heightForFooterInSection

HeightForFooterInSection is a delegate method of UITableViewDelegate that requests the height of the footer for a given section in a table view. It lets you customize the vertical space allotted to each section’s footer. In Objective-C it is declared as - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section;. In Swift, it is func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat.

Return value is a CGFLoat expressing the height in points. A positive value sets the footer height for that section. Returning 0 hides the footer for that section. If you provide a custom footer view via viewForFooterInSection, the returned height should correspond to the actual height of that view to avoid clipping or excess empty space. This method works in tandem with viewForFooterInSection and can influence layout and scrolling behavior.

Default behavior and related considerations: If the delegate does not implement this method, the table view uses its default sectionFooterHeight property. You can also adjust the overall footer height via tableView.sectionFooterHeight. For dynamic content, you can supply a custom footer view with Auto Layout and optionally set estimatedSectionFooterHeight to improve scrolling performance, letting the table view calculate the final height as needed.