Top "Game-center" questions

The inner workings and use of Apple's GameCenter API in your apps.

Cant receive game center invitations

I am trying to develop a realtime multiplayer game for IOS by using cocos2d by using the tutorial on …

ios cocos2d-iphone game-center invitation
iOS 6 Game Center authenticateHandler can't login after a cancel

When using the authenticateHandler in iOS 6, game center won't present the login view if the user cancels it. I realize …

ios6 game-center
the game is not recognized by game center

Hi I am trying to add game center to my iphone app. I have done the following steps 1) I have …

iphone authentication game-center
Game Center - Sending and receiving data

EDIT: I have made a clean, new project, but still can't get it working. Please download it, there is a …

iphone objective-c multiplayer game-center
authenticateWithCompletionHandler: is deprecated: first deprecated in iOS 6.0

I am working on game which is using Game Center and I get next warning; ... 'authenticateWithCompletionHandler:' is deprecated: first …

iphone ios game-center
How to accept an invitation in Game Center

I'm trying to implement invitations with Game Center and there's one thing that i don't understand. Ok, i've sent an …

iphone game-center multiplayer
Is there a way to reset Achievement progress for my GameCenter sandbox account?

I have a GameCenter Sandbox-Account have tested my game, earned achievements, etc. Now I've made some changes and want to …

sandbox reset game-center achievements
Game Center not authenticating using Swift

I'm trying to authenticate the local player using swift, but every time I get a false value for the .authenticated …

xcode authentication game-center swift
Avoid Leaderboard Hacking on Game Center

Has anyone found a way to avoid leaderbaord hacking on Game Center or at least make it more complicated? You …

objective-c app-store-connect game-center
MKMapView's user location is wrong on startup or resume

When I start my application fresh, or resume after a long time, MKMapView's notion of the userLocation is wrong and …

iphone mkmapview game-center userlocation