Make spinner Swift

Swift use picker to show a list of item for user choose, it look simple.

We want to make it like Android spinner.

Declare a button, when clicked, it show a list of year, if user choose a row, set result to label.

var la: UILabel!

var bu:UIButton!

Declare an array.

let data=["2000","2001","2002","2003","2004","2005","2006","2007","2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023"]

Set position to button, label.

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

setbu(bu,"Choose year")

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

view.addSubview(bu)

view.addSubview(la)

This is function to make button.

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

    }

This is function to make list.

func spinner(sender: UIButton){

let alert = UIAlertController(title: "Choose year", message: "", preferredStyle: .Alert)

for i in 0..<data.count {

            alert.addAction(UIAlertAction(title: String(data[i]), style: UIAlertActionStyle.Default, handler: { (action: UIAlertAction) ->Voidin

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

self.bu.setAttributedTitle(a, forState: .Normal)

let h=String(self.data[i])

self.la.text=h

self.la.textColor = UIColor.blueColor()

            }))

        }

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

            style: UIAlertActionStyle.Cancel,

            handler:nil))

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

    }

Set function to button in viewDidLoad

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

Run to see result.