title: Smooth Transition with UIPageViewController and UISegmentedControl like in Apple Music App
body: <p>In an app that im currently developing im switching between two UITableViewController's with a UISegmentedControl inside the UINavigationBar. The new Apple Music has a very neat effect where a user switches between UIViewController's inside a UIPageViewController. The associated UISegmentedControl adjusts smoothly to this. How should a basic storyboard setup or code base look to achieve something like this?</p>
  
  <p><img src="https://i.stack.imgur.com/YgU4N.gif" alt="UIPageViewController and UISegmentedControl in Apple Music App"></p>