title: UIPageViewController with Peeking
body: <p>I'm trying to create a page browser by using a <code>UIPageViewController</code> in Interface Builder that allows displaying part of the adjacent pages (aka peeking). I've been following a tutorial at <a href="http://www.appcoda.com/uipageviewcontroller-storyboard-tutorial/" rel="noreferrer">http://www.appcoda.com/uipageviewcontroller-storyboard-tutorial/</a> (and ported it into Swift) which is rather straightforward but I can't quite figure out what changes to make to have a page displayed in the UIPageViewController which is smaller than the screen (and centered) and having the adjacent pages appear partly on the screen left and right.</p>
  
  <p>I've tried to resize the page content view controller in IB and with code but the page view controller will still fill the whole screen.</p>
  
  <p>Does anyone know of a tutorial that covers this functionality or what is a good approach to get the desired effect?</p>
  
  <p>This screenshot below from Bamboo Paper shows what I'm trying to achieve...</p>
  
  <p><img src="https://i.stack.imgur.com/YDIkk.jpg" alt="enter image description here"></p>