I am really struggeling to integrate GameCenter into my game. I have created a leader-board in my GameCenter account for my app and I am trying to test it on TestFlight before I submit it for review, however that is not currently working.
I have a button in my game that when I click it should load the leader-board, but currently nothing happens.
Also when the layout gets loaded I try to authenticate but I can't see that happen either. Does anyone have a good example or a tutorial so I can follow that to learn how to exactly integrated GameCenter into my game?
Many thanks fin advance.