UIViewController category used to enable Marketing Cloud Personalization to automatically track screens, dynamically map them to actions, and provide APIs for tracking and campaigns.
Uniquely naming your UIViewControllers may make action-mapping screens in the Personalization web-app even faster and easier.
Should be set before viewDidAppear, such as within Interface Builder (Attribute Inspector on the view controller) or programmatically in viewDidLoad or viewWillAppear.