title: How to hide Textbox Keyboard when "Done / Return" Button is pressed Xcode 4.2
body: <p>I created a Text Field in Interface Builder.  I set it's "Return Key" to Done.  This is a one line only input (so it wont need multiple lines).</p>
  
  <p>How do I hide the virtual keyboard when the user taps the done button?</p>