
}
如果要獲取專輯圖片,則可以將從上面的代碼獲取的專輯ID傳遞給以下方法:
private Bitmap getArtistImage(String albumid) {
Bitmap artwork = null;
try {
Uri sArtworkUri = Uri
.parse("content://media/external/audio/albumart");
Uri uri = ContentUris.withAppendedId(sArtworkUri,
Long.valueOf(albumid));
ContentResolver res = mContext.getContentResolver();
InputStream in = res.openInputStream(uri);
artwork = BitmapFactory.decodeStream(in);
} catch (Exception e) {
Log.e("Exception", e.toString());
}
return artwork;
}
Google在Github上提供了用於電話,chromecast和AUTO的音樂播放器的絕佳示例, 網址為https://github.com/googlesamples/android-UniversalMusicPlayer
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