使用导航控制器时，关闭视图控制器不起作用 [英] Dismissing View Controller Doesn't Work While Using Navigation Controller

问题描述

我有两个视图控制器.

第一个嵌入在导航控制器中.在第一个视图控制器上有 Bar Button Item，它通过 segue 连接到第二个视图控制器.转场设置为推送.一旦我转到第二个视图控制器，就会有一个 Bar Button Item，它是一个 IBAction 应该关闭页面，但它没有.>

第二个视图控制器代码:

导入 UIKit类 Page2ViewController: UIViewController {覆盖 func viewDidLoad() {super.viewDidLoad()}@IBAction func donePressed(_ sender: Any) {解雇(动画:真实，完成:无)}}

解决方案

在你的 donePressed(_:) 函数中，访问导航控制器并调用 popViewController(_:)代码>函数.

@IBAction func donePressed(_ sender: Any) {导航控制器? .popViewController(动画:真)}

I have two view controllers.

The first one is embedded in a Navigation Controller. On the first view controller there is Bar Button Item which is connected by a segue to the second view controller. The segue is set as Push. Once I go to the second view controller there is a Bar Button Item which is an IBAction and should dismiss the page, but it doesn't.

Second View Controller Code:

import UIKit

class Page2ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

    }

    @IBAction func donePressed(_ sender: Any) {
        dismiss(animated: true, completion: nil)
    }

}

解决方案

Within your donePressed(_:) function, access the navigation controller and call the popViewController(_:) function.

@IBAction func donePressed(_ sender: Any) {
     navigationController?.popViewController(animated: true)
}

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