How to use UISwitch control in Swift

October 8, 2017

This is UISwitch example when you build iOS applications

Fist I am going to create sigleview application and add UILable, UISwitch into the ViewController as shown in the following image

Next you can connect UISwitch and UILable with ViewController.swift with IBAction and IBOutlet

 

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var labelState: UILabel!
    @IBAction func switchValueChanged(_ sender: UISwitch) {
        if(sender.isOn){
            labelState.text = "Switch is ON"
        }else{
            labelState.text = "Switch is OFF" 
        }
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

You have the switchValueChanged() function to get the status of the UISwitch control. When the value of the switch is changed this function will be called