UINavigationController setViewController:animated: navigation bar difficulties

I faced the same problem, it seems that Apple haven't corrected that bug and as a result the selected answer of this thread appears to be incorrect. I managed to correct this problem using this bug report as in the comment of Anurag combined with the comment of Scott Pfeil.

Here is the code :

navController.navigationBarHidden = YES;

NSArray* viewControllers =  navController.viewControllers;
UIViewController* currentController = [viewControllers objectAtIndex:viewControllers.count-1];

NSArray *controllers = [NSArray arrayWithObjects: viewController , currentController , nil];

[navController setViewControllers:controllers animated:NO];

navController.navigationBarHidden = NO;

I call this code in the viewDidLoad of the currentController and what I did is replace the previous controllers with only viewController.

Hope this helps.

Apple appears to have fixed this in the newest SDK