iphone - Game Center Leaderboards with cocos2d Cause Unresponsive App

Question

OK, so I'm trying to show Apple Game Center Leaderboards called from within my cocos2d game.

I've had some trouble doing so.

I did eventually stumble upon this and I implemented the following in one of my CCScene classes (I slightly modified the original code to prevent a compiler warning).

- (void)showLeaderboardForCategory:(NSString *)category
{
    // Create leaderboard view with default Game Center style
    leaderboardController = [[GKLeaderboardViewController alloc] init];

    // If view controller was successfully created...
    if (leaderboardController != nil)
    {
        // Leaderboard config
        leaderboardController.leaderboardDelegate = self; // leaderboardController will send messages to this object
        leaderboardController.category = category;
        leaderboardController.timeScope = GKLeaderboardTimeScopeAllTime;

        // Create an additional UIViewController to attach the GKLeaderboardViewController to
        vc = [[UIViewController alloc] init];

        // Add the temporary UIViewController to the main view
        [[CCDirector sharedDirector].view.window addSubview:vc.view];

        // Tell UIViewController to present the leaderboard
        [vc presentModalViewController:leaderboardController animated:YES];
    }
}

- (void)leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController
{
    [vc dismissViewControllerAnimated:YES completion:nil];
}

And, it works! At least when I call it, it does display the Leaderboard properly.

The only problem is, when I tap "Done" on the Leaderboard and the modal view dismisses, my CCScene no longer responds to tap events.

What do I need to do to regain responsiveness?

Answer 1

参考示例普通 cocos2d 项目：

     -(void)showLeaderboard
      {
        GKLeaderboardViewController *leaderboardViewController = [[GKLeaderboardViewController alloc] init];
        leaderboardViewController.leaderboardDelegate = self;
        AppController *app = (AppController*) [[UIApplication sharedApplication] delegate];
        [[app navController] presentModalViewController:leaderboardViewController animated:YES];
        [leaderboardViewController release];
     }

代理功能：

-(void) leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController
{
    AppController *app = (AppController*) [[UIApplication sharedApplication] delegate];
    [[app navController] dismissModalViewControllerAnimated:YES];
}