隐藏导航栏时如何启用滑动手势？ [英] How to enable swipe gesture when navigation bar is hidden?

问题描述

我一直试图解决这个问题已经有一段时间了，并且无法弄明白。我有当前的设置：

I've been trying to solve this issue for quite some time and cant figure it out. I have the current set up:

In每个视图控制器我都隐藏了导航栏，如下所示：

In each view controller I hide the navigation bar like so:

        self.navigationController?.setNavigationBarHidden(true, animated: true)

问题是我在视图控制器上松开了导航栏隐藏的滑动手势。我需要启用动画并且无法使用：

The issue is I loose the swipe gesture on the view controllers that the navigation bar is hidden. I need to have the animation enabled and cannot use:

    self.navigationController?.navigationBar.isHidden = true
    self.navigationController?.isNavigationBarHidden = true 

任何帮助都会很棒，因为我相信很多人都跑了进入这个问题。谢谢！

Any help would be awesome as I'm sure many people has ran into this issue. Thanks!

推荐答案

以下是答案：只需继承您的NavigationController并执行以下操作。

Here is the answer: Just subclass your NavigationController and do the following.

  import UIKit

class YourUINavigationController: UINavigationController {
        override func viewDidLoad() {
            super.viewDidLoad()
            interactivePopGestureRecognizer?.delegate = self
        }
    }

    extension VaultUINavigationController: UIGestureRecognizerDelegate {
        func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
            return viewControllers.count > 1
        }
    }

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