Using iOS Switches

A switch is used to toggle between on and off states.

Important properties

• onImage
• offImage
• on

Important methods

- (void)setOn:(BOOL)on animated:(BOOL)animated

Add the custom method addSwitch and the switch

-(IBAction)switched:(id)sender{
    NSLog(@"Switch current state %@", mySwitch.on ? @"On" : @"Off");
}
-(void)addSwitch{
    mySwitch = [[UISwitch alloc] init];
    [self.view addSubview:mySwitch];
    mySwitch.center = CGPointMake(150, 200);
    [mySwitch addTarget:self action:@selector(switched:)
    forControlEvents:UIControlEventValueChanged];    
}

Modify viewDidLoad in ViewController.m as follows

(void)viewDidLoad
{
   [super viewDidLoad];
   [self addSwitch];
}

Output

Now when we run the application, we will see the following output

Slide the switch to the right, and the output is as shown below

Other extensions