// Create a Button
UIButton *myButton = [[UIButton buttonWithType: UIButtonTypeRoundedRect];

// To be notified when a button changes state, add a target and action:
[myButton addTarget:self action: @selector(buttonClick:) forControlEvents:UIControlEvent TouchUpInside];

// To create a button with a image





-(void)buttonDown:(id)sender
{
	NSLog(@"Button pushed down");
}

-(void)buttonRelease:(id)sender
{
	NSLog(@"Button released");
}

-(void)checkboxClick:(UIButton *)btn
{
	btn.selected = !btn.selected;
}

- (void)viewDidLoad {
	
    [super viewDidLoad];
	
	//rounded-rect button
	UIButton *roundedRectButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
	
	CGRect buttonRect = CGRectMake(100,50,100,35);
	[roundedRectButton setFrame:buttonRect];
	
	[roundedRectButton setTitle:@"Normal" forState:UIControlStateNormal];
	[roundedRectButton setTitle:@"Highlighted" forState:UIControlStateHighlighted];
	roundedRectButton.showsTouchWhenHighlighted = YES;
	
    [roundedRectButton addTarget:self action:@selector(buttonDown:) forControlEvents:UIControlEventTouchDown];
    [roundedRectButton addTarget:self action:@selector(buttonRelease:) forControlEvents:UIControlEventTouchUpInside];
	
	//checkbox control
	UIButton *checkbox = [UIButton buttonWithType:UIButtonTypeCustom];
	
	CGRect checkboxRect = CGRectMake(135,150,36,36);
	[checkbox setFrame:checkboxRect];
	
	[checkbox setImage:[UIImage imageNamed:@"checkbox_off.png"] forState:UIControlStateNormal];
	[checkbox setImage:[UIImage imageNamed:@"checkbox_on.png"] forState:UIControlStateSelected];
	
    [checkbox addTarget:self action:@selector(checkboxClick:) forControlEvents:UIControlEventTouchUpInside];
	
	//custom circular button
	UIButton *circularButton = [UIButton buttonWithType:UIButtonTypeCustom];
	
	CGRect circularRect = CGRectMake(80,220,165,164);
	[circularButton setFrame:circularRect];
	
	UIImage *buttonImage = [UIImage imageNamed:@"circular_button.png"];
	[circularButton setImage:buttonImage forState:UIControlStateNormal];
	
    [circularButton addTarget:self action:@selector(buttonDown:) forControlEvents:UIControlEventTouchUpInside];

	//add all the buttons to the main view
	[self.view addSubview:roundedRectButton];	
	[self.view addSubview:checkbox];	
	[self.view addSubview:circularButton];
}

Create a UIButton programatically

Create a UIButton programatically

ios

Objective C