title: Prevent user screenshot like ScreenShieldKit
body: <p>How can I protect against a user taking a screenshot using the Top/Side + Home/Volume up buttons on the device like ScreenShieldKit <a href="https://screenshieldkit.com/" rel="nofollow noreferrer">https://screenshieldkit.com/</a></p>
  
  <p>I want a black screen before user take a screenShot.</p>
  
  <p>Example of ScreendShield web site</p>
  
  <pre><code>import ScreenShieldKit
  
  let label = SSKProtectedLabel(text: "Hello World")
  view.addSubview(label)
  
  let image = UIImage(named: "MyImage")
  let imageView = SSKProtectedImageView(image: image)
  view.addSubview(imageView)
  </code></pre>