title: Playground Timeline Not Displaying View
body: <p>The timeline view is not working for me in Xcode 8.2.1 and Swift 3.0. I am using the code below. Anyone have an idea why this isn't displaying anything in the Timeline? I am also wondering if it might be an Xcode issue.</p>
  
  <pre><code>import UIKit
  import PlaygroundSupport
  
  let contentView = UIView(frame: CGRect(x: 0, y: 0, width: 320.0, height: 600.0))
  contentView.backgroundColor = UIColor.white
  
  PlaygroundPage.current.liveView = contentView
  </code></pre>