How to create action for UIButton and conner Radius in swift 5

Question

create login button( set title and conner Radius on UI button)

 lazy var loginButton: UIButton = {
    let button = UIButton()
    button.setTitle("Log In", for: .normal)
    button.layer.cornerRadius = 15
    button.backgroundColor = UIColor.red
 
    
    return button
}()

Does this answer your question? [How to add action for UIButton](https://stackoverflow.com/questions/8341543/how-to-add-action-for-uibutton) — lazarevzubov, Aug 22 '22 at 05:12
"here is my way to just create uibutton only" Except that the code _you've_ shown wouldn't even compile. — matt, Aug 23 '22 at 12:24

score 1 · Accepted Answer · answered Aug 23 '22 at 12:19

The modern way is to add the action as a UIAction.

lazy var test: UIButton = {
    let test = UIButton()
    test.translatesAutoresizingMaskIntoConstraints = false
    test.setTitle("See More Answers", for: .normal)
    test.setTitleColor(.systemBlue, for: .normal)
    let action = UIAction { action in
        print("howdy!")
    }
    test.addAction(action, for: .touchUpInside)
    return test
}()

Nicer syntax can be achieved through an extension, as I demonstrate here.

score -2 · Answer 2 · answered Aug 22 '22 at 05:07

-2

@objc func buttonAction() {
    print("Button Tapped")
}

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

answered Aug 22 '22 at 05:07

JJHA

76
7

Saurabh Pathak · Answer 3 · 2022-08-23T12:17:02.470

I have given the example for create the custom button and the custom label and set constraint in coding. The below code also contains the programmatically button action.

import UIKit

class ViewController: UIViewController {
    let button = UIButton(frame: CGRect(x: 100,y: 400,width: 200,height: 60))
    var label = UILabel(frame: CGRect(x: 100, y: 200, width: 200, height: 60))
    var count : Int = 0

    override func viewDidLoad() {
        super.viewDidLoad()
        
        button.setTitle("Click Button",for: .normal)
        button.backgroundColor = UIColor.blue
        button.setTitleColor(.white, for: .normal)
        button.addTarget(self,action: #selector(buttonAction),for: .touchUpInside)
        
        label.font = .systemFont(ofSize: 50)
        label.backgroundColor = UIColor.gray
        label.textAlignment = .center
        
        self.view.addSubview(button)
        self.view.addSubview(label)
    }

    @objc
    func buttonAction() {
        self.count += 1
        self.label.text = "\(count)"
    }
    
}

Output :-

Value of label increases when the button is click.

How to create action for UIButton and conner Radius in swift 5

create login button( set title and conner Radius on UI button)

3 Answers3

Output :-