PHLive protocol describes messages sent by a
PHLive instance in response to playback events when playing the motion and sound content associated with a Live Photo. To receive these messages, implement the methods in this protocol in one of your controller objects and assign that object to the
delegate property of a Live Photo view.
- iOS 9.1+
- macOS 10.12+
- Mac Catalyst 13.0+
- tvOS 10+