How to return the number of rows in a UITableView with Core Data

Likewise, here’s how we return the number of rows using a fetched results controller – as provided by the Master / Detail template:

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    id <NSFetchedResultsSectionInfo> sectionInfo = [[self.fetchedResultsController sections]objectAtIndex:section];
        
    return [sectionInfo numberOfObjects];
}