当alertviewcontroller打开时,呈现新的VC

Question

我想显示一个新的ViewController,但是当显示AlertController时它不起作用.(我不想使用现有的segue,只能在swift中使用).有人可以帮帮我吗？这只是一个简单的例子,在我的应用程序中我使用了一个显示加载器的自定义AlertController.因此,我不希望在单击警报按钮后重定向

提前致谢

Ps:抱歉我的英语不好.

@IBAction func testButtonClick(_ sender: AnyObject) {
    let alert = UIAlertController(title: nil, message: "test", preferredStyle: UIAlertControllerStyle.alert)
    self.present(alert, animated: true, completion: nil)
    logout()
}

func logout() {
    let storyboardName = "Authentication"
    let storyboard = UIStoryboard(name: storyboardName, bundle: nil)
    if let newVC = storyboard.instantiateInitialViewController() {
        newVC.modalPresentationStyle = UIModalPresentationStyle.fullScreen
        self.present(newVC, animated: true)
    } else {
        print("Unable to instantiate VC from \(storyboardName) storyboard")
    }
}

Answer 1

你可以这样使用.

let alert = UIAlertController(title: nil, message: "test", preferredStyle: UIAlertControllerStyle.alert)
        self.present(alert, animated: true, completion: nil)

        let storyboard = UIStoryboard(name: "Main", bundle: nil)
        let newVC = storyboard.instantiateViewController(withIdentifier: "ChildViewController") as? ChildViewController


        newVC?.modalPresentationStyle = UIModalPresentationStyle.fullScreen

        presentedViewController?.present(newVC!, animated: true)