播放（非库）Apple Music内容-请求失败

Question

我正在尝试使用以下代码播放专辑…

let predicate = MPMediaPropertyPredicate(value: "1459938538", forProperty: MPMediaItemPropertyAlbumPersistentID)
let iCloudPredicate = MPMediaPropertyPredicate(value: true, forProperty: MPMediaItemPropertyIsCloudItem)
let query = MPMediaQuery.albums()
query.filterPredicates = [predicate, iCloudPredicate]

let mp = MPMusicPlayerController.applicationMusicPlayer
mp.setQueue(with: query)
mp.play()

但是它失败了

[SDKPlayback] -[MPMusicPlayerController prepareToPlay] timeout

[MediaRemote] MRC <MPCPlayerPath: route=<MPAVEndpointRoute: 0x280f1a280 name=iPhone uid=LOCAL> origin=iPhoneID bundleID=com.apple.MediaPlayer.RemotePlayerService playerID=MPMusicPlayerApplicationController>: Undo optimistic state [failed] command=Play error=Error Domain=MPCPlayerRequestErrorDomain Code=1000 "Failed to send command 0 (MRMediaRemoteCommandHandlerStatus = 1)" UserInfo={NSDebugDescription=Failed to send command 0 (MRMediaRemoteCommandHandlerStatus = 1), MPCPlayerErrorKeyMediaRemoteCommandHandlerStatus=1}

[SDKPlayback] -[MPMusicPlayerController play] completed error: Error Domain=MPCPlayerRequestErrorDomain Code=1000 "Failed to send command 0" UserInfo={NSDebugDescription=Failed to send command 0, NSUnderlyingError=0x28344c810 {Error Domain=MPCPlayerRequestErrorDomain Code=1000 "Failed to send command 0 (MRMediaRemoteCommandHandlerStatus = 1)" UserInfo={NSDebugDescription=Failed to send command 0 (MRMediaRemoteCommandHandlerStatus = 1), MPCPlayerErrorKeyMediaRemoteCommandHandlerStatus=1}}}

•如果删除谓词，它将可以播放本地专辑。

•  SKCloudServiceController.requestAuthorization是.authorized

•设备具有.musicCatalogPlayback和.addToCloudMusicLibrary功能。

• 1459938538似乎是有效的ID（适用于最新的麦当娜专辑-https: //music.apple.com/gb/album/madame-x-deluxe/1459938538）

关于如何播放不在我的音乐库中的专辑的任何提示吗？

Answer 1

MPMediaQuery 仅适用于库项目。您需要使用 Web Apple Music 搜索 API 来获取用于设置队列的商店 ID。