Swift add show action to button programmatically

Question

how can I add action to button programmatically. I need to add show action to buttons in mapView. thanks

let button = UIButton(type: UIButtonType.Custom) as UIButton 

Answer 1

You can go for below code
`

let btn: UIButton = UIButton(frame: CGRect(x: 100, y: 400, width: 100, height: 50)) btn.backgroundColor = UIColor.green btn.setTitle("Click Me", for: .normal) btn.addTarget(self, action: #selector(buttonAction), for: .touchUpInside) btn.tag = 1 self.view.addSubview(btn)  

for action

 @objc func buttonAction(sender: UIButton!) {         let btnsendtag: UIButton = sender         if btnsendtag.tag == 1 {              dismiss(animated: true, completion: nil)         }     } 

Answer 2

  let button = UIButton(type: UIButtonType.Custom) as UIButton   button.addTarget(self, action: "action:", forControlEvents: UIControlEvents.TouchUpInside)    //then make a action method :    func action(sender:UIButton!) {      print("Button Clicked")   }