title: Display and hide Textfield programmatically for iPhone/Cocoa Touch
body: <p>I'm trying to create a custom editor for my UIViewController. It was suggested that I hide the textfields until the user presses the Edit key. How do you do this programmatically?</p>
  
  <p>In other words when the user hits 'Edit' I would like the label to disappear and the Textfield to appear. </p>
  
  <p>Thanks, </p>