Question

ProfileVC是一个选项卡菜单视图。我从ProfileVC推送了带有导航控制器的SampleView。如果我关闭SampleView，我可以在ProfileVC上看到tabBar，但是如果我从SampleView中看到ProfileVC，则看不到tabBar，它将消失。

解雇将是一个问题。我需要直接进入profileView视图

多数民众赞成在推回代码。

@IBAction func goToToolbox(_ sender: Any) {
        let transition = CATransition()
        transition.duration = 0.3
        transition.type = kCATransitionPush
        transition.subtype = kCATransitionFromRight
        transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
        view.window!.layer.add(transition, forKey: kCATransition)

        let presentedVC = self.storyboard!.instantiateViewController(withIdentifier: "ToolboxVC")
        presentedVC.navigationController?.navigationBar.backgroundColor = UIColor.cyan

        let nvc = UINavigationController(rootViewController: presentedVC)
        present(nvc, animated: false, completion: nil)
    }


@objc func didTapCloseButton(_ sender: Any) {
        if let presentedVC = presentedViewController {
            let transition = CATransition()
            transition.duration = 0.3
            transition.type = kCATransitionPush
            transition.subtype = kCATransitionFromLeft
            transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
            presentedVC.view.window!.layer.add(transition, forKey: kCATransition)
        }
        let profileVC = self.storyboard!.instantiateViewController(withIdentifier: "ProfileVC")



       present(profileVC, animated: false, completion: nil)
        presentedVC = nil
    }

Answer 1

主要是因为您实例化了UIViewController而不是TabBar。

UIViewController嵌入在TabBar内，

您需要在TabBarController上为您的IB指定一个标识符

并使用它来显示它，它将自动切换到第一个标签。

     let TabBar = self.storyboard!.instantiateViewController(withIdentifier: "MyTabBarID")

      present(TabBar, animated: false, completion: nil)

但是，我不知道为什么不dismiss像这样展示UINavigationController。

 self.navController.dismiss(animated: true) {
     self.navController = nil
}

在选项卡菜单中按下视图时，选项卡消失吗？

1 个答案: