Cocoa Touch Updating UITableView from Core Data
cocoa-touch, core-data, iphone, uitableview
Solution
Typically you implement an NSFetchedResultsController in between your Core Data data and your table view.
It has delegate methods such `controllerDidChangeContent:` to inform you that the content has changed and the table view needs updating (you could call `reloadData` on the table view).
Problem
Say I have two `UIViewControllers`, all working under a `UINavigationController`: - `RootViewController` hosts a UITableView which contains a list of domain names. - `CodeViewController` shows a domain. A user can view any domain they like; once the domain is viewed in `CodeViewController`, the name is added to the store via Core Data. When the user hits the back button to return to the `RootViewController`, I want that new domain to appear in the `UITableView`. I can't make this happen. I've attempted several techniques like flushing out the array that supplies the values to the table; I've put my CD calls into `viewWillAppear` (currently in `viewDidLoad`). On the Mac, I'd just use bindings to bind the table to the CD model, but how would you do it on the iPhone? I'm stumped! Thanks, Aaron.