Asks the delegate to begin playback of the specified content item.
- iOS 7.1+
- Media Player
The content manager that initiated the request.
The index for the indicated item.
A block to call after initiating a playback request.
The block takes the following parameter:
If you have successfully begun playback, pass
nil. If you cannot begin media playback due to an error, pass an
iOS calls this method when a media player interface needs to play a media item. Your app responds by beginning playback of the requested media item. After beginning playback, call the provided
completion block with an argument of
nil; or, if your app cannot begin playback, call the completion handler with an
NSError object describing the error.