title: IQKeyboardManager is not working in subviews
body: <p>I have three <code>UIView</code>s in a single <code>UIViewController</code>. Each <code>UIView</code> contains a <code>UITextField</code> . But <code>IQKeyboardManager</code> is not showing next and previous arrows as every textfield is in a different view.</p>
  
  <p>Is there any solution for this? </p>