title: How do I change image of button when pressed xcode 7 / Swift 2?
body: <p>I have this so far and don't know what to do next.I currently have a button in my view controller with an image (play image) and want to change it to pause image when clicked.</p>
  
  <pre><code>import UIKit
  import AVFoundation
  
  class VesuviusViewController: UIViewController {
  
  
  @IBOutlet weak var PausePlay: UIButton!
  
  
  
  @IBAction func playPressed(sender: AnyObject) {
      VesSet()
  
  }
  </code></pre>