title: How to create a custom keyboard
body: <p>How do I go about creating a custom keyboard/keypad that will show up when some one taps on a UITextField?  I would like to display a keypad with a, b, c, 1, 2, 3 and an enter button, nothing else.  The keypad should work and behave like the standard keyboard does (in behavior) but it will definitely look different.</p>
  
  <p>I can't find any example and the best I've found is to filter characters with existing keyboard which is an unacceptable solution.</p>