title: How to change text's color and config text's touch action in AlertView?
body: <p>I want to write a <code>UIAlertView</code> like this picture:</p>
  
  <p><a href="https://i.stack.imgur.com/zY5WT.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zY5WT.jpg" alt="enter image description here"></a></p>
  
  <p>I want to write some effects in it. We call the text"click(have color)" text1, and the text remained is text2. I want to change the text1's color different from text2, and I can write some click Action so that when I click the text1, this Action will be invoked.</p>
  
  <p>I know that <code>NSAttributeString</code> can change text's color. But I didn't find which attribute can write the click Action. There's only one attribute that I can open url. But my purpose is push a viewController under a navigation.  </p>