Close a modal view with a button in Swift?

Question

Learning some view controller basics and am stuck on how to dismiss a modal with a button.

In my slimmed-down example, I have a two view setup with the initial view and the modal. The first view has a button that successfully pops up the modal. On the modal, there is a button that should dismiss itself.

According to other posts and documentation, I should be able to run simple code attached to the button like this:

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    @IBAction func CloseModal(_ sender: Any) {
        self.dismiss(animated: true, completion: nil)
    }

}

When I tap the "Close Modal" button nothing happens. What am I missing here? Am I putting this code in the wrong place? Currently, it's in the main ViewController.swift file.

Answer 1

You actually have two ViewController screens, but it looks like you have one ViewController class? And is the 2nd screen connected to a class?

Must be in the class that belongs to the second screen of the closeModal method.

//This is First ViewController, OpenModal Button is here
class ViewController: UIViewController {

  override func viewDidLoad() {
     super.viewDidLoad()
  }

}


// The name of the class and the Viewcontroller in the storyboard have to be the same, and CloseModol Button and function need to be here 
class SecondViewController: UIViewController {

  override func viewDidLoad() {
     super.viewDidLoad()
  }

  @IBAction func CloseModal(_ sender: Any) {
     self.dismiss(animated: true, completion: nil)
  } 

}

Don't forget to set the name of the ViewController in Storyboad; from FirstViewController to SecondViewController