Understanding resignFirstResponder with UITextField

I'm trying to get rid of the keyboard when the user touch outside my UITextField, by using this method:

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [mainTextController resignFirstResponder];
    [super touchesBegan:touches withEvent:event];
}

However, this seems to call a method that is called after pressing the return button on the keyboard, but I just want the keyboard to vanish, not to press return for me. How can I accomplish that?

Thanks!

EDIT: tGilani's answer is the most straight-forward way, works like a charm, without changing to UIControl. But I guess jonkroll's answer also works.