title: Where should I put UI Code in Swift?
body: <p>So far I have used a storyboard to develop my UI.
  Now, I need to configure some UI-elements programmatically.
  For example rounded edges,..</p>
  
  <p>I could put this UI code in viewDidLoad, but that can't be the right solution.
  Concerning the MVC concept, the controller has to be separated from the View.</p>
  
  <p>So where should I put all the UI code?
  What are best practices?</p>