title: Creating a custom view with PKHUD in swift 3
body: <p>I am trying to create a custom view using PKHUD so that when API calls fail I can display a message to our users along with a button to call for help.</p>
  
  <p>Here is my class file:</p>
  
  <pre><code>import UIKit
  import PKHUD
  
  class PKHUDHelpDeskView: PKHUDWideBaseView {
  
      private func callNumber(phoneNumber:String) {
          if let phoneCallURL = URL(string: "tel:\(phoneNumber)") {
              let application:UIApplication = UIApplication.shared
              if (application.canOpenURL(phoneCallURL)) {
                  if #available(iOS 10.0, *) {
                      application.open(phoneCallURL, options: [:], completionHandler: nil)
                  } else {
                      // Fallback on earlier versions
                  }
              }
          }
      }
  
      @IBAction func helpDeskNumberButton(_ sender: Any) {
          callNumber(phoneNumber: "8005551234")
      }
  }
  </code></pre>
  
  <p>Here is how I am calling it:</p>
  
  <pre><code>PKHUD.sharedHUD.contentView = PKHUDHelpDeskView()
  PKHUD.sharedHUD.show()
  PKHUD.sharedHUD.hide(afterDelay: 4.0)
  </code></pre>
  
  <p>I have a view set up in storyboard (with the class set to PKHUDHelpDeskView) with the button and the a text field displaying the message. When I run this, the PKHUD displays with no text in it. The class file and the storyboard are properly connected, so what needs to be done to get the text to display in the PKHUD?</p>