title: How to intercept a phone number click (Call button) on link in UITextView?
body: <p>Is there a callback to identify when the user clicks <strong>Call</strong> in the Popup that comes when we click on a number in a textview?</p>
  
  <p><code>func textView(textView: UITextView, shouldInteractWithURL URL: NSURL, inRange characterRange: NSRange) -&gt; Bool</code></p>
  
  <p>The function mentioned above will help me identify that a link has been clicked in a UITextView, Whereas is there a specific callback to identify if <strong>Call</strong> is clicked or <strong>Cancel</strong> is clicked</p>