自动回源ViewController

Question

我希望AddViewController在post被按下后自动关闭并返回到tableViewController。它以前一直有效，但自从我将TableViewController改为普通的ViewController，并将tableView作为子视图后，它就不再起作用了……下面是我的addVC的代码

@IBOutlet weak var postButton: CustomizableButton!
@IBOutlet weak var postBarButtonItem: UIBarButtonItem!
@IBOutlet weak var jobTextView: RoundText!


@IBAction func postPressed(_ sender: Any) {
    if jobTextView.text != "" {

        // Create and save a new job
        let newJob = Job(text: jobTextView.text)
        newJob.save()

                }
}

override func viewDidLoad()
{
    super.viewDidLoad()

    self.navigationItem.rightBarButtonItem = postBarButtonItem
    title = "What about your Job"

    jobTextView.text = ""
    jobTextView.becomeFirstResponder()
}