Iphone: UIButton with rounded corner

-(void)setButtonStyling:(UIButton *)button

{

    CALayer *layer = [button layer];

    [layer setCornerRadius:5.0f];

    [layer setMasksToBounds:YES];

    [layer setBorderWidth:1.0f];

    [layer setBorderColor:[[UIColor colorWithWhite:0.4f alpha:0.2f] CGColor]];

}

//setting and calling the function

 [self setButtonStyling:self.myButton];