Programming iOS 6, 3rd Edition

Table View Scrolling and Layout

A UITableView is a UIScrollView, so everything you already know about scroll views is applicable (Chapter 20). In addition, a table view supplies two convenience scrolling methods:

• scrollToRowAtIndexPath:atScrollPosition:animated:
• scrollToNearestSelectedRowAtScrollPosition:animated:

The scrollPosition parameter is as for selectRowAtIndexPath:..., discussed earlier in this chapter.

The following UITableView methods mediate between the table’s bounds coordinates on the one hand and table structure on the other:

• indexPathForRowAtPoint:
• indexPathsForRowsInRect:
• rectForSection:
• rectForRowAtIndexPath:
• rectForFooterInSection:
• rectForHeaderInSection:

The table’s header and footer are views, so their coordinates are given by their frames.