The Core iOS Developer’s Cookbook, Fifth Edition

Creating Header Titles

It takes little work to add section headers to your grouped table. The optional tableView:titleForHeaderInSection: method supplies the titles for each section. It’s passed an integer. In return, you supply a title. If your table does not contain any items in a given section or when you’re only working with one section, return nil:

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// Return the header title for a section - (NSString *)tableView:(UITableView *)aTableView     titleForHeaderInSection:(NSInteger)section {     NSString *sectionName = [crayons nameForSection:section];     if (!sectionName) return nil;     return [NSString stringWithFormat:         @"Crayon names starting with '%@'", sectionName]; }

If you aren’t happy using titles, ...