I can't find how to show leaderboard in my app.
I have leaderboard ID in the iTunes Connect. I tried a few things but I got always the message "Player is not signed in".
Can someone please help me understand how to show the leaderboard with Objective-C?
Thanks.
Edit: I think I know how to show the leaderboard but I can test it because I don't know how to sign in.
If you're getting that error, it may not necessarily be a leaderboard problem, it means you're not signed into Game Center on your device (or simulator). I'm not sure which on you're using but you can sign in by going into settings, and going into the game center tab and signing in with your apple id or by logging into the game center app directly. You can also refer to this entry if this does not work: SO: Game Center Error