How to reload a UITableView after dismissing another ViewController?

Question

Swift

Hello! CategoriesViewController has a TableView into which I draw data from CoreData. There is a button, by clicking on which AddCategoryVC appears modally, on it new entries are added to CoreData, after saving the AddCategoryVC data, I remove it from the screen using the dismiss method. Now the question arose how to reload the TableView of the CategoriesViewController. Tried to pass CategoriesViewController as a property to AddCategoryVC and reload the table, but it doesn't work

Answer 1

You need observers . Read more here .
The cordatas are scary, I love them from Realm.
In observer processing, you can check changes in old and new data, rearrange and delete animatedly .
Delegates, notifications, viewWillAppear - solutions on the verge of crutches , forgive me my colleague.