The command object for playing a previous point in a media item.
- iOS 7.1+
- macOS 10.12.1+
- tvOS 9.0+
- watchOS 5.0+
- Media Player
Use the object in this property to register your app’s handler for jumping to a previous point in the current track. In your handler, skip backwards by the amount specified in the event’s
interval property. You can disable the command if your app does not support it.