如何使用swift获取当前正在播放的音乐的专辑插图？

试试这个：

//this method is called after you picked a song from music libraryfunc mediaPicker(mediaPicker: MPMediaPickerController, didPickMediaItems mediaItemCollection: MPMediaItemCollection) {    dismissViewControllerAnimated(true, completion: nil)    //get current song    let currentSong: MPMediaItem = mediaItemCollection.items[0]    if let artwork: MPMediaItemArtwork = currentSong.valueForProperty(MPMediaItemPropertyArtwork) as? MPMediaItemArtwork{        albumArt.image = artwork.imageWithSize(CGSize(width: x, height: y))    }