How do I create a segue that can be called from a button that is created programmatically?

24
votes

In Swift I have a button created programmaticaly using:

var button = UIBarButtonItem(title: "Tableau", style: .Plain, target: self, action: "tabBarTableauClicked")

I want that when the user clicks the button it changes viewControllers. Here is the code for tabBarTableauClicked:

func tabBarTableauClicked(){
    performSegueWithIdentifier("tableau", sender: self)
}

But it is obviously not working because there is no segue with an identifier called "tableau".

And I can't create a segue using Ctrl + click the button and drag to the second viewController because the button is created programatically and not in the Storyboard.

How can I create a segue with an identifier programmatically in Swift?

1
swiftsegueuistoryboarduistoryboardsegue
Segues can't be created outside of the storyboard. stackoverflow.com/questions/9674685/… – user3746428
Are your first and second view controllers in the storyboard? – vacawama
Yes they are but the button is not – Clément Bisaillon
As long as you have both viewcontrollers in storyboard then you can create segues there and fire them programmatically. You don't need a button in the storyboard to fire a segue, having the viewcontroller which that button resides in is enough! – Honey

1 Answers

88
votes

Here is how to set up a segue so that it can be called programmatically.

  • Control drag from the ViewController icon in the first view controller to the second view controller.
  • Click on the segue arrow between the two view controllers, and in the Attributes Inspector on the right, give the segue an Identifier (tableau in your case).
  • Then you can trigger the segue with performSegueWithIdentifier in your code.

enter image description here

You can read more about setting up and using segues here.