`touchesBegan：withEvent：`在屏幕左边延迟 [英] `touchesBegan:withEvent:` is delayed at left edge of screen

问题描述

我遇到一个问题，在 UIView 或<$上首次调用 touchesBegan：withEvent：当您触摸屏幕的左边缘时，c $ c> UIViewController 会延迟。这似乎是iOS 10的一个新问题，只发生在具有3D Touch（iPhone 6s和更新版本）的设备上。事实上，如果您在General-> Accessibility中禁用3D Touch，则问题就会消失。

I'm experiencing an issue where the first call to touchesBegan:withEvent: on a UIView or UIViewController is delayed when you touch on the left edge of the screen. This seems to be a new issue with iOS 10, and only happens on devices with 3D Touch (iPhone 6s and newer). In fact, if you disable 3D Touch in General->Accessibility, the issue goes away.

但是，使用<$ c时似乎不会出现此问题$ C> UIGestureRecognizers 。我目前的解决方法是创建一个 UIGestureRecognizer 子类，它覆盖 touches * 方法并将它们转发到我的旧实现。

However, the issue doesn't seem to happen when you use UIGestureRecognizers. My workaround at the moment is to create a UIGestureRecognizer subclass that overrides the touches* methods and forwards them to my old implementation.

这只是一个错误还是有办法摆脱延迟？

Is this just a bug or is there a way to get rid of the delay?

推荐答案

尝试将此添加到viewdidappear方法。这可能会解决问题。它也发生在我身上，但我从堆栈溢出中得到了这个代码来解决我的问题。希望它也能帮助你

try adding this to the viewdidappear method. this might fix the issue. it happened with me as well but i got this code from stack overflow that fixed my issue. hope it helps you too

let window = view.window!
let gr0 = window.gestureRecognizers![0] as UIGestureRecognizer
let gr1 = window.gestureRecognizers![1] as UIGestureRecognizer
gr0.delaysTouchesBegan = false
gr1.delaysTouchesBegan = false

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