Swift dialog with textField inside

We want to use a textField inside a Dialog to get user input data.

Declare button, label

var la: UILabel!

var bu:UIButton!

Set position, name button as “Enter name”.

bu = UIButton(frame: CGRect(x:80, y: 530, width: 100, height: 32))

setbu(bu,"Enter name")

Set label text to orange color.

la = UILabel(frame: CGRect(x: 80, y: 500, width: 100, height: 25))

la.textColor = UIColor.orangeColor()

view.addSubview(bu)

view.addSubview(la)

Declare a function name  gettext.

func gettext(sender: UIButton){

let alert = UIAlertController(title: "Enter name", message: "", preferredStyle: .Alert)

                alert.addTextFieldWithConfigurationHandler({(te: UITextField!) in

                    te.placeholder = "Name"

                })

                alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: { (action: UIAlertAction) ->Voidin

let ten = alert.textFields

let ten2 = ten! as [UITextField]

let n = ten2[0].text

let s = n!.characters.count

if s <1 {

self.toast("You enter nothing!")

self.presentViewController(alert, animated: true, completion: nil)

                    }

else{

self.la.text=n!

                    }

                }))

      alert.addAction(UIAlertAction(title: "Cancel",

        style: UIAlertActionStyle.Cancel,

       handler:nil))

self.presentViewController(alert, animated: true, completion: nil)

}

We check if user type nothing, so toast, if t has text, set to label.

Set function to button in viewDidLoad.

bu.addTarget(self, action: #selector(ViewController.nhapchu(_:)), forControlEvents: UIControlEvents.TouchUpInside)

Run to see result.

Function use to create button like this.

func setbu(bun:UIButton,_ t: String){

let a=NSMutableAttributedString(string: t, attributes: [NSForegroundColorAttributeName: UIColor.blueColor(), NSFontAttributeName: UIFont(name: "Arial", size: 15.0)!])

        bun.setAttributedTitle(a, forState: .Normal)

        bun.backgroundColor = hex("#e6e6fa")

        bun.layer.cornerRadius = 16

        bun.layer.borderColor = hex("#6699cc").CGColor

        bun.layer.borderWidth = 1

    }

Func toast can see here.