title: How to add another subview to a NavigationController view
body: <p>I have a window and add a navigation controller's view to it, all I want is for the navigation controller's view to take half of the window (top half) and want to add another view to bottom half. I'm trying to set the frame for navigation controller's view, but 0,0 is the topmost point on screen (doesn't count the iPhone's status bar). I can find (hopefully) an API to give me the size of the status bar, but I suspect there is a more civilised way of doing this. any help appreciated.</p>