Interface Builder - Accurate Layout

I am working on a GUI in Interface Builder for an iPhone app.

In my view controller, I would like to have a toolbar at the top and then some controls (i.e. a view) that are centralized in the lower portion of the view.

The problem that I am having is that I want things to be centralized in the area below the toolbar but the whole screen size (including the toolbar) is being used when centralizing.

Any ideas how to effectively achieve this type of layout - it must be pretty开发者_如何学编程 common but I haven't found anything yet.

Thanks, Alan

You might want to try putting all your control area below the toolbar in a separate subview, since that subview might do what you want as it resizes.