MKMapView hides all controls on the view

I have added UIButton, UITextField and MKMapView in UIViewController. I bind all co开发者_JS百科ntrols to properties. But when I run application there is no button and textField, only map. I have navigation controller and I was thinking that it hides controls but no. Is there any additional option that must be set when adding more controls with MKMapView in one View?

And I forgot to tell. In UITextField I have hardcoded value ("London") and in set location on map I get value from that UITextField and it works. So field is somewhere on the screen but it seams that map hides it somehow.

But, if I in view editor make map smaller it somehow fine. But why I must make it so small in editor to be fine in run mode?

maybe you should bring your UIButton, UITextField with

[self.view bringSubviewToFront:UIView] 

to the front.