title: How to remove image and write text in a UIButton in Swift?
body: <p>I have a button that displays an image from my Assets, on click of a button I want to replace the image by text,</p>
  
  <p>I am doing this,</p>
  
  <pre><code>workExpExpand.setImage(nil, forState: .Normal)
  workExpExpand.setTitle("Done", forState: .Normal)
  </code></pre>
  
  <p>the image disappears, but the text is blank. </p>
  
  <p>What can I do?</p>