simple button

Hi, I am trying to add a simple button programatically and it is not showing up.
What is wrong with it ?

#import "xyzViewController.h"

@interface xyzViewController ()

@end

@implementation xyzViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
    
    CGRect buttonFrame = CGRectMake(60, 60, 200,80);
    
    
    UIButton *button = [[UIButton alloc] initWithFrame:buttonFrame];
    button.layer.borderColor = [UIColor redColor].CGColor;
    
    [self.view addSubview:button];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}



    

@end

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.h file:

#import <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>

@interface xyzViewController : UIViewController

@end
 

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I am testing it on IO6 iPhone/ipad simulator