iOS 按住手势 + 点击 [英] iOS press and hold gesture + tap

问题描述

我有一个按住手势.在按住期间，我想检测屏幕上其他地方的单击.问题是当我开始点击屏幕上的其他地方时，按住手势被中断并且不会调用触摸"功能.有没有办法在点击其他地方时保持按住?

I have a press and hold gesture. During the the press and hold, I'd like to detect single taps elsewhere on the screen. The problem is that when I start tapping elsewhere on the screen the press and hold gesture is interrupted and does not call the "touch up" function. Is there a way to retain the press and hold while tapping elsewhere?

推荐答案

UIKit 提供了多种机制来制作多个 UIGestureRecognizers在同一个 UIView 上并排工作.哪些以及具体如何取决于根据您的需求和配置.

UIKit provides several mechanisms to make multiple UIGestureRecognizers on the same UIView work side by side. Which ones and how exactly depends on your needs and configuration.

一个是 - (void)requireGestureRecognizerToFail:(UIGestureRecognizer *)otherGestureRecognizer

但是，对于您的情况，您必须在您的视图中采用 UIGestureRecognizerDelegate 协议.

However for your case you'll have to adopt UIGestureRecognizerDelegate protocol in your view.

那么你应该实现 gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer: 方法.

Then you should implement gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer: method.

例如:

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer 
{
    return YES;
}

不要忘记让你的 UIView 成为它的 getureRecognizers 的 delegate.

Don't forget to make your UIView a delegate of it's getureRecognizers.

一些参考:

UIGestureRecognizer 类参考

UIGestureRecognizerDelegate 协议参考

iOS 事件处理指南

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