itunes里面的歌曲封面怎么获取

可以自己上网找专辑封面的，保存到电脑里。在itunes里点这张专辑的“显示简介”，然后在“专辑封面”里把复制进去就可以了。注意的大小，如果横竖比例不行的话，itunes会把它截掉一部分

该为使用如下代码解析得到：

参考源码中，音乐目录：

packages/apps/Music/src/com/android/music/MusicUtilsjava中函数：getArtwork(context, song_id, album_id, true)

public static Bitmap getArtwork(Context context, long song_id, long album_id,

boolean allowdefault) {

if (album_id < 0) {

// This is something that is not in the database, so get the album art directly

// from the file

if (song_id >= 0) {

Bitmap bm = getArtworkFromFile(context, song_id, -1);

if (bm != null) {

return bm;

}

}

if (allowdefault) {

return getDefaultArtwork(context);

}

return null;

}

ContentResolver res = contextgetContentResolver();

Uri uri = ContentUriswithAppendedId(sArtworkUri, album_id);

if (uri != null) {

InputStream in = null;

try {

in = resopenInputStream(uri);

return BitmapFactorydecodeStream(in, null, sBitmapOptions);

} catch (FileNotFoundException ex) {

// The album art thumbnail does not actually exist Maybe the user deleted it, or

// maybe it never existed to begin with

Bitmap bm = getArtworkFromFile(context, song_id, album_id);

if (bm != null) {

if (bmgetConfig() == null) {

bm = bmcopy(BitmapConfigRGB_565, false);

if (bm == null && allowdefault) {

return getDefaultArtwork(context);

}

}

} else if (allowdefault) {

bm = getDefaultArtwork(context);

}

return bm;

} finally {

try {

if (in != null) {

inclose();

}

} catch (IOException ex) {

}

}

}

return null;

}

private static Bitmap getArtworkFromFile(Context context, long songid, long albumid) {

Bitmap bm = null;

byte [] art = null;

String path = null;

if (albumid < 0 && songid < 0) {

throw new IllegalArgumentException("Must specify an album or a song id");

}

try {

if (albumid < 0) {

Uri uri = Uriparse("content://media/external/audio/media/" + songid + "/albumart");

ParcelFileDescriptor pfd = contextgetContentResolver()openFileDescriptor(uri, "r");

if (pfd != null) {

FileDescriptor fd = pfdgetFileDescriptor();

bm = BitmapFactorydecodeFileDescriptor(fd);

}

} else {

Uri uri = ContentUriswithAppendedId(sArtworkUri, albumid);

ParcelFileDescriptor pfd = contextgetContentResolver()openFileDescriptor(uri, "r");

if (pfd != null) {

FileDescriptor fd = pfdgetFileDescriptor();

bm = BitmapFactorydecodeFileDescriptor(fd);

}

}

} catch (FileNotFoundException ex) {

}

if (bm != null) {

mCachedBit = bm;

}

return bm;

}

private static Bitmap getDefaultArtwork(Context context) {

BitmapFactoryOptions opts = new BitmapFactoryOptions();

optsinPreferredConfig = BitmapConfigRGB_565;

return BitmapFactorydecodeStream(

contextgetResources()openRawResource(Rdrawableplay_img_default), null, opts);

}

private static final Uri sArtworkUri = Uriparse("content://media/external/audio/albumart");

private static final BitmapFactoryOptions sBitmapOptions = new BitmapFactoryOptions();

private static Bitmap mCachedBit = null;

获取cursor:

myCur = getContentResolver()query(

MediaStoreAudioMediaEXTERNAL_CONTENT_URI,

new String[] { MediaStoreAudioMediaTITLE,

MediaStoreAudioMediaDURATION,

MediaStoreAudioMediaARTIST,

MediaStoreAudioMedia_ID,

MediaStoreAudioMediaALBUM,

MediaStoreAudioMediaDISPLAY_NAME,

MediaStoreAudioMediaDATA,

MediaStoreAudioMediaALBUM_ID}, null,null, null);

myCurmoveToPosition(position);

设置专辑封面：

long songid = myCurgetLong(3);

long albumid = myCurgetLong(7);

Bitmap bm = MusicUtilsgetArtwork(this, songid, albumid,true);

if(bm != null){

Logd(TAG,"bm is not null==========================");

playImgsetImageBitmap(bm);

}else{

Logd(TAG,"bm is null============================");

}

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