GKGameActivityListener An object that responds to activity events. Declarationprotocol GKGameActivityListener Mentioned inCreating activities for your gameCreating engaging challenges from leaderboards TopicsResponding to an activityplayer(_:wantsToPlay:completionHandler:) RelationshipsInherited ByGKLocalPlayerListener See AlsoActivitiesCreating activities for your gameGKGameActivityGKGameActivityDefinition