Game Center Sandbox mode display multiple leaderboards - ios

Question

I'm preparing to launch my first app and want to have multiple leaderboards inside my game. Currently in sandbox mode I can track and log scores into Game Center successfully. Game Center saves my scores (only if it is higher) and seems to be fully functional.
I know through Itunes Connect we have the ability to set up multiple leaderboards and it seems pretty straight forward. I still want to be able to test multiple leaderboards before publishing my game though. Is there a way to do this in sandbox mode? Currently it seems like my scores are only automatically logged into a default leaderboard. Below is the relevant code I'm using to save/access scores. Thanks!
ABGameKitHelper.m
#pragma mark - Leaderboard
-(void) reportScore:(long long)aScore forLeaderboard:(NSString*)leaderboardId
{
GKScore *score = [[GKScore alloc] initWithCategory:leaderboardId];
score.value = aScore;
[score reportScoreWithCompletionHandler:^(NSError *error) {
if (!error)
{
if(![self hasConnectivity])
{
[self cacheScore:score];
}
if (ABGAMEKITHELPER_LOGGING) NSLog(#"ABGameKitHelper: Reported score (%lli) to %# successfully.", score.value, leaderboardId);
}
else
{
[self cacheScore:score];
if (ABGAMEKITHELPER_LOGGING) NSLog(#"ABGameKitHelper: ERROR -> Reporting score (%lli) to %# failed, caching...", score.value, leaderboardId);
}
}];
}
-(void) showLeaderboard:(NSString*)leaderboardId
{
GKLeaderboardViewController *viewController = [GKLeaderboardViewController new];
viewController.leaderboardDelegate = self;
if (leaderboardId)
{
viewController.category = leaderboardId;
CCLOG(#"Going to category already created");
}
[[self topViewController] presentViewController:viewController animated:YES completion:nil];
}
MainScene.m
- (void)gameCenter {
[[ABGameKitHelper sharedHelper] reportScore:1400 forLeaderboard:#"Score"];
[[ABGameKitHelper sharedHelper] showLeaderboard:#"Score"];
}

Answer 1

I'm not sure if I understand your question properly, but I'll try to answer! Game Center does support multiple leaderboards:
-If you want to send a score to specific leaderboard, you just have to call the function [[ABGameKitHelper sharedHelper] reportScore:X forLeaderboard:LEADERBOARD_ID];, where X represents the score you'd like to send, and LEADERBOARD_ID is the ID of the leaderboard you want to send the score to, as specified in iTunes Connect.
-When you have multiple leaderboards, if you don't want to show just one leaderboard, but a list of them all, you should use the GKGameCenterViewController class instead. However, be careful; this ViewController has been added in iOS 6 only, so you must check which version the device is running. I am also using the ABGameKitHelper, so I've made a function to show this kind of view. Here it goes :
ABGameKitHelper.m
- (void) showGameCenter{
if (![[ABGameKitHelper sharedHelper] hasConnectivity]) return;
//Check if device runs on iOS 5
if([[[UIDevice currentDevice]systemVersion]intValue]==5)
{
//If so, we must use the GKLeaderboardViewController
GKLeaderboardViewController *leaderboard = [[GKLeaderboardViewController alloc] init];
if (leaderboard != nil)
{
leaderboard.leaderboardDelegate = self;
[[self topViewController] presentViewController:leaderboard animated:YES completion:nil];
}
}else if ([[[UIDevice currentDevice]systemVersion]intValue]>=6)
{
//if it runs on iOS 6 or higher, we use GKGameCenterViewController
GKGameCenterViewController *gameCenterController = [[GKGameCenterViewController alloc] init];
if (gameCenterController != nil)
{
gameCenterController.gameCenterDelegate = self;
gameCenterController.viewState = GKGameCenterViewControllerStateDefault;
[[self topViewController] presentViewController:gameCenterController animated:YES completion:nil];
}
}
}
And don't forget to add :
- (void) gameCenterViewControllerDidFinish:(GKGameCenterViewController *)gameCenterViewController{
[gameCenterViewController dismissViewControllerAnimated:YES completion:nil];
}
Using this function will allow you to show a nice view containing all your leaderboards and achievements.
Hope this helps!