GameKit Namespace

The GameKit namespace provides easy communication between iPhone/iPod Touch devices.

Classes

GKAchievement

Represents an achievement in the game.

GKAchievementChallenge

A challenge to a player to complete a specific GKAchievement.

GKAchievementDescription

A combination of text and images that describe a GKAchievement.

GKAchievementViewController

A GKGameCenterViewController that presents a standard user experience to display achievement progress.

GKAchievementViewController.GKAchievementViewControllerAppearance

Appearance class for objects of type GKAchievementViewController.

GKAchievementViewControllerDelegate

A delegate object that allows GKAchievementViewController to respond to lifecycle events.

GKBasePlayer
GKCategoryResult

Category and title results from the asynchronous LoadCategoriesAsync() method.

GKChallenge

A challenge issued by a player to another player.

GKChallengeComposeResult

Holds the return values from the asynchronous method ChallengeComposeControllerAsync(String, GKPlayer[], UIViewController).

GKChallengeEventHandler

The singleton Instance is used to respond to events relating to GKChallenges.

GKChallengeEventHandlerDelegate

A delegate object that allows the application developer fine-grained response to life-cycle events relating to GKChallenges, such as receiving or completing a challenge.

GKChallengeEventHandlerDelegate_Extensions

Extension methods to the IGKChallengeEventHandlerDelegate interface to support all the methods from the GKChallengeEventHandlerDelegate protocol.

GKChallengeListener

A base class for GKLocalPlayerListener.

GKChallengeListener_Extensions

Extension methods to the IGKChallengeListener interface to support all the methods from the GKChallengeListener protocol.

GKChallengesViewController
GKChallengesViewControllerDelegate
GKCloudPlayer
GKDataEventArgs

Provides data for the DataReceived event.

GKDataReceivedEventArgs

Provides data for the ReceiveData event.

GKDataReceivedForRecipientEventArgs

Provides data for the DataReceivedForRecipient event.

GKDialogController
GKErrorEventArgs

Provides data for the DidFailWithError and E:GameKit.GKErrorEventArgs.DidFailWithError events.

GKErrorExtensions

Extension methods for the GameKit.GKError enumeration.

GKFriendRequestComposeViewController

A UINavigationController that presents a screen for sending friend requests.

GKFriendRequestComposeViewController.GKFriendRequestComposeViewControllerAppearance

Appearance class for objects of type GKFriendRequestComposeViewController.

GKFriendRequestComposeViewControllerDelegate

A delegate object that allows fine-grained response to GKFriendRequestComposeViewController life-cycle events.

GKGameCenterControllerDelegate

A delegate object that allows fine-grained response to GKGameCenterViewController events.

GKGameCenterViewController

Game Center user interface to present leaderboards and achievements.

GKGameSession
GKGameSessionErrorCodeExtensions

Extension methods for the GameKit.GKGameSessionErrorCode enumeration.

GKGameSessionEventListener_Extensions
GKIdentityVerificationSignatureResult

Holds the return values from the asynchronous method GenerateIdentityVerificationSignatureAsync()

GKInvite

A matchmaking invitation sent to another player.

GKInviteEventListener

A base class for GKLocalPlayerListener.

GKInviteEventListener_Extensions

Extension methods to the IGKInviteEventListener interface to support all the methods from the GKInviteEventListener protocol.

GKLeaderboard

A class that represents a leaderboard stored in Game Center.

GKLeaderboardSet

Contains a set of GKLeaderboard objects.

GKLeaderboardViewController

A GKGameCenterViewController that presents leaderboards to the player.

GKLeaderboardViewController.GKLeaderboardViewControllerAppearance

Appearance class for objects of type GKLeaderboardViewController.

GKLeaderboardViewControllerDelegate

A delegate object that allows fine-grained control over GKLeaderboardViewController events.

GKLocalPlayer

Represents the authenticated local player.

GKLocalPlayer.Notifications

Notification posted by the GKLocalPlayer class.

GKLocalPlayerListener

A listener that listens for challenges, invitations, and turn based events.

GKMatch

A peer-to-peer network managed by Game Center.

GKMatchConnectionChangedEventArgs

Provides data for the StateChangedForPlayer event.

GKMatchDelegate

A delegate object that allows fine-grained control over GKMatch events.

GKMatchDelegate_Extensions

Extension methods to the IGKMatchDelegate interface to support all the methods from the GKMatchDelegate protocol.

GKMatchEventArgs

Provides data for the DidFindMatch event.

GKMatchmaker

A class that creates matches between players and receives invitations to potential matches.

GKMatchmakerViewController

A UIViewController that presents a standard UI for inviting friends or to allow Game Center to fill remaining players for a match.

GKMatchmakerViewControllerDelegate

A delegate object that allows fine-grained control over GKMatchmakerViewController events.

GKMatchmakerViewControllerDelegate_Extensions

Extension methods to the IGKMatchmakerViewControllerDelegate interface to support all the methods from the GKMatchmakerViewControllerDelegate protocol.

GKMatchmakingPlayerEventArgs

Provides data for the HostedPlayerDidAccept event.

GKMatchmakingPlayersEventArgs

Provides data for the DidFindHostedPlayers event.

GKMatchReceivedDataFromRemotePlayerEventArgs

Provides data for the DataReceivedFromPlayer event.

GKMatchRequest

Contains the parameters for a new match.

GKNotificationBanner

A banner that can be used to display text to a player.

GKPeerChangedStateEventArgs

Provides data for the PeerChanged event.

GKPeerConnectionEventArgs

Provides data for the Failed, E:GameKit.GKPeerConnectionEventArgs.ConnectionRequest and E:GameKit.GKPeerConnectionEventArgs.Failed events.

GKPeerPickerController

A View Controller that can be use to discover other players on other iPhones or iPads.

GKPeerPickerControllerDelegate

Delegate object for the GKPeerPickerController class.

GKPeerPickerControllerDelegate_Extensions

Extension methods to the IGKPeerPickerControllerDelegate interface to support all the methods from the GKPeerPickerControllerDelegate protocol.

GKPlayer

Game Center information about a player.

GKPlayer.Notifications

Notification posted by the GKPlayer class.

GKPlayerErrorEventArgs
GKPlayerEventArgs

Provides data for the ReceivedAcceptFromHostedPlayer event.

GKPlayersEventArgs

Provides data for the DidFindPlayers event.

GKSavedGame

Contains information that is needed to locate and load a saved game.

GKSavedGameListener

Application developers override this clas to respond to conflicts or player modifications in saved games.

GKSavedGameListener_Extensions

Extension methods to the IGKSavedGameListener interface to support all the methods from the GKSavedGameListener protocol.

GKScore

Information about a game score.

GKScoreChallenge

A GKChallenge based on a GKScore. Success requires equaling or bettering the score.

GKSession

Provides the functionality necessary to discover and connect to nearby iPhones and iPads over Bluetooth.

GKSessionDelegate

Delegate for the GKSession class.

GKSessionDelegate_Extensions

Extension methods to the IGKSessionDelegate interface to support all the methods from the GKSessionDelegate protocol.

GKStateEventArgs

Provides data for the StateChanged event.

GKTurnBasedEventHandler

A singleton object used to respond to important messages relating to turn-based matches.

GKTurnBasedEventHandlerDelegate

A delegate object that is allows fine-grained response to GKTurnBasedEventHandler events.

GKTurnBasedEventHandlerDelegate_Extensions

Extension methods to the IGKTurnBasedEventHandlerDelegate interface to support all the methods from the GKTurnBasedEventHandlerDelegate protocol.

GKTurnBasedEventListener

Listens for events in turn-based games.

GKTurnBasedEventListener_Extensions

Extension methods to the IGKTurnBasedEventListener interface to support all the methods from the GKTurnBasedEventListener protocol.

GKTurnBasedExchange

Manages the exchange of turn data, accounting for game actions that players take either in turn or out of turn.

GKTurnBasedExchangeReply

Contains a player's response to a turn exchange.

GKTurnBasedMatch

A type of game match that uses store-and-forward to share data and allow for asynchronous turn-taking.

GKTurnBasedMatchmakerViewController

A UINavigationController that provides a standard UX for managing turn-based matches.

GKTurnBasedMatchmakerViewController.GKTurnBasedMatchmakerViewControllerAppearance

Appearance class for objects of type GKTurnBasedMatchmakerViewController.

GKTurnBasedMatchmakerViewControllerDelegate

A delegate object that allows fine-grained response to GKTurnBasedMatchmakerViewController events.

GKTurnBasedParticipant

Stores information about a participant in a turn-based match.

GKVoiceChat

An object that allows players in a match to speak to each other.

GKVoiceChatClient

The model that GKVoiceChatService uses.

GKVoiceChatClient_Extensions

Extension methods to the IGKVoiceChatClient interface to support all the methods from the GKVoiceChatClient protocol.

GKVoiceChatService

Provides voice chat over connected iPhones/iPads.

GKVoiceChatServiceErrorExtensions

Extension methods for the GameKit.GKVoiceChatServiceError enumeration.

Interfaces

IGKAchievementViewControllerDelegate

Interface representing the required methods (if any) of the protocol GKAchievementViewControllerDelegate.

IGKChallengeEventHandlerDelegate

Interface representing the required methods (if any) of the protocol GKChallengeEventHandlerDelegate.

IGKChallengeListener

Interface representing the required methods (if any) of the protocol GKChallengeListener.

IGKChallengesViewControllerDelegate
IGKFriendRequestComposeViewControllerDelegate

Interface representing the required methods (if any) of the protocol GKFriendRequestComposeViewControllerDelegate.

IGKGameCenterControllerDelegate

Interface representing the required methods (if any) of the protocol GKGameCenterControllerDelegate.

IGKGameSessionEventListener
IGKInviteEventListener

Interface representing the required methods (if any) of the protocol GKInviteEventListener.

IGKLeaderboardViewControllerDelegate

Interface representing the required methods (if any) of the protocol GKLeaderboardViewControllerDelegate.

IGKLocalPlayerListener

Interface representing the required methods (if any) of the protocol GKLocalPlayerListener.

IGKMatchDelegate

Interface representing the required methods (if any) of the protocol GKMatchDelegate.

IGKMatchmakerViewControllerDelegate

Interface representing the required methods (if any) of the protocol GKMatchmakerViewControllerDelegate.

IGKPeerPickerControllerDelegate

Interface representing the required methods (if any) of the protocol GKPeerPickerControllerDelegate.

IGKSavedGameListener

Interface representing the required methods (if any) of the protocol GKSavedGameListener.

IGKSessionDelegate

Interface representing the required methods (if any) of the protocol GKSessionDelegate.

IGKTurnBasedEventHandlerDelegate

Interface representing the required methods (if any) of the protocol GKTurnBasedEventHandlerDelegate.

IGKTurnBasedEventListener

Interface representing the required methods (if any) of the protocol GKTurnBasedEventListener.

IGKTurnBasedMatchmakerViewControllerDelegate

Interface representing the required methods (if any) of the protocol GKTurnBasedMatchmakerViewControllerDelegate.

IGKViewController
IGKVoiceChatClient

Interface representing the required methods (if any) of the protocol GKVoiceChatClient.

Enums

GKAuthenticationType
GKChallengeState

An enumeration whose values specify the states of a GKChallenge.

GKConnectionState
GKError

An enumeration whose values specify Game Kit errors.

GKGameCenterViewControllerState

An enumeration whose values specify the current ViewState of a GKGameCenterViewController.

GKGameSessionErrorCode
GKInviteeResponse

An enumeration whose values specify the possible responses of a remote player to a GKInvite.

GKInviteRecipientResponse

Enumerates responses to game play invitations.

GKLeaderboardPlayerScope

An enumeration whose values specify whether a GKLeaderboard should display global results or only for friends.

GKLeaderboardTimeScope

An enumeration whose values specify the amount of time to which a player's best score is restricted.

GKMatchSendDataMode

An enumeration that allows data transmission to trade off speed for reliability.

GKMatchType

An enumeration whose values specify the form of a match.

GKPeerConnectionState

An enumeration whose values specify the state of a peer-to-peer connection.

GKPeerPickerConnectionType

An enumeration whose values specify acceptable ping for peer-to-peer connections.

GKPhotoSize

An enumeration whose values specify the size of a photo being loaded by LoadPhoto(GKPhotoSize, GKPlayerPhotoLoaded).

GKPlayerConnectionState

An enumeration whose values specify the connection state of a GKPlayer.

GKSendDataMode

An enumeration that allows data transmission to trade off speed for reliability.

GKSessionMode

The session mode.

GKTransportType
GKTurnBasedExchangeStatus

Enumerates turn status information.

GKTurnBasedMatchOutcome

An enumeration whose values specify valid outcomes of turn-based matches.

GKTurnBasedMatchStatus

An eumeration whose values specify the status of a turn-based match. (See Status.)

GKTurnBasedParticipantStatus

An enumeration whose values specify the status of turn-based participants. (See Status.)

GKVoiceChatPlayerState

An enumeration whose values specify the state of a GKVoiceChat channel. (See GKPlayerStateUpdateHandler.)

GKVoiceChatServiceError

Errors returned by the GKVoiceChatService.

Delegates

GKAchievementDescriptionHandler

A delegate that is called by LoadAchievementDescriptions(GKAchievementDescriptionHandler).

GKCategoryHandler

A delegate that is called by LoadCategories(GKCategoryHandler).

GKChallengeComposeHandler

Completion handler for for the ChallengeComposeControllerAsync(String, GKPlayer[], UIViewController) method.

GKChallengePredicate

A delegate returned by several properties in GKChallengeEventHandler.

GKCompletionHandler

A delegate passed to LoadAchievements(GKCompletionHandler) that specifies behavior after the downloading of achievements from Game Center is completed.

GKFriendsHandler

A delegate used with LoadFriends(GKFriendsHandler) and FindPlayers(GKMatchRequest, GKFriendsHandler) that defines behavior after the request completes.

GKIdentityVerificationSignatureHandler

Completion handler for the GenerateIdentityVerificationSignature(GKIdentityVerificationSignatureHandler) method.

GKImageLoadedHandler

A delegate passed to GKAchievementDescription that defines behavior after the image has been loaded.

GKInviteHandler

A delegate that is used to define behavior after a response to a GKInvite.

GKLeaderboardSetsHandler

Completion handler for the LoadLeaderboardSets(GKLeaderboardSetsHandler) method.

GKLeaderboardsHandler

Completion handler for the LoadLeaderboards(GKLeaderboardsHandler) method.

GKMatchReinvitation

A delegate used with ShouldReinvitePlayer that allows the application developer to control whether a player should be reinvited.

GKMatchReinvitationForDisconnectedPlayer

Completion handler that app developers can specify for the ShouldReinviteDisconnectedPlayer property.

GKNotificationMatch

A delegate used with FindMatch(GKMatchRequest, GKNotificationMatch) that specifies behavior after a match has been made.

GKPlayerPhotoLoaded

A delegate used with LoadPhoto(GKPhotoSize, GKPlayerPhotoLoaded) to specify behavior after the photo is loaded.

GKPlayersHandler

A delegate used with LoadPlayersForIdentifiers(String[], GKPlayersHandler) to specify behavior to happen after the players are loaded.

GKPlayerStateUpdateHandler

A delegate used with PlayerStateUpdateHandler that specifies behavior when the player's GKVoiceChatPlayerState changes.

GKQueryHandler

A delegate used with QueryActivity(GKQueryHandler) and QueryPlayerGroupActivity(nint, GKQueryHandler) to specify behavior after the query is completed.

GKScoresLoadedHandler

A delegate used with LoadScores(GKScoresLoadedHandler) that specifies behavior after the scores are loaded.

GKTurnBasedMatchData

A delegate that is used with LoadMatchData(GKTurnBasedMatchData) to specify behavior after the data is loaded.

GKTurnBasedMatchesRequest

A delegate used with LoadMatches(GKTurnBasedMatchesRequest) to specify behavior after the matches have been loaded.

GKTurnBasedMatchRequest

A delegate that specifies the completion handler for FindMatch(GKMatchRequest, GKTurnBasedMatchRequest).

Remarks

The framework provides the foundation to send data between nearby iPhone/iPod touch devices (using Bluetooth) and to provide voice chat between the devices.