title: Why can't Emoji display correctly in a UITextField?
body: <p>When an Emoji character is set using the code below:</p>
  
  <pre><code>self.textField.text = @"\ue415";
  </code></pre>
  
  <p>It just display as a square. But when I input an Emoji from the keyboard it displays correctly. What's the problem?</p>
  
  <p><em>PS: I'm using IOS 5.1</em></p>
  
  <p><img src="https://i.stack.imgur.com/SOgKh.png" alt="Text View with Emoji Characters"></p>