title: UIPageViewController within NavigationController
body: <p>I've read every tutorial I've found about UIPageViewController, but they show just basics, I'd like to create something like new twitter app has:</p>
  
  <p><img src="https://i.stack.imgur.com/X129N.png" alt="enter image description here"></p>
  
  <p>UIPageViewController is embedded into Navigation controller, title of navigation bar is based on current page and those page dots are there as well, user can tap on item on current page(item from table view/collection view) to see detail.</p>
  
  <p>I was able to come up with something similar, each page had collection view, and showing detail of some item was reflected in navigation bar, there was correct title and "&lt;" button, but I wasn't able to change title based on currently shown page</p>
  
  <p>Please, could you describe me how to do this in few steps/basic structure of controllers?</p>