单击UITableView时不会发生任何情况(尝试在视图之间发送数据)

所以我有一个两页的应用程序。应用程序的目的是用户可以存储费用。他们写了一篇日志 name 和 amount Expenses ExpensesViewController )费用存储在何处,并将其带到第二个视图( EditExpensesViewController )在这里,他们可以将值更新回核心数据。我被困在视图之间的“数据传输”上。

我正在使用故事板,通过“show”将第一个视图连接到第二个视图,并将segue标识符设置为“editExpense”。但是,点击表格行时不会发生任何事情。你知道为什么它不起作用,我可能错过了什么吗? See here for GIF

费用可视控制器

import UIKit
import CoreData

class ExpensesViewController: UIViewController {

    @IBOutlet weak var totalLabel: UILabel!
    @IBOutlet weak var tableView: UITableView!

    var expenses_array = [Expenses]()
    var send_array = [Expenses]()

    override func viewDidLoad(){
        super.viewDidLoad()
        retrieveExpenses()
    }

    func retrieveExpenses(){
        let fetchRequest: NSFetchRequest<Expenses> = Expenses.fetchRequest()
        do {
            let expenses = try PersistenceService.context.fetch(fetchRequest)
            self.expenses_array = expenses
            self.tableView.reloadData()

        } catch  {
            print(error.localizedDescription )
        }
    }

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if (segue.identifier == "editExpense") {
            let secondViewController = segue.destination as! EditExpensesViewController
            secondViewController.send_array = send_array
        }
    }


}

extension ExpensesViewController: UITableViewDataSource {

    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return expenses_array.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = UITableViewCell(style: .value1, reuseIdentifier: nil)
        cell.textLabel?.text = expenses_array[indexPath.row].name
        cell.detailTextLabel?.text = expenses_array[indexPath.row].amount
        return cell
    }

    func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
        return true
    }

    func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
        if (editingStyle == .delete) {

            let fetchRequest: NSFetchRequest<Expenses> = Expenses.fetchRequest()
            do {
                let result = try PersistenceService.context.fetch(fetchRequest)

                // Delete from Core Data and remove from the arrays then save
                if result.contains(expenses_array[indexPath.row]){
                    PersistenceService.context.delete(expenses_array[indexPath.row])
                    expenses_array = expenses_array.filter { $0 != expenses_array[indexPath.row] }
                    PersistenceService.saveContext()
                    self.getTotalExpenses()
                    self.tableView.reloadData()
                }

            } catch  {
                print(error.localizedDescription )
            }
        }
    }

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        send_array = [self.expenses_array[indexPath.row]]
        self.performSegue(withIdentifier: "editExpense", sender: self)
    }

}

import UIKit
import CoreData

class EditExpensesViewController: UIViewController {

    var send_array = [Expenses]() // Defined from the previous view controller

    override func viewDidLoad() {
        super.viewDidLoad()
        print(send_array)

    }
}