title: GKTurnedBased Match, receiving an invitation
body: <p>I'm building a turned based game in iOS.
  I have a custom UI and so far I can authenticate the user, find random matches, invite friends, and send data to and from the players.
  My problem is this: When a player invites another player, the second player gets a push notification. The second player needs to go to the gamecenter to accept or decline the game and then come back. I have not found a way to create a custom GUI for this. The methods shown in Apple's APIs are deprecated ([GKTurnBasedEventHandler sharedTurnBasedEventHandler].delegate = self; | handleInviteFromGameCenter: | and so on) [<a href="https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/GameKit_Guide/ImplementingaTurn-BasedMatch/ImplementingaTurn-BasedMatch.html#//apple_ref/doc/uid/TP40008304-CH15-SW8]" rel="nofollow">https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/GameKit_Guide/ImplementingaTurn-BasedMatch/ImplementingaTurn-BasedMatch.html#//apple_ref/doc/uid/TP40008304-CH15-SW8]</a>.</p>
  
  <p>Can someone please point me to the right direction? I don't mind if it is Objective-c or Swift.</p>
  
  <p>Thank you </p>
  
  <p>UPDATE:</p>
  
  <p>I created TurnBasedSkeleton (github.com/mhatzitaskos/TurnBasedSkeleton). This project aims to create a skeleton for any turn based game using GameCenter. As GameCenter seems to lack in documentation and tutorials, especially as far as turn based gaming is concerned, I decided to create this project to help others who might want to integrate GameCenter to their projects.</p>