Linking up a button through a segue when using material.io - ios

Question

Im a beginner in swift and I am creating a login screen using Material.io in Swift and my UI looks like this .
However i dont see anything on my main.storyboard
I am used to creating a segue manually and then using
performSegue(withIdentifier: <#T##String#>, sender: <#T##Any?#>)
to use the segue but now since i dont see the button i'm unable to use the segue on clicking the 2 buttons Login and Register.
Also, usually from main.storyboard you have an IBOutlet or IBAction block to trigger certain features such as do something on a button click.
How does that work when you use MDCButton for instance. How do you link up the button to an action such as trigger a segue or update a text field.
Thank you.
I have declared my button like this
let nextButton: MDCButton = {
let nextButton = MDCButton()
let containerScheme = MDCContainerScheme()
nextButton.applyTextTheme(withScheme: containerScheme)
nextButton.setTitleColor(.white, for: .normal)
nextButton.translatesAutoresizingMaskIntoConstraints = false
nextButton.setTitle("CREATE NEW ACCOUNT", for: .normal)
nextButton.addTarget(self, action: #selector(didTapNext(sender:)), for: .touchUpInside)
return nextButton
}()
And i am calling it like this
#objc func didTapNext(sender: Any) {
self.performSegue(withIdentifier: "toRegistration", sender: self)
self.dismiss(animated: true, completion: nil)
}
I have a segue linking the 2 view controllers.

Answer 1

I can't see your code and don't have enough rep to comment, but it looks like you are building your view programmatically. To see when the button receives touchUp as you would from an outlet, you need to add a target. Try something like this:
func functionWhereYouCreateTheButton() { (PROBABLY YOUR VIEW DID LOAD)
let loginButton = UIButton()...
...
...
...
loginButton.addTarget(self, action: #selector(self.buttonTapped), for: .touchUpInside)
}
func buttonTapped() {
self.performSegue(withIdentifier: "SEGUEID", sender: self)
}