当将数据传回主视图时，Swift NavigationBar 被隐藏

Question

大家好，我是 swift 的新手，我在网上搜索了很长时间。但没有用。请帮助或尝试给出一些如何实现这一目标的想法。

This is Main View

and when I Select "TestToNextPage"(tableViewCell) will push to SecondView like this photo

and when I select VC2 "Test2" button will pass data back to MainView but the NavigationBar will dissmiss

I also try this code in MainView and SecondView but is didn't work

override func viewWillLayoutSubviews() {
        self.navigationController?.navigationBar.isHidden = false
    }

MainView code for tableViewCell

private func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1
    }
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 1
    }
func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath)-> UITableViewCell {
let cellIdentifer = "Cell"
let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifer, for: indexPath as IndexPath)
    cell.textLabel?.text = "TestToNextPage"
    cell.accessoryType = .disclosureIndicator
    return cell
   }
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
 {
     let mainStoryboard = UIStoryboard(name: "Main", bundle: nil)
     let SecondViewController = mainStoryboard.instantiateViewController(withIdentifier: "SecondViewController")
        self.navigationController?.pushViewController(SecondViewController, animated: true)

SecondView Btn code

 var MainVC: ViewController
 @IBAction func TestBtn(_ sender: UIButton){
        MainVC?.MainArray = TestArray      //pass TestArray to MainArray
        MainVC?.delegate = self
        self.performSegue(withIdentifier: "SecondSegue", sender: nil)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if segue.identifier == "SecondSegue" {
            MainVC = segue.destination as? ViewController
            MainVC?.MainArray = self.TestArray
    }
    func dismissMainViewController(Controller:UIViewController){
        if MainVC == Controller as? ViewController{
            self.TestArray = (MainVC?.MainArray)!
        }
    }

我的 Storyboard

有人有任何想法或有其他最好的方法吗？感谢伙伴的帮助

Answer 1

尝试在 Storyboard 中的第二个 View Controller 上嵌入导航 Controller ，然后将 View Controller 连接到刚刚添加的导航 Controller 。