如何使用swift获取当前播放音乐的专辑封面？

我正在尝试使用当前在音乐播放器上播放的歌曲的专辑插图创建UIImageView。 我发现的所有资源都是在objective-c（我不知道）或不工作（也许我没有正确实现）。

我目前正在尝试使用此代码执行此操作：

class ViewController: UIViewController { @IBOutlet weak var backgroundAlbum: UIImageView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. backgroundAlbum.image = MPMediaItemArtwork() } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } 

}

但我收到错误

 backgroundAlbum.image = MPMediaItemArtwork() 

Answer 1

尝试这个：

 //this method is called after you picked a song from music library func 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)) } 

Answer 2

以下是我发现的方法：

  //Grab the controller let sysMP : MPMusicPlayerController & MPSystemMusicPlayerController = MPMusicPlayerController.systemMusicPlayer; //Grab current playing let currItem : MPMediaItem? = sysMP.nowPlayingItem; //Grab currItem's artwork let image : UIImage? = currItem?.artwork?.image(at: CGSize(width: 200, height: 200)); 

这是一个有用的参考：

• MPMusicPlayerController – 媒体播放器| Apple开发人员文档