willDisplayHeaderView not being called in TableViewController

Question

Why is willDisplayHeaderView not being called in TableViewController?

- (void)tableView:(UITableView *)tableView willDisplayHeaderView:(nonnull UIView *)view forSection:(NSInteger)section
{
  //
}

---

Edit:

And heightForHeaderInSection

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
  //
}

---

Deprecation?

XCODE Version 9.0 beta 5 (9M202q)

Answer 1

Thanks Krunal! Your comment fixed it for iOS 11 (earlier iOS versions didn't have any problems)

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
  return myView;
}

Answer 2

Just in case there is someone still having this issue, please ensure you set your tableview delegate and you implemented the UITableViewDelegate.