title: iphone: need to implement navigationController inside viewcontroller which appears after selecting a tab in tabbar
body: <p>I am pretty new to UITabBarController. I was trying to provide a navigation system in a viewController corresponding to a tab in tabViewController</p>
  
  <p>created an instance of navigation controller in viewDidLOad</p>
  
  <pre><code>[testLabel setText:@"Test"];
  self.navigator=[[UINavigationController alloc] initWithRootViewController:self];
  [super viewDidLoad];
  </code></pre>
  
  <p>on button click I do this</p>
  
  <pre><code>NSLog(@"I am here");
  StartWordPickerVC *aStartWordPickerVC=[[StartWordPickerVC alloc] initWithNibName:@"StartWordPickerVC" bundle:nil];
  [self.navigator pushViewController:aStartWordPickerVC animated:YES];
  [aStartWordPickerVC release];
  </code></pre>
  
  <p>But when I click button nothing happens</p>
  
  <p>Can you please help me out in this
  Thanks</p>