问题描述
在我的应用程序中,我有不同的控制器。当我将controller1推到导航控制器并向后滑动时,一切正常。但是,如果我按下导航控制器1,并进入controller1推控制器2并尝试向后滑动,我得到一个冻结的应用程序。如果返回后退按钮一切正常。
In my app I have different controllers. When I push controller1 to navigation controller and swipe to back, all works good. But, if I push navigation controller1, and into controller1 push controller2 and try to swipe to back I get a frozen application. If go back through back button all works fine.
我怎样才能发现问题?
推荐答案
使用刷卡到弹出手势时,我遇到类似冻结界面的问题。
在我的情况下问题出在controller1.viewDidAppear我禁用了滑动手势: self.navigationController.interactivePopGestureRecognizer.enabled = NO
。因此,当用户开始从contorller2向后滑动时,触发了controller1.viewDidAppear并且在其工作期间禁用了手势。
I had similar problem with freezing interface when using swipe-to-pop gesture.In my case the problem was in controller1.viewDidAppear I was disabling swipe gesture: self.navigationController.interactivePopGestureRecognizer.enabled = NO
. So when user started to swipe back from contorller2, controller1.viewDidAppear was triggered and gesture was disabled, right during it's work.
我通过设置控制器1中的self.navigationController.interactivePopGestureRecognizer.delegate = self 并实现 gestureRecognizerShouldBegin:
,而不是禁用手势识别器:
I solved this by setting self.navigationController.interactivePopGestureRecognizer.delegate = self
in controller1 and implementing gestureRecognizerShouldBegin:
, instead of disabling gesture recognizer:
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)] &&
gestureRecognizer == self.navigationController.interactivePopGestureRecognizer) {
return NO;
}
return YES;
}
这篇关于InteractivePopGestureRecognizer导致应用程序冻结的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!