title: IOS how to hide the top bar (with done button) on the top of the keyboard?
body: <p>I have an <code>UITextField</code>, and when the keyboard is show, their is on the top on it a bar with a "<code>done</code>" button. </p>
  
  <p><a href="https://i.stack.imgur.com/ItEuL.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ItEuL.png" alt="enter image description here"></a></p>
  
  <p>This done button is totally useless, first it's duplicate the done button already present in the keyboard and second it's not fire the event <code>ShouldReturn</code> making hard to trap any action with it. </p>
  
  <p>also i see this button on my iphone 5 + ios 9 but i not seeing it on my ipad pro + ios 10</p>
  
  <p>I m using delphi, i don't know if it's matter (other app on my iphone 5 not made with delphi don't have this "done" bar so maybe yes)</p>