UITableView+FetchedResultsControllerDelegate

UITableView+FetchedResultsControllerDelegate.m

#import <UIKit/UIKit.h>
#import <CoreData/CoreData.h>

@interface UITableView (FetchedResultsControllerDelegate) <NSFetchedResultsControllerDelegate>

@end

@implementation UITableView (FetchedResultsControllerDelegate)

- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller
{
	[self beginUpdates];
}

- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type newIndexPath:(NSIndexPath *)newIndexPath
{
	switch (type) 
	{
		case NSFetchedResultsChangeInsert:
		{
			[self insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationTop];
			break;
		}
		case NSFetchedResultsChangeDelete:
		{
			[self deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationTop];
			break;
		}
		case NSFetchedResultsChangeUpdate:
		{
			[self reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];
			break;
		}
		case NSFetchedResultsChangeMove:
		{
			[self deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationTop];
			[self insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationTop];
			break;
		}

		default:
			break;
	}
}

- (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type 
{
    switch(type) 
	{
        case NSFetchedResultsChangeInsert:
            [self insertSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationTop];
            break;

        case NSFetchedResultsChangeDelete:
            [self deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationTop];
            break;
    }
}


- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller
{
	[self endUpdates];
}

@end