我知道如何通过以下方式获得 MPMediaQuery 的标题:
MPMediaQuery *playlistsQuery = [MPMediaQuery playlistsQuery];
NSArray *items = [playlistsQuery collections];
MPMediaPlaylist *myPlaylist = items.firstObject;
NSLog(@"%@",myPlaylist.name); //"New playlist title"
有谁知道如何访问 MPMediaPlaylist 的封面和描述?
Screenshot - User created Playlist
最佳答案
获取描述很容易,只需使用
var descriptionText: String? { get }
来自
MPMediaPlaylist
要获取用户定义的图像,您必须使用私有(private) API,这是一个扩展,您可以使用它来获取存储在磁盘上的图像,或获取图像的
URL
:extension MPMediaPlaylist {
/**
User selected image for playlist stored on disk.
*/
var userImage: UIImage? {
guard let catalog = value(forKey: "artworkCatalog") as? NSObject else {
return nil
}
let sel = NSSelectorFromString("bestImageFromDisk")
guard catalog.responds(to: sel),
let value = catalog.perform(sel)?.takeUnretainedValue(),
let image = value as? UIImage else {
return nil
}
return image
}
/**
URL for playlist's image.
*/
var imageUrl: URL? {
if let catalog = value(forKey: "artworkCatalog") as? NSObject,
let token = catalog.value(forKey: "token") as? NSObject,
let url = token.value(forKey: "availableArtworkToken") as? String {
return URL(string: "https://is2-ssl.mzstatic.com/image/thumb/\(url)/260x260cc.jpg")
}
return nil
}
}
与往常一样,请记住,当 Apple 在后台更改内容或您的应用程序可能被 App Store 拒绝时,它可能随时停止工作。
关于mpmediapickercontroller - 如何获取 MPMediaPlaylist 的用户定义封面图片和描述?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34132956/