title: Custom numbers and characters keyboard for iPhone in Objective C
body: <p>The keyboard shown below is not part of the defaults supplied by Cocoa, so it has to be custom built. I need to create a keyboard that looks just like the one below.</p>
  <p>I've seen a few apps out there that use it, I saw some tutorials that add a custom bar on top with some buttons, but I need it to look and function just like a normal keyboard but with an extra row of numbers.</p>
  <p>How can this be done programmatically in Objective C? Can someone please point me in the right direction?</p>
  <p><img src="https://i.stack.imgur.com/aO3LW.png" alt="enter image description here" /></p>