| Interface | Description |
|---|---|
| GKAchievementViewControllerDelegate | Deprecated |
| GKChallengeEventHandlerDelegate | Deprecated |
| GKChallengeListener | |
| GKFriendRequestComposeViewControllerDelegate |
Optional delegate
|
| GKGameCenterControllerDelegate | |
| GKGameSessionEventListener | |
| GKInviteEventListener |
GKInviteEventListener uses the GKLocalPlayerListener mechanism on GKLocalPlayer to listen to the two kinds of invite events that a game must respond to
|
| GKLeaderboardViewControllerDelegate | Deprecated |
| GKLocalPlayerListener | |
| GKMatchDelegate | |
| GKMatchmakerViewControllerDelegate | |
| GKPeerPickerControllerDelegate | Deprecated |
| GKSavedGameListener | |
| GKSessionDelegate | Deprecated |
| GKTurnBasedEventHandlerDelegate | Deprecated |
| GKTurnBasedEventListener | |
| GKTurnBasedMatchmakerViewControllerDelegate | |
| GKVoiceChatClient | Deprecated |