Dismissing Pushed view controller without NavigationController - ios

Question

I have two view controllers.
VC1 - Displays data in a tableView, selecting one of the cells goes to VC2.
VC2 - Show text fields to edit the data.
Question - After updating the data and going back to VC1, it does not show the updated data in the table.
I did try adding tableView.reloadData() in ViewWIllAppear but the ViewWillAppear method is not called when I dismiss VC2.
//CODE BELOW
VC2 -
#IBAction func saveTask(_ sender: Any) {
self.dismiss(animated: true, completion: nil)
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(true)
view.endEditing(true)
if let task = task {
task.completed = toggleStatus.isOn
}
}
VC1 -
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(true)
tableView.reloadData()
}

Answer 1

You have to update the item in the collection of your data that selected from table view
Example:
// The collection of your data is used to show in table view
var data: [String] = []
// After navigated back to the VC1, you have to update like:
data[you_selected_index] = inputData // From VC2
tableview.reloadData()
UPDATED
class VC1: UIViewController {
private var selectedIndex: Int?
}
extension VC1: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
selectedIndex = indexPath.row
let vc = VC2()
vc.delegate = self
present(vc, animated: true, completion: nil)
}
}
// MARK: - InputInfoVCDelegate
extension VC1: VC2Delegate {
func onInputInfoSuccessUpdated(source: String?) {
// Updating data here
guard let index = selectedIndex else { return }
data[index] = source
tableView.reloadData()
}
}
protocol VC2Delegate: class {
func onInputInfoSuccessUpdated(source: String?)
}
class VC2: UIViewController {
weak var delegate: VC2Delegate?
#IBAction private func actionTapToBackButton(_ sender: Any) {
delegate?.onInputInfoSuccessUpdated(source: inputTextField.text)
}
}