iOS programmatically create UISwitch

UISwitch is a view that is lets the user select a YES or NO much like a checkbox. You can set the initial state of the Switch and with the help of the target action for a change event you can find out if the current state of the switch is ON or OFF.

Interface file for the view controller - MySwitchViewController.h

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#import <UIKit/UIKit.h>   @interface MySwitchViewController : UIViewController   @property (nonatomic, strong) UISwitch *mySwitch;   @end

Implementation file for the view controller - MySwitchViewController.m

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#import "MySwitchViewController.h"   @interface MySwitchViewController ()   @end   @implementation MySwitchViewController   @synthesize mySwitch;   - (void)viewDidLoad {     [super viewDidLoad];  // Do any additional setup after loading the view, typically from a nib.           //set the view background to white     self.view.backgroundColor = [UIColor whiteColor];           //frame for the switch     CGRect myFrame = CGRectMake(10.0f, 10.0f, 250.0f, 25.0f);     //create and initialize the slider     self.mySwitch = [[UISwitch alloc] initWithFrame:myFrame];     //set the switch to ON     [self.mySwitch setOn:YES];     //attach action method to the switch when the value changes     [self.mySwitch addTarget:self                 action:@selector(switchIsChanged:)                 forControlEvents:UIControlEventValueChanged];           [self.view addSubview:self.mySwitch]; }   //check if the switch is currently ON or OFF - (void) switchIsChanged:(UISwitch *)paramSender{           if ([paramSender isOn]){         NSLog(@"The switch is turned on.");     } else {         NSLog(@"The switch is turned off.");     }       }   - (void)didReceiveMemoryWarning {     [super didReceiveMemoryWarning];     // Dispose of any resources that can be recreated. }   @end

Reference

• UISwitch Class Reference