title: How do I save details (using NSUserDefaults) in a containers view controller from a save button in the view controller holding the container view?
body: <p>Basically I have a view controller with a save button which holds a container view. Inside this container is a view table view controller of static cells which hold text fields. I would like to be able to save the information in these fields using NSUserDefaults with the save button in the top layer view controller.</p>
  
  <p>I understand how to get this working in a single view controller but am having difficulties when incorporating it into a container view as described. Is this a case of pointing to the relevant information which requires saving?</p>
  
  <p>Swift2, Xcode.
  Thanks in advance for any help.</p>