title: View is null in viewDidLoad
body: <p>I created <code>UITabBarController</code> with each tab contain <code>UINavigationController</code> and set rootviewcontroller in this <code>UINavigationController</code>, all of this is done in interface builder. In viewDidLoad I try to get frame size from view, but when I reference view it return null. Have anyone experienced this before. </p>
  
  <p>All IBoutlet are properly  connected.</p>