How to create a custom header in tableview section that stretch when orientation changes

    override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {

        if section == TableSections.OtherDevices.rawValue {

            let v = UIView(frame: CGRect(x: 0, y: 0, width: tableView.bounds.width, height: SetupConstants.DEFAULT_HEADER_HEIGHT))

            self.spinner.center = CGPoint(x:(tableView.bounds.size.width - (SetupConstants.DEFAULT_HEADER_HEIGHT / 2)), y:SetupConstants.DEFAULT_HEADER_HEIGHT/2)

            spinner.hidesWhenStopped = true

            spinner.startAnimating()

            spinner.color = UIColor.blue

            

            v.addSubview(spinner)

            spinner.autoresizingMask = .flexibleLeftMargin

            v.autoresizingMask = .flexibleWidth

            return v

        }

        return nil

    }