title: iOS iPhone - get UIKeyboard height BEFORE keyboardWillShow
body: <p>I am aware that I can get the UIKeyboard height from UIKeyboardFrameEndUserInfoKey on the keyboardWillShow and keyboardDidShow notifications triggered when it becomes a first responder.</p>
  
  <p>HOWEVER, I would like to know the expected height of a keyboard before these events so I can setup certain design elements at viewDidLoad of a view controller.</p>
  
  <p>Since devices are changing and the new spell correction bar changes the keyboard height I do NOT want to hard code the height.</p>
  
  <p>Does anyone know how to get the expected height from the keyboard taking into account whether it has auto-correct or not etc?  </p>