UITableView section index controls are placed too tightly together

Number:rdar://15067007 Date Originated:24-Sep-2013
Status:Open Resolved:
Product:iOS Product Version:7.0/11A465
Classification:UI Reproducible:Always
On iOS < 7, the section index control of a grouped UITableView would use the full height of the UITableView to evenly distribute the tappable section buttons. In iOS 7, the controls are clustered around the vertical center, making it very difficult to correctly tap the appropriate button.

Steps to Reproduce:
1. Create a UITableView with a grouped style.
2. Populate its datasource with several sections (9 in my attached screenshot) and return appropriate titles in sectionIndexTitlesForTableView:
3. Run the app and note the placement of the section index controls.

Expected Results:
Controls are distributed evenly along the height of the UITableView (as they are in iOS 6 and earlier).

Actual Results:
Controls are clustered around the vertical center of the UITableView


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