Add Navigation Bar on ChildViewController

Question

I want a new View Controller as a pop-up (which have some Parents View Controller scene ). So i am decided to add childViewController (which have 50px transparent border from all side.) Now when i adding childViewController i didn't get navigationBar. This is how i am adding full sized childViewController.

    ShowPostTVC *postvcObj = [self.storyboard instantiateViewControllerWithIdentifier:@"ShowPostTVC"];

    UINavigationController *childNavController = [[UINavigationController alloc] initWithRootViewController:postvcObj];
  [self.navigationController addChildViewController:childNavController];
  [self.navigationController.view addSubview:postvcObj.view];
  [postvcObj didMoveToParentViewController:self];

How i can i get real navigation Bar on childViewController.

Answer 1

The correct way of showing a new ViewController is via UINavigationController's pushViewController:animated. Then the new ViewController has a NavigationBar:

ShowPostTVC *postvcObj = [self.storyboard instantiateViewControllerWithIdentifier:@"ShowPostTVC"];
[self.navigationController pushViewController:postvcObj animated:true]; 

Answer 2

Instead of instantiating a new UINavigationController just use the following:

ShowPostTVC *postvcObj = [self.storyboard instantiateViewControllerWithIdentifier:@"ShowPostTVC"];
[self.navigationController pushViewController:postvcObj];