隐藏导航栏时，UINavigationContoller interactivePopGestureRecognizer处于非活动状态 [英] UINavigationContoller interactivePopGestureRecognizer inactive when navigation bar is hidden

问题描述

我有一个嵌套在 UINavigationController 中的视图控制器。

I have a view controller which is nested within a UINavigationController.

我已经实现了iOS 7 interactivePopGestureRecognizer使用户能够手势将VC从堆栈中弹出。

I have implemented the iOS 7 interactivePopGestureRecognizer to enable the user to gesture to pop a VC off the stack.

在VC中我有一个滚动视图，而用户不在滚动视图的顶部我隐藏所有chrome（导航栏和状态栏）将焦点放在内容上。

Within the VC i have a scrollview and whilst the user is not at the top of the scrollview I hide all the chrome (Navigation bar and status bar) to place focus on the content.

但是隐藏了导航栏，interactivePopGestureRecognizer无效。

However with the navigation bar hidden, the interactivePopGestureRecognizer is not working.

我已经尝试在它消失后启用并验证它不是零，但它仍然不起作用。

I have tried enabling it after it has disappeared and verified it is not nil, however it still doesn't work.

是有什么我想念的吗？

推荐答案

将你的UIViewController子类设置为gestureRecognizer的委托：

Set your UIViewController subclass as the gestureRecognizer's delegate:

self.navigationController.interactivePopGestureRecognizer.delegate = self;

就是这样！

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