title: Objective-C: navigationController pushViewController & NIBs
body: <p>I have some issues with pushViewController. Essentially so far I have a class (UIViewController) that is essentially a UITableView (i have delegates for UITable) and it shows the UITable fine. Now I want this to be a hierarchical table that goes down to another controller...</p>
  
  <p>Problem is, prior to me making this change, the NIB file because of its structure has a file owner and its a second tab item (so there is no UIApplicationDelegate in the current controller but there is for the App). I have a window with a view and a UITable underneath that.</p>
  
  <p>So my first controller is:</p>
  
  <pre><code>@interface PostsViewController : UIViewController{
  
  //@private
  
  NSFetchedResultsController          *fetchedResultsController;
  UITableView                         *tableView;
  UINavigationBar                     *navBar;
  </code></pre>
  
  <p>}</p>
  
  <p>I believe I am meant to change this to be a navcontroller or something, to be able to push a view controller with a navbar on top that links backwards?</p>
  
  <p>How do I go about doing this? </p>
  
  <p>Thanks</p>