title: UITabBar dissapear when dismiss UIImagePickerController
body: <p>In my screenshot below, the structure of my storyboard are <code>UITabBarController</code> -> <code>UINavigationController</code> -> <code>UIViewController</code>. In my <code>UIViewController</code>, I call <code>.Camera</code> using  <code>UIImagePickerController</code> in my <code>viewDidLoad</code>. However, when users hit Cancel inside the camera, I dismiss the ViewController, and my tab bar dissapears!</p>
  
  <p>This is my codes for dismiss:</p>
  
  <pre><code>func imagePickerControllerDidCancel(picker: UIImagePickerController) {
      dismissViewControllerAnimated(true, completion: nil)
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/fOteJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fOteJ.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/4HOKY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4HOKY.png" alt="enter image description here"></a></p>
  
  <p>EDIT: Added calling of UIImagePickerController</p>
  
  <pre><code>override func viewDidLoad() 
     {
           super.viewDidLoad()
  
           let picker = UIImagePickerController()
           picker.delegate = self
           picker.sourceType = .Camera
           presentViewController(picker, animated: true, completion: nil)
     }
  </code></pre>