苹果音乐套件按标识符播放专辑不起作用

Question

我创建了一个按钮，它获取所选专辑的商店id并将其放入音乐播放器的队列中，但由于某些原因，它无法播放并返回以下错误：

Failed to prepareToPlay error: Error Domain=MPMusicPlayerControllerErrorDomain Code=6

这是按钮的代码(我把玩家的vars放在那里，这样这里更容易(

var storeIds: [String] = [ "ID" ]
Button(action: {
let player = MPMusicPlayerController.applicationQueuePlayer
let queue  = MPMusicPlayerStoreQueueDescriptor(storeIDs: storeIds)
storeIds = ["(album.id)".replacingOccurrences(of: "l.", with: "")]

print("ID: ", storeIds) // Example ID:  ["Qn4Bnha"]
player.setQueue(with: storeIds)
player.play()
})

此外，我删除了"；l."；从id开始，因为每个相册都以不需要的内容开头。

Answer 1

如果你试图播放库中的专辑，那么我也有问题。

据我所知，库歌曲的MusicItemID与专辑歌曲不同，播放器无法播放。库专辑也是如此。如果我获得了库歌曲的id，并将另一个请求发送到-https://api.music.apple.com/v1/me/library/albums/｛id｝/controlog，然后将其设置为队列；它运行良好。

您可以获取相册的本地ID，然后向目录发出另一个请求作为解决方法。如果Apple Music上有一张专辑，那么它应该会起作用。

这里有一个对我来说很好的例子：

do {
/// First request to get the heavy rotation albums
guard let url = URL(string: "https://api.music.apple.com/v1/me/history/heavy-rotation") else { return }

let request = MusicDataRequest(urlRequest: URLRequest(url: url))
let response = try await request.response()

let heavyRotationAlbums = try JSONDecoder().decode(MusicItemCollection<Album>.self, from: response.data)

/// Get the first album
guard let album = heavyRotationAlbums.first else { return }

/// Get the local album ID
let albumID = album.id
/// Another request to get the album from Apple Music Catalog
guard let catalogURL = URL(string: "https://api.music.apple.com/v1/me/library/albums/(albumID)/catalog") else { return }
let catalogRequest = MusicDataRequest(urlRequest: URLRequest(url: catalogURL))
let catalogResponse = try await catalogRequest.response()
let albums = try JSONDecoder().decode(MusicItemCollection<Album>.self, from: catalogResponse.data)
/// Get the same album, but with the catalog ID
guard let catalogAlbum = albums.first else { return }
/// Encode the parameters 
let data = try JSONEncoder().encode(catalogAlbum.playParameters)
/// Decode the parameters to `MPMusicPlayerPlayParameters`
let playParameters = try JSONDecoder().decode(MPMusicPlayerPlayParameters.self, from: data)

// Create the queue
let queue = MPMusicPlayerPlayParametersQueueDescriptor(playParametersQueue: [playParameters])

let player = MPMusicPlayerController.applicationMusicPlayer
/// Set the queue
player.setQueue(with: queue)
try await player.prepareToPlay()
/// Finally, play the album!
player.play()
} catch {
print(error)
}