CODEWITHSUNDEEP
iosswiftsegueviewcontrollerdismiss
Poli97
Poli97

Reputation: 304

Close a viewcontroller after a segue

What I want is to close a viewController after performing a segue so that the back button of the navigation controller on the new view doesn't go back to the view that I just closed, but it goes to the view that precedes it in the storyboard like it is the first time that it is loaded.

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I already tried stuff like dismiss and so but it doesn't really work for me as it only closes the view in which the button that I pressed for performing the function is located :

@objc func goToList(){
   self.dismiss(animated: true, completion: nil)
   performSegue(withIdentifier: "goToList", sender: nil)
}

Upvotes: 3

Views: 2251

Answers (2)

flanker
flanker

Reputation: 4200

The navigation controller maintains a stack (array) of ViewControllers that have been opened (pushed). It also has the ability to pop these ViewControllers off the stack until it gets to a specific one.

For example, if you wished to return to a previous view controller of type MyInitialVC then you'd want to search through the stack until you found that type of VC, and then pop to it:

let targetVC = navigationController?.viewControllers.first(where: {$0 is MyInitialVC})
if let targetVC = targetVC {
   navigationController?.popToViewController(targetVC, animated: true)
}

NB. written from memory without XCode, so you may need to correct minor typos

Upvotes: 3

Arash Etemad
Arash Etemad

Reputation: 1909

You can use unwind segue to get back to each viewController that you want.
Read more here:
Unwind Segues Step-by-Step (and 4 Reasons to Use Them)

Upvotes: 0

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