title: How to load data for next page using UIPageViewController
body: <p>I got UIPageViewController working finally a few days ago. I am using different UITableViewControllers as the "pages". There is a slight problem that i have that i want to fix.</p>
  
  <p>When i scroll, the view is empty until fetches the new data which i don't like. I would like the data to be loaded before scrolling so it goes swiftly. So the question is: If i can load the next page somehow before scrolling.</p>
  
  <p>I thought of a way to "fix" this in an ugly way by calling the fetch function somewhere before and save the dictionary in  <strong>NSUserDefaults</strong> so when the view loads for the first time the data is already "loaded" and can be used. </p>
  
  <p>Any other ideas of how this can be done the "right" way?</p>