How can I link a user to a specific leaderboard in the Game Center?

Question

I have set up my leader board in the Game Center.

How do I make it so when the user clicks the high score button, it takes them right to the specific leader board in the Game Center?

Is there a way to do it without using a specific link in a UIWebView?

I would prefer the Game Center to open outside of the app. My app is tailored for iOS7 and above.

Answer 1

Far far ago, under iOS7, U can't control what's happening inside the GKGameCenterViewController, just this 3 options:

typedef NS_ENUM(NSInteger, GKGameCenterViewControllerState) {
    GKGameCenterViewControllerStateDefault = -1,
    GKGameCenterViewControllerStateLeaderboards,
    GKGameCenterViewControllerStateAchievements,
    GKGameCenterViewControllerStateChallenges,
};

U can set this property:

@property (nonatomic, assign)   GKGameCenterViewControllerState viewState;

Like this (an example):

- (void)presentLeaderboardsOnViewController:(UIViewController *)viewController {
    GKGameCenterViewController *leaderboardViewController = [[GKGameCenterViewController alloc] init];
    leaderboardViewController.viewState = GKGameCenterViewControllerStateLeaderboards;
    leaderboardViewController.gameCenterDelegate = self;
    [viewController presentViewController:leaderboardViewController animated:YES completion:nil];
}

From iOS7 and above u have this property (never try it):

@property (nonatomic, retain)   NSString *leaderboardIdentifier __OSX_AVAILABLE_STARTING( __MAC_NA, __IPHONE_7_0); // Showing specified leaderboard

So just set this property, and there u go, u have opened the GKGameCenterViewController with your wanted Leaderboard :)

Good luck!

Edit:

To dismiss the Game Center screen, in your GKGameCenterControllerDelegate add this method:

- (void)gameCenterViewControllerDidFinish:(GKGameCenterViewController *)gameCenterViewController {
    [gameCenterViewController dismissViewControllerAnimated:YES completion:^{

    }];
}