Having difficulty bypassing view controller in stack when pushing view controller in iOS

Question

I am working on an app where I have three view controllers in sequence, ViewControllerA, ViewControllerB, and ViewControllerC. Under certain circumstances, I need the user to go from ViewControllerA directly to ViewControllerC, but unfortunately, in doing so, during the transition to ViewControllerC, ViewControllerB briefly appears on screen, which I do not want.

Here is the code that I am working with:

Inside VCA:

ViewControllerB *vcB = [ViewControllerB new];
    ViewControllerC *vcC = [ViewControllerC new];
    vcB.rootViewController = self;
    [self.navigationController pushViewController:vcB animated:NO];
    [self.navigationController pushViewController:vcC animated:YES];

As I mentioned above, the above code is happening inside ViewControllerA, and I am able to get to ViewControllerC, the problem is that unfortunately, ViewControllerB is displayed momentarily during the transition. What is it I am doing wrong, what I need to do to fix this?

Answer 1

Simple. Here's some nearly-correct-pseudocode

NSMutableArray *vcStack = [NSMutableArray arrayWithArray:self.navigationController.viewControllers];
[vcStack addObject:vcB];
[vcStack addObject:vcC];
[self.navigationController setViewControllers:vcStack animated:YES];

Obviously if you don't want the existing view stack, you can just throw it away and make your own array, however that will probably cause glitches with the animation.

Check out the docs for UINavigationController for more info: https://developer.apple.com/library/ios/documentation/Uikit/reference/UINavigationController_Class/index.html#//apple_ref/occ/instm/UINavigationController/setViewControllers:animated: