title: How do I implement UIPageControl in Swift
body: <p>Ok so I'm struggling here and haven't been able to find a working solution. I've been self learning Swift without Objective C experience (I know, I know). </p>
  
  <p>In my app, I have my main <code>UIViewController</code>, a subview that is transparent but slides in from the bottom of the screen, and then 4 subviews of the sliding subview that are all working UIScrollViews. I have paging enabled and it works great but I'd like to add a UIPageControl for each of them. I seriously can't grasp delegates and how to implement the using swift. Any help would be much appreciated! </p>
  
  <p>Also, I'm doing this all programmatically, so no IB please. Happy to provide code if it'll help. Thanks</p>