title: How to have a Date Input Keyboard for UITextField in Xcode / iOS
body: <p><strong>The problem:</strong> For the UITextField, there are several selections of keyboard to use.  For inputting dates, certain number pads may be used, but they either appear to have too many keys there or too less.  The closest is the 'Phone Pad' or the 'Number Pad' -- but either is sufficient to have something like '/' or '-' as keys.  </p>
  
  <p><strong>The questions:</strong> Is there a way to extend these built-in keyboards (e.g. the Number Pad) for just inputting dates?  The best solution would be that the 'Date Keyboard' can be added to the Xcode, but I'd settle to have one for my own code by adding it programmatically.</p>
  
  <p>I guess the same goes for other types of input keyboards, such as temperature (with different units), weight, height, etc.</p>
  
  <p>Any suggestions and sharing the code / experience would be greatly appreciated.</p>