react / react/react-native

【Android】Touch event misbehavior with multiple touch points

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Issue: Author Provided Repro Platform: Android
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描述

Description

When I have multiple touch points on Android, events are mistakenly triggered.

In my case, when I place my finger on view A, which is bound to touch events, if I do not release my finger and place another finger on view B, the touch event for view A is triggered again, even though the second finger is on a different view.

I tested the behavior on iOS, and with the same operation, if my other finger is on view B, the touch event for view A is not triggered. Only if the other finger is also placed on view A will the touch event for view A be triggered again.

I also tried using TouchableWithoutFeedback, Pressable, and encountered the same issue on Android.

Steps to reproduce
  1. Install the app
  2. Place one finger on a view that is bound to an event and keep it there, then place another finger on a view that is not bound to any event to reproduce the issue
React Native Version

0.80.1

Affected Platforms

Runtime - Android

Output of npx @react-native-community/cli info
System:
  OS: macOS 14.2.1
  CPU: (8) arm64 Apple M3
  Memory: 135.97 MB / 16.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 23.10.0
    path: ~/.nvm/versions/node/v23.10.0/bin/node
  Yarn:
    version: 1.22.22
    path: /usr/local/bin/yarn
  npm:
    version: 10.9.2
    path: ~/.nvm/versions/node/v23.10.0/bin/npm
  Watchman:
    version: 2024.10.21.00
    path: /usr/local/bin/watchman
Managers:
  CocoaPods:
    version: 1.15.2
    path: /usr/local/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 23.4
      - iOS 17.4
      - macOS 14.4
      - tvOS 17.4
      - visionOS 1.1
      - watchOS 10.4
  Android SDK: Not Found
IDEs:
  Android Studio: 2023.3 AI-233.14808.21.2331.11709847
  Xcode:
    version: 15.3/15E204a
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.11
    path: /usr/bin/javac
  Ruby:
    version: 3.1.0
    path: /Users/didi/.rbenv/shims/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 19.0.0
    wanted: 19.0.0
  react:
    installed: 19.1.0
    wanted: 19.1.0
  react-native:
    installed: 0.80.1
    wanted: 0.80.1
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: true
Stacktrace or Logs
no logs
MANDATORY Reproducer

https://github.com/yandadaFreedom/reproducer-react-native-0.80.1/tree/bug-android-multi-point-event

Screenshots and Videos

No response

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  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

调研方向

从 yandadaFreedom/reproducer-react-native-0.80.1 中的必需 reproducer 开始,安装应用,并在 Android 上复现多点触控操作序列。跟踪 TouchableWithoutFeedback 和 Pressable 涉及的触摸事件处理,然后验证:第二根手指放在不相关的 View 上时,不会再次触发第一个 View;而第二根手指放在同一个 View 上时,会再次触发它。

由索引模型根据 Issue 内容生成。

评估

技术栈
android, react-native
领域
mobile
Issue 类型
缺陷
难度
4/5
预计耗时
3-5 天
活跃度
停滞
描述清晰度
基本清楚
新手友好度
35/100

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