title: JSQMessagesViewController with Navigation Bar
body: <p>I am struggling to add a navigation bar to a JSQMessagesViewController. Is it possible to do this in interface builder or do I have to create the navigation bar programmatically? </p>
  
  <p>When attempting to do this with IB, the navigation bar is not visible at runtime and the messages scroll all the way to the top of the iPhone display. I would think that constraints need to be added in order for this to work. I am not sure how or what to add the constraints to since there isn't anything other than my navigation bar in IB. </p>
  
  <p>Sorry if this is a basic question, thanks for any guidance you can provide! </p>
  
  <p>UPDATE:
  I am still curious if this can be done via IB. However, I have figured out how to do this programmatically. I added the following to viewDidLoad()</p>
  
  <pre><code>    // Create the navigation bar
      let navigationBar = UINavigationBar(frame: CGRectMake(0, 0, self.view.frame.size.width, 64)) // Offset by 20 pixels vertically to take the status bar into account
  
      navigationBar.backgroundColor = UIColor.whiteColor()
      navigationBar.delegate = self;
  
      // Create a navigation item with a title
      let navigationItem = UINavigationItem()
      navigationItem.title = contacts[i].firstName
  
      // Create left and right button for navigation item
      let leftButton =  UIBarButtonItem(title: "Back", style:   UIBarButtonItemStyle.Plain, target: self, action: "btn_clicked:")
      let rightButton = UIBarButtonItem(title: "Details", style: UIBarButtonItemStyle.Plain, target: self, action: "details_clicked:")
  
      // Create two buttons for the navigation item
      navigationItem.leftBarButtonItem = leftButton
      navigationItem.rightBarButtonItem = rightButton
  
      // Assign the navigation item to the navigation bar
      navigationBar.items = [navigationItem]
  
      // Make the navigation bar a subview of the current view controller
      self.view.addSubview(navigationBar)
  </code></pre>
  
  <p>This seems to get the job done. Let me know if there is a better way to go about this.</p>