dropdown tableview - Swift - swift

Question

I draw data from MSSQL and load this data into tableView. No problem with that. I want to make a drop down menu, but I don't know how to do it. Now all the menus are angled. How do I make tables open and close? How can I do this? How do I make a folding tableview?
class CollapsibleTableViewController: UITableViewController {
var sectionNames: [String] = []
var sectionDetay: [String] = []
override func viewDidLoad() {
super.viewDidLoad()
makaleDetay()
tableView.estimatedRowHeight = 44.0
tableView.rowHeight = UITableView.automaticDimension
}
func makaleDetay(){
...
client.execute("SELECT soru_icerik FROM uzaktanptomg_db.omg_user.ie_soru", completion: { (_ results: ([Any]?)) in
... self.sectionDetay.append(String(result))
...
}
extension CollapsibleTableViewController {
override func numberOfSections(in tableView: UITableView) -> Int {
return sectionDetay.count
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell: CollapsibleTableViewCell = tableView.dequeueReusableCell(withIdentifier: "cell") as? CollapsibleTableViewCell ??
CollapsibleTableViewCell(style: .default, reuseIdentifier: "cell")
cell.nameLabel.text = "SSS"
cell.detailLabel.text = sectionDetay[indexPath.section]
return cell
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableView.automaticDimension
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: "header") as? CollapsibleTableViewHeader ?? CollapsibleTableViewHeader(reuseIdentifier: "header")
header.titleLabel.text = sectionNames[section]
header.arrowLabel.text = ">"
header.setCollapsed(false)
header.section = section
header.delegate = self
return header
}
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 44.0
}
override func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 1.0
}
}
extension CollapsibleTableViewController: CollapsibleTableViewHeaderDelegate {
func toggleSection(_ header: CollapsibleTableViewHeader, section: Int) {
....
}
}