title: Draw dotted (not dashed!) line, with IBDesignable in 2017
body: <p>It's easy to draw a <strong>dashed</strong> line with UIKit. So:</p>
  <pre><code>CGFloat dashes[] = {4, 2};
  [path setLineDash:dashes count:2 phase:0];
  [path stroke];
  </code></pre>
  <p><img src="https://i.stack.imgur.com/GnCkB.jpg" alt="enter image description here" /></p>
  <p>Is there any way way to draw a genuine dotted line?</p>
  <p><img src="https://i.stack.imgur.com/NZROv.jpg" alt="enter image description here" /></p>