UIGestureRecognizers 干扰 UIToolbar？

Posted 2023-03-08

【中文标题】UIGestureRecognizers 干扰 UIToolbar？

【英文标题】：UIGestureRecognizers interfering with UIToolbar?

【发布时间】：2011-12-05 00:14:00

【问题描述】：

我正在开发一个开源杂志引擎，您可以在 GitHub 上查看它：

https://github.com/interactivenyc/Defrag

我已经在一个名为 MenuPanel 的 UIView 中设置了一个 UIToolbar。由于某种原因，UIToolbar 中的 UIBarButtonItems 没有正确调用它们的操作。这是我用于按钮的语法：

UIBarButtonItem *homeItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"home.png"] style:UIBarButtonItemStylePlain target:self action:@selector(buttonClicked:)];

发生的 是，我在屏幕上单击的任何位置，都会调用在我的主 UIViewController 中声明的 UITapGestureRecognizer。这可以在我的主 UIViewController 的这段代码中进行设置：

- (void)setupGestureRecognizers 

//NSLog(@"setupGestureRecognizer NEW");

UISwipeGestureRecognizer *swipeRecognizer;

swipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture:)];
swipeRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swipeRecognizer];
[swipeRecognizer release];

swipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture:)];
swipeRecognizer.direction = UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:swipeRecognizer];
[swipeRecognizer release];

swipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture:)];
swipeRecognizer.direction = UISwipeGestureRecognizerDirectionUp;
[self.view addGestureRecognizer:swipeRecognizer];
[swipeRecognizer release];

swipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture:)];
swipeRecognizer.direction = UISwipeGestureRecognizerDirectionDown;
[self.view addGestureRecognizer:swipeRecognizer];
[swipeRecognizer release];

UITapGestureRecognizer *tapRecognizer;

tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
[self.view addGestureRecognizer:tapRecognizer];
[tapRecognizer release];

我确信我在尝试执行此操作时在概念上存在一些非常基本的错误。谁能告诉我如何解决这个问题？

作为参考，你可以在这里查看我的主要 DefragViewController：UIViewController：

https://gist.github.com/1431722

还有我的 MenuPanel：这里的 UIView：

gist.github.com/1431728

【参考方案1】：

我解决了我自己的问题。

我不得不告诉我的 UIViewController 忽略来自任何 UIToolbar 的触摸，如下所示：

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

    //ignore any touches from a UIToolbar

    if ([touch.view.superview isKindOfClass:[UIToolbar class]]) 
        return NO;
    

    return YES;

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