title: How to make an iPhone dropdown-looking button
body: <p>I've seen a dropdown-like button on many apps, including Turf Wars, that simulates a dropdown with a picker.
  I need to use the same functionality in my app, but I'm not too sure what the best way to go about it may be.</p>
  
  <p>Example:<br>
  <img src="https://farm3.static.flickr.com/2365/1503166321_8313aea93c_o.png" alt="Here&#39;s an example I found online."></p>
  
  <p>I figured I could make two images and set them as a UIButtons background image for the different states and have the button open a pickerview.</p>
  
  <p>Any input would be appreciated.</p>
  
  <p>Rod</p>