react / react/react-native

`ScrollView` handles gestures while `PanResponder` is active

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还没有人认领这个 Issue。

API: PanResponder Component: ScrollView Help Wanted :octocat: Issue: Author Provided Repro Type: New Architecture
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描述

Description

Coming from react-native@0.73.x without new architecture the ScrollView was locked when the PanResponder was handling the drag interactions. Now in the latest react-native version (0.79.x) the ScrollView scrolls while the PanResponder is active.

Steps to reproduce
  1. In a ScrollView add a View with PanResponder.handlers
  2. Drag the View
React Native Version

0.79.3

Affected Platforms

Runtime - iOS

Output of npx @react-native-community/cli info
info Fetching system and libraries information...
System:
  OS: macOS 15.5
  CPU: (14) arm64 Apple M4 Pro
  Memory: 1.25 GB / 48.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 18.20.5
    path: ~/.nvm/versions/node/v18.20.5/bin/node
  Yarn:
    version: 1.22.22
    path: ~/.nvm/versions/node/v18.20.5/bin/yarn
  npm:
    version: 10.8.2
    path: ~/.nvm/versions/node/v18.20.5/bin/npm
  Watchman: Not Found
Managers:
  CocoaPods:
    version: 1.16.2
    path: /Users/colin/.rbenv/shims/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 24.2
      - iOS 18.2
      - macOS 15.2
      - tvOS 18.2
      - visionOS 2.2
      - watchOS 11.2
  Android SDK: Not Found
IDEs:
  Android Studio: 2024.2 AI-242.23339.11.2421.12550806
  Xcode:
    version: 16.2/16C5032a
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 21.0.3
    path: /Users/colin/.sdkman/candidates/java/current/bin/javac
  Ruby:
    version: 3.3.6
    path: /Users/colin/.rbenv/shims/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 18.0.0
    wanted: 18.0.0
  react:
    installed: 19.0.0
    wanted: 19.0.0
  react-native:
    installed: 0.79.3
    wanted: 0.79.3
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: true
Stacktrace or Logs
Running "ReproducerApp" with {"rootTag":1,"initialProps":null,"fabric":true}
MANDATORY Reproducer

https://github.com/buschco/react-native-flow/tree/pan

Screenshots and Videos

https://github.com/user-attachments/assets/dbbd1f69-4175-4a00-945d-7271e3f01312

贡献指南

打开贡献指南

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  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

从必需的 reproducer 开始,并使用列出的 React Native 0.79.3 配置复现 iOS 行为。跟踪拖动期间 ScrollView 与 PanResponder 之间的交互,并将其与报告的 0.73.x 行为进行比较。完成标准是:在 PanResponder 处理 gesture 时,ScrollView 保持锁定,并且有一个覆盖该情况的 regression test。

由索引模型根据 Issue 内容生成。

评估

技术栈
react-native
领域
mobile
Issue 类型
缺陷
难度
4/5
预计耗时
3-5 天
活跃度
冷清
描述清晰度
基本清楚
新手友好度
48/100

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