iPhone - dismiss multiple ViewControllers

Question

I have a long View Controllers hierarchy;

in the first View Controller I use this code:

SecondViewController *svc = [[SecondViewController alloc] i         


        

Answer 1

A swift version with some additions based on this comment

func dismissModalStack(viewController: UIViewController, animated: Bool, completionBlock: BasicBlock?) {
    if viewController.presentingViewController != nil {
        var vc = viewController.presentingViewController!
        while (vc.presentingViewController != nil) {
            vc = vc.presentingViewController!;
        }
        vc.dismissViewControllerAnimated(animated, completion: nil)

        if let c = completionBlock {
            c()
        }
    }
}