title: How does UIEdgeInsetsMake work?
body: <p>I'm making an app where I use <code>UIEdgeInsetsMake</code> for <code>resizableImageWithCapInsets</code>, but I don't understand how does it works exactly, <code>UIEdgeInsetsMake</code> has 4 arguments:</p>
  
  <ul>
  <li>Top</li>
  <li>Left</li>
  <li>Bottom</li>
  <li>Right</li>
  </ul>
  
  <p>But they're floats so I don't know how to set that to an image, thanks! :D</p>