What are the steps I need to take to have a button which brings up Game Center Leaderboards? My score type is Distance and I am interested in iOS. I've looked at a few posts but nothing I can find sums it up. Do I need to change my game settings? Do I need to do something on iTunes Connect? What is Leaderboard ID? Responses or links to helpful resources would be appreciated!
Login into https://appstoreconnect.apple.com. Go to My Apps -> select your game -> Features -> Game Center. There you can create a leaderboard. In game, you make navigation button where you want hiscore button to show up and button function is "Game Service".