I've got a view that I use for adding data into a table. I show this view using presentViewController:
AddViewController *avc = [self.storyboard instantiateViewControllerWithIdentifier:@"addview"];
[self presentViewController:avc animated:YES completion:nil];
This UINavigationController is the root view controller for a UIViewController that displays the add controls.
I trigger this UINavigationController from a couple of different places in my project and I'd like to have slightly different text for each. How can I interact with the UIViewController from where I call presentViewController, or otherwise change UIViewController depending on where it was invoked?