Qfyilyi

Here is a complete solution to add a UIButton programmatically with the targetAction.
Swift 2.2

override func viewDidLoad() {

  super.viewDidLoad()



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

  button.backgroundColor = .greenColor()

  button.setTitle("Test Button", forState: .Normal)

  button.addTarget(self, action: #selector(buttonAction), forControlEvents: .TouchUpInside)



  self.view.addSubview(button)

}



func buttonAction(sender: UIButton!) {

  print("Button tapped")

}

It is probably better to use NSLayoutConstraint rather than frame to correctly place the button for each iPhone screen.

Updated code to Swift 3.1:

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")

}

Updated code to Swift 4.2:

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)

}



@objc func buttonAction(sender: UIButton!) {

  print("Button tapped")

}

The above still works if func buttonAction is declared private or internal.

You can add UIButton,UIlable and UITextfield programmatically in this way.

UIButton code

// var button   = UIButton.buttonWithType(UIButtonType.System) as UIButton

let button = UIButton(type: .System) // let preferred over var here

button.frame = CGRectMake(100, 100, 100, 50)

button.backgroundColor = UIColor.greenColor()

button.setTitle("Button", forState: UIControlState.Normal)

button.addTarget(self, action: "Action:", forControlEvents: UIControlEvents.TouchUpInside)

self.view.addSubview(button)

UILabel Code

var label: UILabel = UILabel()

label.frame = CGRectMake(50, 50, 200, 21)

label.backgroundColor = UIColor.blackColor()

label.textColor = UIColor.whiteColor()

label.textAlignment = NSTextAlignment.Center

label.text = "test label"

self.view.addSubview(label)

UITextField code

var txtField: UITextField = UITextField()

txtField.frame = CGRectMake(50, 70, 200, 30)

txtField.backgroundColor = UIColor.grayColor()

self.view.addSubview(txtField)

Hope this is helpful for you.

For Swift 3

let button = UIButton()

button.frame = CGRect(x: self.view.frame.size.width - 60, y: 60, width: 50, height: 50)

button.backgroundColor = UIColor.red

button.setTitle("Name your Button ", for: .normal)

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

self.view.addSubview(button)



func buttonAction(sender: UIButton!) {

    print("Button tapped")

}

For Swift 4

 let button = UIButton()

 button.frame = CGRect(x: self.view.frame.size.width - 60, y: 60, width: 50, height: 50)

 button.backgroundColor = UIColor.red

 button.setTitle("Name your Button ", for: .normal)

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

 self.view.addSubview(button)



 @objc func buttonAction(sender: UIButton!) {

    print("Button tapped")

 }

Swift 3

let btn = UIButton(type: .custom) as UIButton

btn.backgroundColor = .blue

btn.setTitle("Button", for: .normal)

btn.frame = CGRect(x: 100, y: 100, width: 200, height: 100)

btn.addTarget(self, action: #selector(clickMe), for: .touchUpInside)

self.view.addSubview(btn)



func clickMe(sender:UIButton!) {

  print("Button Clicked")

}

Output

How to do this using Swift 3.0.

func createButton() {

    let button = UIButton(type: .system)

    button.frame = CGRect(x: 100.0, y: 100.0, width: 100.0, height: 100.0)

    button.setTitle(NSLocalizedString("Button", comment: "Button"), for: .normal)

    button.backgroundColor = .green

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

    view.addSubview(button)

}



@objc func buttonAction(sender: UIButton) {

    print("Button pushed")

}

 var sampleButton:UIButton?



 override func viewDidLoad() {

  super.viewDidLoad()



 }

 override func viewDidAppear(animated: Bool) {



  sampleButton = UIButton(type: .RoundedRect)

  //sampleButton.frame = CGRect(x:50, y:500, width:70, height:50)



  sampleButton!.setTitle("Sample n UI Button", forState: .Normal)

  sampleButton!.titleLabel?.lineBreakMode = .ByWordWrapping

  sampleButton!.titleLabel?.textAlignment = .Center

  sampleButton!.setTitleColor(UIColor.whiteColor(), forState: .Normal)

  sampleButton!.layer.cornerRadius = 6

  sampleButton!.backgroundColor = UIColor.redColor().colorWithAlphaComponent(0.6)

  sampleButton?.tintColor =  UIColor.brownColor()





  //Add padding around text

  sampleButton!.titleEdgeInsets = UIEdgeInsetsMake(-10,-10,-10,-10)

  sampleButton!.contentEdgeInsets = UIEdgeInsetsMake(5,5,5,5)



  //Action set up

  sampleButton!.addTarget(self, action: "sampleButtonClicked", forControlEvents: .TouchUpInside)

  self.view.addSubview(sampleButton!)





  //Button Constraints:

  sampleButton!.translatesAutoresizingMaskIntoConstraints = false



  //To anchor above the tab bar on the bottom of the screen:

  let bottomButtonConstraint = sampleButton!.bottomAnchor.constraintEqualToAnchor(bottomLayoutGuide.topAnchor, constant: -20)



  //edge of the screen in InterfaceBuilder:

  let margins = view.layoutMarginsGuide

  let leadingButtonConstraint = sampleButton!.leadingAnchor.constraintEqualToAnchor(margins.leadingAnchor)



  bottomButtonConstraint.active = true

  leadingButtonConstraint.active = true





 }

 func sampleButtonClicked(){



  print("sample Button Clicked")



 }

The API hasn't changed - only the syntax has. You can make a UIButton and add it like this:

var button = UIButton(frame: CGRectMake(0, 0, 50, 50))

self.view.addSubview(button) // assuming you're in a view controller

Add this code in viewDidLoad

//add Button

            var button=UIButton(frame: CGRectMake(150, 240, 75, 30))

            button.setTitle("Next", forState: UIControlState.Normal)

            button.addTarget(self, action: "buttonTapAction:", forControlEvents: UIControlEvents.TouchUpInside)

            button.backgroundColor = UIColor.greenColor()

            self.view.addSubview(button)

Write this function outside it,this will call when you tap on the button

func buttonTapAction(sender:UIButton!)

{

    println("Button is working")

}

In Swift 2 and iOS 9.2.1

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

self.button.frame = CGRectMake(130, 70, 60, 20)

self.button.setTitle("custom button", forState: UIControlState.Normal)

self.button.addTarget(self, action:"buttonActionFuncName", forControlEvents: UIControlEvents.TouchUpInside)

self.button.setTitleColor(UIColor.blackColor(), forState: .Normal)

self.button.layer.borderColor = UIColor.blackColor().CGColor

self.button.titleLabel?.font = UIFont(name: "Helvetica-Bold", size: 13)

self.view.addSubview(self.button)

You can create like this and you can add action also like this....

import UIKit



let myButton = UIButton(frame: CGRect(x: 0, y: 0, width: 50, height: 50))



init(nibName nibNameOrNil: String!, bundle nibBundleOrNil: NSBundle!)

{       super.init(nibName: nibName, bundle: nibBundle) 

        myButton.targetForAction("tappedButton:", withSender: self)

}



func tappedButton(sender: UIButton!)

{ 

     println("tapped button")

}

It is possible. You do everything pretty much the same way except use the swift syntax. For example you could make a UIButton in code like this:

 var button: UIButton = UIButton(frame: CGRectMake(0, 0, 100, 100))

For create UIButton from storyboard:
1 - Drag UIButton object from Object Library to ViewController in storyboard file
2 - Show Assistant editor
3 - Drag with right click from UIButton create above into your class. The result is the following:

@IBAction func buttonActionFromStoryboard(sender: UIButton)

{

    println("Button Action From Storyboard")

}

For create UIButton programmatically:
1- Write into "override func viewDidLoad()":

        let uiButton    = UIButton.buttonWithType(UIButtonType.System) as UIButton

        uiButton.frame  = CGRectMake(16, 116, 288, 30)

        uiButton.setTitle("Second", forState: UIControlState.Normal);

        uiButton.addTarget(self, action: "buttonActionFromCode:", forControlEvents: UIControlEvents.TouchUpInside)

        self.view.addSubview(uiButton)

2- add the IBAction func:

@IBAction func buttonActionFromCode(sender:UIButton)

{

    println("Button Action From Code")

}

            let myFirstButton = UIButton()

            myFirstButton.setTitle("Software Button", forState: .Normal)

            myFirstButton.setTitleColor(UIColor.redColor(), forState: .Normal)

            myFirstButton.frame = CGRectMake(100, 300, 150, 50)

            myFirstButton.backgroundColor = UIColor.purpleColor()

            myFirstButton.layer.cornerRadius = 14

            myFirstButton.addTarget(self, action: "pressed:", forControlEvents: .TouchUpInside)

            self.view.addSubview(myFirstButton)

            myFirstButton.hidden=true

            nameText.delegate = self





func pressed(sender: UIButton!) {

        var alertView = UIAlertView()

        alertView.addButtonWithTitle("Ok")

        alertView.title = "title"

        alertView.message = "message"

        alertView.show();

    }

Yeah in simulator. Some times it wont recognise the selector there is a bug it seems. Even i faced not for your code , then i just changed the action name (selector). It works

let buttonPuzzle:UIButton = UIButton(frame: CGRectMake(100, 400, 100, 50))

buttonPuzzle.backgroundColor = UIColor.greenColor()

buttonPuzzle.setTitle("Puzzle", forState: UIControlState.Normal)

buttonPuzzle.addTarget(self, action: "buttonAction:", forControlEvents: UIControlEvents.TouchUpInside)

buttonPuzzle.tag = 22;

self.view.addSubview(buttonPuzzle)

Selector Function is Here:

func buttonAction(sender:UIButton!)

{



    var btnsendtag:UIButton = sender

    if btnsendtag.tag == 22 {            

        //println("Button tapped tag 22")

    }

}

This works for me very well, #DynamicButtonEvent #IOS #Swift #Xcode

func setupButtonMap(){

    let mapButton = UIButton(type: .system)

    mapButton.setImage(#imageLiteral(resourceName: "CreateTrip").withRenderingMode(.alwaysOriginal), for: .normal)

    mapButton.frame = CGRect(x: 0, y: 0, width: 34, height: 34)

    mapButton.contentMode = .scaleAspectFit

    mapButton.backgroundColor = UIColor.clear

    mapButton.addTarget(self, action: #selector(ViewController.btnOpenMap(_:)), for: .touchUpInside)

    navigationItem.leftBarButtonItem = UIBarButtonItem(customView: mapButton)

    }

@IBAction func btnOpenMap(_ sender: Any?) {

    print("Successful")

}

Swift: Ui Button create programmatically

let myButton = UIButton()



myButton.titleLabel!.frame = CGRectMake(15, 54, 300, 500)

myButton.titleLabel!.text = "Button Label"

myButton.titleLabel!.textColor = UIColor.redColor()

myButton.titleLabel!.textAlignment = .Center

self.view.addSubview(myButton)

Uilabel code 



var label: UILabel = UILabel()

label.frame = CGRectMake(50, 50, 200, 21)

label.backgroundColor = UIColor.blackColor()

label.textColor = UIColor.whiteColor()

label.textAlignment = NSTextAlignment.Center

label.text = "test label"

self.view.addSubview(label)

    // UILabel:

    let label = UILabel()

    label.frame = CGRectMake(35, 100, 250, 30)

    label.textColor = UIColor.blackColor()

    label.textAlignment = NSTextAlignment.Center

    label.text = "Hello World"

    self.view.addSubview(label)



    // UIButton:

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

    btn.frame = CGRectMake(130, 70, 60, 20)

    btn.setTitle("Click", forState: UIControlState.Normal)

    btn.setTitleColor(UIColor.blackColor(), forState: .Normal)

    btn.addTarget(self, action:Selector("clickAction"), forControlEvents: UIControlEvents.TouchUpInside)

    view.addSubview(btn)





    // Button Action:

    @IBAction func clickAction(sender:AnyObject)

    {

        print("Click Action")

    }

Step 1: Make a new project

Step 2: in ViewController.swift

import UIKit



class ViewController: UIViewController {



    override func viewDidLoad() {

        super.viewDidLoad()



        // CODE

        let btn = UIButton(type: UIButtonType.System) as UIButton        

        btn.backgroundColor = UIColor.blueColor()

        btn.setTitle("CALL TPT AGENT", forState: UIControlState.Normal)

        btn.frame = CGRectMake(100, 100, 200, 100)

        btn.addTarget(self, action: "clickMe:", forControlEvents: UIControlEvents.TouchUpInside)

        self.view.addSubview(btn)



    }



    func clickMe(sender:UIButton!) {

      print("CALL")

    }



    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }





}

 func viewDidLoad(){

                    saveActionButton = UIButton(frame: CGRect(x: self.view.frame.size.width - 60, y: 0, width: 50, height: 50))

                    self.saveActionButton.backgroundColor = UIColor(red: 76/255, green: 217/255, blue: 100/255, alpha: 0.7)

                    saveActionButton.addTarget(self, action: #selector(doneAction), for: .touchUpInside)

                    self.saveActionButton.setTitle("Done", for: .normal)

                    self.saveActionButton.layer.cornerRadius = self.saveActionButton.frame.size.width / 2

                    self.saveActionButton.layer.borderColor = UIColor.darkGray.cgColor

                    self.saveActionButton.layer.borderWidth = 1

                    self.saveActionButton.center.y = self.view.frame.size.height - 80

                    self.view.addSubview(saveActionButton)

        }



          func doneAction(){

          print("Write your own logic")

         }

override func viewDidLoad() {



super.viewDidLoad()

    // Do any additional setup after loading the view, typically from a nib.



    var imageView = UIImageView(frame: CGRectMake(100, 150, 150, 150));

    var image = UIImage(named: "BattleMapSplashScreen.png");

    imageView.image = image;

    self.view.addSubview(imageView);



}