Dismiss multiple controllers

Question

How can I go back to several controllers back? The picture is an example

Answer 1

If you wanna back to root view controller you can use:

self.navigationController?.popToRootViewController(animated: true)

Another way if you want to come back not to root view controller.

In your current view controller:

guard let navigationController = self.navigationController else {return}
        for controller in navigationController.viewControllers {
            if let neededVC = controller as? SomeViewController {
                navigationController.popToViewController(neededVC, animated: true)
            }
        }

Answer 2

Assuming both viewcontrollers are in the same navigation stack you can use the navigationcontroller's function popToViewController(_:animated:).

navigationController?.popToViewController(theViewControllerInstanceYouWantToGetBackTo, animated: true)

https://developer.apple.com/documentation/uikit/uinavigationcontroller/1621871-poptoviewcontroller.

In your specific case you can also use popToRootViewController(animated:) since - according to your screenshot - you want to pop back to the navigationcontroller's initial viewcontroller.

https://developer.apple.com/documentation/uikit/uinavigationcontroller/1621855-poptorootviewcontroller

navigationController?.popToRootViewController(animated: true)

Answer 3

if you use segue then use 'Unwind segue'

for this write given code in your 'A view controller'

@IBAction func unwindToThisViewController(segue: UIStoryboardSegue) {



}

In B_viewcontroller, On press button call 'Unwind segue'. with self.performSegue(withIdentifier: "YourSegueForA_VeiwController", sender: nil)

With the help of Unwind segue you can send data also