What is the vertical alphabet in the named iOS phone book?

Question

Is it a small vertical alphabet that allows you to skip the selected letter in the iOS contact manager, built in the form of some type, or is it some weird mixture of user presentation and delegation methods?

thanks

Answer 1

He called the "indexed list" or "section index" in the documentation.

For a quick hint, view the documentation for the UITableViewDataSource sectionIndexTitlesForTableView: and tableView:sectionForSectionIndexTitle:atIndex: .

For more information, see Populating an Indexed List in the Table Programming Guide