title: keyboard hiding textfield
body: <p>I have a view controller with 7 textfields and I'm adding a toolbar to the keyboard (I don't know if it is important or not, but I'm using this <a href="https://stackoverflow.com/questions/12831820/toolbar-previous-and-next-button-logic">toolbar previous and next button logic</a>). I think I have messed something up because when I jump to the next textfield the view controller is not rolling up, so the last 4 textfield are behind the keyboard while I type.</p>
  
  <p>Any tips?</p>