Cocos2d、iOS 6.1、GameCenter 在显示排行榜时崩溃

Question

我正在尝试在我的 Cocos2d 游戏中显示排行榜。下面的代码在 iOS 5.0 上可以正常工作。但是在 6.1 上它会崩溃并显示以下错误消息。在此先感谢您的任何建议。

* 由于未捕获的异常“UIViewControllerHierarchyInconsistency”而终止应用程序，原因：“一个视图一次最多只能与一个视图控制器关联！视图 > 与 关联。在将此视图与 关联之前清除此关联。'

- (void)showLeaderboard:(id)sender
{
GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init];
if (leaderboardController != NULL)
{

    leaderboardViewController = [[UIViewController alloc] init];
    leaderboardController.category = self.currentLeaderBoard;
    leaderboardController.leaderboardDelegate = self;

    [leaderboardViewController setView:[[CCDirector sharedDirector] openGLView]];
    [leaderboardViewController presentViewController:leaderboardController animated:YES completion:nil];

}
}

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

Answer 1

尝试停止 openGL 动画并恢复。

-(void)showLeaderboard
{
        [[CCDirector sharedDirector] stopAnimation];

         GKLeaderboardViewController *leaderboardViewController = [[[GKLeaderboardViewController alloc] init] autorelease];
         leaderboardViewController.leaderboardDelegate = self;

         AppController *app=(AppController*)[UIApplication sharedApplication].delegate;
         [app.navController presentModalViewController:leaderboardViewController animated:YES];
}


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

    [[CCDirector sharedDirector] startAnimation];
}