How to remove the blank space at the top of a grouped UITableView?

Question

When you create a UITableView with the UITableViewStyleGrouped style, it adds quite a lot of space in between the actual tableviewcells and the bor

Answer 1

Answer in Swift 4

If the table view is selected in interface builder and in the attributes inspector the style "Grouped" is selected, enter the following code in your view controller to fix the extra header space issue.

func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
    return CGFloat.leastNonzeroMagnitude
}