title: iPhone/iOS with UIKeyboard + customized toolbar layout
body: <p>I have recently clone QuickDialog project from github and played around with it.</p>
  
  <p>They seem to use the default iOS keyboard but with an extra customized view, i.e. the row that has "Previous" "Next" and "Done". Screenshot is as following 2 images:</p>
  
  <p><img src="https://i.stack.imgur.com/98rGC.png" alt="Screenshot 1"></p>
  
  <p><img src="https://i.stack.imgur.com/Fc4wm.png" alt="Screenshot 2"></p>
  
  <p>Whereas the default <code>UIKeyboard</code> will not have that row regardless what the <code>UIKeyboardType</code> is. </p>
  
  <p>I tried to look at the source code to see how they implemented that but with no luck. Does anyone know how they have done this kind of keyboard? </p>
  
  <p>Thanks in advance! </p>