Refresh NSFetchedResultsController data?

Question

I can create new managed objects inside my app, in a separate view I have a table view which shows all the objects I have.

When I create a new managed object (in a total

Answer 1

Updated to latest swift 4.2 and Xcode 10.

extension MyListController: NSFetchedResultsControllerDelegate {
    func controllerWillChangeContent(_ controller: NSFetchedResultsController) {
        self.tableView.beginUpdates()
    }

    func controller(_ controller: NSFetchedResultsController, didChange anObject: Any, at indexPath: IndexPath?, for type: NSFetchedResultsChangeType, newIndexPath: IndexPath?) {

        switch type {
        case .insert:
            self.tableView.insertRows(at: [newIndexPath!], with: .fade)
        case .delete:
            self.tableView.deleteRows(at: [indexPath!], with: .fade)
        case .update:
            self.tableView.reloadRows(at: [indexPath!], with: .fade)
        case .move:
            self.tableView.deleteRows(at: [indexPath!], with: .fade)
            self.tableView.insertRows(at: [indexPath!], with: .fade)
        }
    }


    func controller(_ controller: 
        NSFetchedResultsController, didChange 
        sectionInfo: NSFetchedResultsSectionInfo, atSectionIndex 
        sectionIndex: Int, for type: NSFetchedResultsChangeType) {

        switch (type) {
        case .insert:
            self.tableView.insertSections([sectionIndex], with: .fade)
        case .delete:
            self.tableView.deleteSections([sectionIndex], with: .fade)
        case .move:
            self.tableView.deleteSections([sectionIndex], with: .fade)
            self.tableView.insertSections([sectionIndex], with: .fade)
        case .update:
            self.tableView.reloadSections([sectionIndex], with: .fade)
        }
    }

    func controllerDidChangeContent(_ controller: NSFetchedResultsController) {
        self.tableView.endUpdates()
    }
}