title: How to create a UITextView or a UITextField that has a placeHolder, multiline and vertically centered?
body: <p>What I want is a very intuitive thing but surprisingly it is not included in Xcode:
  what I want is a textView or a textField that will have</p>
  
  <p>1- a placeholder<br>
   2- several lines (with scroll view like in UITextView).<br>
   3- either the text or the placeholder should always be vertically and horizontally centered in the textBoxArea .  </p>
  
  <p>I've looked at similar questions like:<br>
  <a href="https://stackoverflow.com/questions/12591192/center-text-vertically-in-a-uitextview">Center text vertically in a UITextView</a><br>
  <a href="https://stackoverflow.com/questions/22013768/center-the-text-in-a-uitextview-vertically-and-horizontally">Center the text in a UITextView, vertically and horizontally</a><br>
  <a href="https://stackoverflow.com/questions/35149587/aligning-text-vertically-center-in-uitextview">Aligning text vertically center in UITextView</a> </p>
  
  <p>for the placeHolder I am using the following library:<br>
  <a href="https://github.com/devxoul/UITextView-Placeholder" rel="nofollow noreferrer">https://github.com/devxoul/UITextView-Placeholder</a>
  which solves the first requirement but I couldn't satisfy the other 2 requirements even with the answer given in the links above</p>
  
  <p>I am using swift 3.1, deployment target iOS9, Xcode 8.3.2</p>