Asks the delegate for the height to use for a row in a specified location.
- iOS 2.0+
- tvOS 9.0+
The table-view object requesting this information.
An index path that locates a row in
A nonnegative floating-point value that specifies the height (in points) that
row should be.
Override this method when the rows of your table are not all the same height. If your rows are the same height, do not override this method; assign a value to the
row property of
UITable instead. The value returned by this method takes precedence over the value in the
Before it appears onscreen, the table view calls this method for the items in the visible portion of the table. As the user scrolls, the table view calls the method for items only when they move onscreen. It calls the method each time the item appears onscreen, regardless of whether it appeared onscreen previously.