Scroll to bottom TableView with custom section and cell Swift

Question

My tableview has custom sections and cells. Every time the user scroll to the bottom it will call the server and load additional datas. My problem is how do I detect the last section so it could load more data? Each section contain 1 to 3 rows. My willDisplay wasn't working properly and the refreshControl.beginRefreshing() indicator didn't show too. Thanks!

let refreshControl = UIRefreshControl()

//MARK - Header Sections
func numberOfSections(in tableView: UITableView) -> Int {
    return tableData[segmentedControlIndex].count
}

func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
    return 40
}

func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
    let cell = tableView.dequeueReusableCell(withIdentifier: "headerCell") as! HomeSectionTableViewCell

    let model = events[segmentedControlIndex][section]
    cell.setup(model: model)

    .
    .
    .

    return cell.contentView
}

//MARK - Cells
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return tableData[segmentedControlIndex][section].rows.count
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "detailCell") as! HomeTableViewDetailCell

    .
    .
    .

    cell.detailTitleLabel?.text = tableData[segmentedControlIndex][indexPath.section].rows[indexPath.row].detailTitleLabelString
    cell.detailSubtitleLabel?.text = tableData[segmentedControlIndex][indexPath.section].rows[indexPath.row].detailSubtitleLabelString

    return cell
}

func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
    return 0.000001
}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    if let cell: HomeTableViewDetailCell = tableView.cellForRow(at: indexPath) as? HomeTableViewDetailCell {
        cell.detailTitleLabel?.numberOfLines = cell.detailTitleLabel?.numberOfLines == 0 ? 1 : 0            
        tableView.reloadData()
    }
}

//MARK - TableView add more data
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
    if indexPath.section == tableView.numberOfSections - 1 {
        self.refreshControl.beginRefreshing()
        self.page = self.page + 1
        self.getMoreData() { result in
            self.refreshControl.endRefreshing()
            print("Load More Bets Data reload: \(result == true ? "Success":"Failure")")
        }
    }
}