title: How to hide an iOS numeric keyboard
body: <p>I'm using a numeric keyboard for input from a UITextField.  I noticed that Interface Builder has a return key property called "Done".  When I select "Done" under the return key options, I do not see that a Done button is created on the numeric keyboard.  I see the "Done" button on other keyboard types if I change it from a numeric keyboard to something else, but not when using a numeric keyboard.  </p>
  
  <ul>
  <li>I want to create a "Done" button on the keyboard which will hide the keyboard when pressed</li>
  <li>I want to do this because of the amount of real estate the keyboard takes up</li>
  <li>I'm very new to iOS development, so the easiest and least convoluted way to accomplish this goal would be appreciated</li>
  </ul>
  
  <p>Thanks in advance!</p>