title: how to display an icon or image in a uilabel or uitextview(uitextfield)
body: <p>Can a <code>UILabel</code> display an icon or image? ?<br>
  I was making a chat application, which needs to show icon or image or custom image in a <code>UILabel</code> or <code>UITextField</code> so that an expression or pictures can be displayed. How to do this?</p>