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iOS Introduction to Auto Layout in iOS Auto Layout in Code Setting Up the Orange View

Posted by Shaurya Grover
Shaurya Grover
15,815 Points

IBActions on CodeLayout

how do i make IBActions on a button i made in code

3 Answers

Shaurya Grover
Shaurya Grover
15,815 Points

thanks bro

Shaurya Grover
Shaurya Grover
15,815 Points

but how do i do than on an instance of UIButton

Arman Arutyunov
Arman Arutyunov
21,900 Points
Arman Arutyunov
Arman Arutyunov
21,900 Points

What do you mean? My example is actually dealing with a UIButton instance.

See the first line. I instantiate UIButton to the "button" constant:

let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))

And then I "addTarget" to that constant with a selector on a method I want to be called when the button is tapped:

button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)

And that is a method I specified in the addTarget method which will be called every time the button is tapped (just like an IBAction)

func buttonAction(sender: UIButton!) {
  print("Button tapped")
}
Arman Arutyunov
Arman Arutyunov
21,900 Points
Arman Arutyunov
Arman Arutyunov
21,900 Points

If it helped you could mark my answer as correct so other students can see it and not ask the same question in the future

Arman Arutyunov
Arman Arutyunov
21,900 Points
Arman Arutyunov
Arman Arutyunov
21,900 Points

You don't make IBActions on button you create programmatically. The way you do it is by addTarget method.

That's an example

override func viewDidLoad() {
  super.viewDidLoad()

  let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
  button.backgroundColor = .green
  button.setTitle("Test Button", for: .normal)
  button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)

  self.view.addSubview(button)
}

func buttonAction(sender: UIButton!) {
  print("Button tapped")
}

buttonAction() is your IBAction analogue. You can name it anyway you want, of course.

Hope it helps!

Shaurya Grover
Shaurya Grover
15,815 Points
Shaurya Grover
Shaurya Grover
15,815 Points

no