uiswipegesturerecognizerdirectionup 和 uinavigationcontroller 不起作用？

Posted 2023-03-22

【中文标题】uiswipegesturerecognizerdirectionup 和 uinavigationcontroller 不起作用？

【英文标题】：uiswipegesturerecognizerdirectionup and uinavigationcontroller not working?

【发布时间】：2017-08-23 05:59:43

【问题描述】：

我正在使用 uiswipegesturerecognizerdirectionup 和 down。它工作正常，但是当我添加 UINavigationController 时，滑动不起作用。 这是我的代码...

//In viewDidLoad

UISwipeGestureRecognizer *gesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(didSwipe:)];
gesture.direction = UISwipeGestureRecognizerDirectionUp | UISwipeGestureRecognizerDirectionDown;
[self.view addGestureRecognizer:gesture];

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onTapViewController:)];
[self.view addGestureRecognizer:tap];


-(void)didSwipe:(UIGestureRecognizer *)gestureRecognizer 

CATransition *animation = [CATransition animation];
[animation setType:kCATransitionPush];
[animation setSubtype:kCATransitionFromTop];
[animation setDuration:1.25];
[animation setDelegate:self];
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
CALayer *layer = [self.view layer];
[layer addAnimation:animation forKey:nil];
[self.view.window addSubview:self.view];



- (void) onTapViewController: (UIGestureRecognizer *) gesture 


- (IBAction)onClickBtn:(id)sender 

GotoNextViewController *gnvc = [self.storyboard instantiateViewControllerWithIdentifier:@"GNVC"];
[self.navigationController pushViewController:gnvc animated:NO];

在这里，当我单击按钮导航正常工作，但刷卡不起作用。

【问题讨论】：

你需要做什么，因为你的代码刷卡适用于我

当我将导航添加到根视图控制器时，它对我不起作用

你的意思是在导航或其视图控制器上滑动

您在主视图中使用 UIScrollView 吗？如果是，则无法识别上/下手势。

@iosDeveloper，由于 UIScrollView 附带的默认滚动功能，它不起作用，滑动时它会监听滚动事件。如果您禁用 UIScrollView 的“启用滚动”属性，它会起作用。这不是禁用滚动的解决方案。但是您可以使用左/右滑动而不是上/下。

【参考方案1】：

    UISwipeGestureRecognizer *gesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(didSwipe:)];
    gesture.direction = UISwipeGestureRecognizerDirectionUp | UISwipeGestureRecognizerDirectionDown;
    [self.view addGestureRecognizer:gesture];



and animation

    -(void)didSwipe:(UIGestureRecognizer *)gestureRecognizer 

        CATransition *animation = [CATransition animation];
        [animation setType:kCATransitionPush];
        [animation setSubtype:kCATransitionFromTop];
        //    [animation setSubtype:kCATransitionFromBottom];
        [animation setDuration:1.25];
        [animation setDelegate:self];
        [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
        [self.view.layer addAnimation:animation forKey:nil];

    

【讨论】：

导航正常，但在根 VC 中刷卡无法正常工作

我正在使用故事板，所以会再检查一次，谢谢...

让我们continue this discussion in chat。

【参考方案2】：

将您的 GestureRecognizer 添加到您的 navigationController 视图中，如下所示：

[self.navigationController.view addGestureRecognizer:gesture];
[self.navigationController.view addGestureRecognizer:tap];