Getting the view associated with a tab

Targets iOS
1

This is driving me crazy.

I have 4 tabs, and I need to communicate with the view on tab 4 (index 3). How do I get a reference to it?
I know I’ve done this before, but I am not finding the bread crumbs…

3

You could use Delegates and keep a WeakRef in a module.
or
You could set up a notification center.