The image associated with the default leaderboard.
- iOS 7.0+
- macOS 10.8+
A block to be called after the scores are retrieved from the server.
The block receives the following parameters:
Contains the image associated with the leaderboard.
If an error occurred, this error object describes the error. If the operation was completed successfully, the value is
When this method is called, it creates a new background task to handle the request. The method then returns control to your game. Later, when the task is complete, Game Kit calls your completion handler. The completion handler is always called on the main thread.