title: UIView with rouded top side
body: <p>I create this post to answer to the question on hold posting at <a href="https://stackoverflow.com/questions/28006590/create-a-uiview-with-rounded-top-side">Create a UIView with rounded top edge</a></p>
  
  <p>The question is how to create a rounded UIView like this ?</p>
  
  <p><img src="https://i.stack.imgur.com/1jr5R.jpg" alt="enter image description here"></p>
  
  <p>... and NOT like this (2 rounded corners)
  <img src="https://i.stack.imgur.com/wLQ8U.png" alt="enter image description here"></p>
  
  <p>Answer : <a href="https://stackoverflow.com/a/28075863/1952147">https://stackoverflow.com/a/28075863/1952147</a></p>