title: How programmatically move a UIScrollView to focus in a control above keyboard?
body: <p>I have 6 <code>UITextFields</code> on my <code>UIScrollView</code>. Now, I can scroll by user request. But when the keyboard appear, some textfields are hidden. </p>
  
  <p>That is not user-friendly. </p>
  
  <p><strong>How scroll programmatically the view so I get sure the keyboard not hide the textfield?</strong></p>