title: UIButton Image Not Changing With Interface Builder Settings (Selected & Disabled)
body: <p>I am trying to set the toggle state of a UIButton through the interface builder. I have done it successfully using code, but I need to get it working through the interface builder.</p>
  
  <p>Im not sure what the issue is  but for selected I set its image to 'flashOn' and for disabled I set it to 'flashOff'</p>
  
  <p><img src="https://i.stack.imgur.com/NGzvq.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/Y4Cyr.png" alt="enter image description here"></p>
  
  <p>When I hold down the image, it shows the 2nd image, but pressing the image does not toggle between these two images.</p>
  
  <p>Im certain it's super simple so if you can suggest what I am missing I would appreciate it</p>