Indicates that the prepared to play status of the media player has changed.
- iOS 3.2–9.0Deprecated
- Mac Catalyst 13.0–13.0Deprecated
- watchOS 2.0–2.0Deprecated
- Media Player
Posted upon change in the prepared-to-play state of an object conforming to the
MPMedia protocol. The object whose state has changed is available as the object associated with the notification.