how to close all view controllers that presented modally inFront of each other with unwind segue in swift?

Question

so I have a main view controller that the view controllers will present inFront of each other and I want when user click the button in the last view controller close all of the presented modally view controllers so I used this code But I didn't get the result

let destination = matchViewController()
let appDelegate:UIApplicationDelegate = UIApplication.shared.delegate!
let initialViewController = destination
let navigationController = UINavigationController(rootViewController: initialViewController)
appDelegate.window??.rootViewController = navigationController
appDelegate.window??.makeKeyAndVisible()

I want to use unwind segue to exit But there is another problem too the last view controller will present many times in many different situations so I just to dismiss all presented modally view controllers in. this situation I rather not using the navigationController But if I had to use it pleas tell me where exactly should I use that ?

score 0 · Answer 1 · answered Dec 30 '18 at 06:44

0

Two options:

Dismiss all view controllers on the root view controller

self.view.window?.rootViewController?.dismiss(animated: true, completion: nil)

Dismiss all viewControllers until it has a presentingController

func dismissAllControllers() {

    guard let vc = self.presentingViewController else { return }

    while (vc.presentingViewController != nil) {
        vc.dismiss(animated: true, completion: nil)
    }
}

answered Dec 30 '18 at 06:44

Bappaditya

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the Dismiss all viewControllers until it has a presentingController how this work? – Saeed Rahmatolahi Dec 30 '18 at 07:20
You need to call this on last view controller button action – Bappaditya Dec 30 '18 at 07:21
ok there is a problem there some view controllers in main page and before that and I don't want to dismiss them too I just want to dismiss view controllers until showing mainViewController – Saeed Rahmatolahi Dec 30 '18 at 07:25
you can add a check on `mainViewController` in while loop – Bappaditya Dec 30 '18 at 07:51
I can't do that the Xcode won't allow me to do that – Saeed Rahmatolahi Dec 30 '18 at 08:07

how to close all view controllers that presented modally inFront of each other with unwind segue in swift?

1 Answers1