playableContentManager(_:initializePlaybackQueueWithCompletionHandler:)
Asks the delegate to prepare suggested content for playback.
Declaration
optional func playableContentManager(_ contentManager: MPPlayableContentManager, initializePlaybackQueueWithCompletionHandler completionHandler: @escaping @Sendable ((any Error)?) -> Void)optional func playableContentManagerInitializePlaybackQueue(_ contentManager: MPPlayableContentManager) async throwsParameters
- contentManager:
The content manager that initiated the request.
- completionHandler:
A block that the system calls after content is ready for playback. The block takes the following parameter:
- error
Pass Nil 227m0 if playback successfully began. If playback can’t begin, pass an error to indicate the reason.
Discussion
iOS calls this method when the user performs an action that, in context, might indicate intent to begin playing content using your app. For example, if the user frequently listens to audio content in your app with headphones while at a particular location, iOS might call this method upon plugging in headphones when the user is at that location. Your app responds by choosing appropriate content, performing any app-specific actions necessary to prepare the content for playback, and setting the nowPlayingInfo property of the shared MPNowPlayingInfoCenter object to indicate to the user that this content is ready to play.
After preparing content for playing, call the provided completionHandler block with an argument of nil; or, if your app can’t prepare content, call the completion handler an error that indicates the reason.