UITableViewControllerFixes.swift

class MYViewController: UIViewController {
    ......
    .....
    ...
    private var currentOffset: CGPoint = .zero
    private lazy var inputFields: [UIView] = {
        return [self.customerField, self.materialField,
                self.startTimeTextField, self.endTimeTextField,
                self.notesTextView]
    }()
    ...
    ....
}

extension MYViewController {
  
    private func setupKeyboardNotifications() {
        NotificationCenter.default.addObserver(self,
                 selector: #selector(keyboardWillShow(_:)),
                 name: NSNotification.Name.UIKeyboardWillShow,
                 object: nil)
        NotificationCenter.default.addObserver(self,
                 selector: #selector(keyboardWillHide(_:)),
                 name: NSNotification.Name.UIKeyboardWillHide,
                 object: nil)
    }
  
    @objc
    private func keyboardWillShow(_ sender: Notification) {
        self.currentOffset = self.tableView.contentOffset
        guard let inputView = self.inputFields.filter({
            $0.isFirstResponder
        }).first else { return }
        let point = inputView.convert(inputView.bounds.origin,
                                      to: self.view)
        let x = self.tableView.contentOffset.x
        let y = point.y - 50
        self.tableView.setContentOffset(CGPoint(x: x, y: y),
                                        animated: true)
    }
  
    @objc
    private func keyboardWillHide(_ sender: Notification) {
        self.tableView.setContentOffset(self.currentOffset,
                                         animated: true)
    }
  
}