(Swift) Unwind segue when multiple view controllers lead to same view?

Question

I am trying to code a hangman game and am having trouble with unwind segues. I have multiple view controllers that all ultimately lead to the same view, where the user plays

Answer 1

If you have any custom logic and want to invoke the unwind segue programmatically to different view controllers, here is how:

1. Add unwindFromCViewController to both BViewController and DBViewController:

   BViewController.swift

   class BViewController : UIViewController {
       @IBAction func unwindFromCViewController(segue:UIStoryboardSegue) {
       }
   }
   

   DViewController.swift

   class DViewController : UIViewController {
       @IBAction func unwindFromCViewController(segue:UIStoryboardSegue) {
       }
   }
   

2. In your storyboard, create this segue and give it a identifier, and link it to the action you defined above unwindFromCViewController:

        

        

3. Invoke the unwind segue from code:

   self.performSegueWithIdentifier("unwindFromCViewControllerSugueId", sender: self)
   

With that, you can unwind to a previous view regardless where it is coming from.