title: Resizing ViewController to accommodate the keyboard
body: <p>This is for XCode, creating an app for iPhone. </p>
  
  <p>Ok, so I am creating a sign up screen using a <strong>UIViewController</strong>. It has about 6 <strong>textfields</strong> on it so they accommodate most of the page. problem is when I wish to type data in to them using the keyboard, the keyboard blocks the view of the lower <strong>textfields</strong>.</p>
  
  <p>Is there any way I can resize the <strong>UIViewController</strong> for when the keyboard appears and then returns to normal once the keyboard is dismissed so that I can see the <strong>textfields</strong>?</p>