On iOS 6, my UITableView\'s section index would distribute all of its items evenly across the height of the table view. In iOS 7 all of the items are clumped together in the
One of possible solutions here - is to add empty string just after each adding of real title to your section index title array and returning index divided by 2 at your tableView: sectionForSectionIndexTitle: atIndex: method.
This trick slightly increase distance between successive titles, but doesn't completely solve this problem.