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

Question

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?

Answer 1

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.

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