react / react/react-native

Animated.FlatList prop contentContainerStyle doesn't handle animated values

未关闭
#32,192 4 条评论 3 个 reaction 已指派 0 人 在 GitHub 查看

还没有人认领这个 Issue。

Needs: Triage :mag: Never gets stale
主要语言
C++
星标
127k
派生
25.3k
平均合并
1 天 23 小时
30 天内合并 PR
4

描述

Description

As I noted in the heading, the Animated.FlatList component does not accept animated values for the contentContainerStyle property. It only seems to work for style.
This is not the behaviour one would expect from an animated component and should be changed.

React Native version:

System:
    OS: macOS 11.5.2
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 196.01 MB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 14.17.6 - /usr/local/opt/node@14/bin/node
    Yarn: 1.22.11 - /usr/local/bin/yarn
    npm: 6.14.15 - /usr/local/opt/node@14/bin/npm
    Watchman: 2021.09.06.00 - /usr/local/bin/watchman
  Managers:
    CocoaPods: 1.10.2 - /usr/local/bin/pod
  SDKs:
    iOS SDK:
      Platforms: iOS 14.5, DriverKit 20.4, macOS 11.3, tvOS 14.5, watchOS 7.4
    Android SDK:
      API Levels: 28, 29, 30, 31
      Build Tools: 29.0.2, 30.0.2, 31.0.0
      System Images: android-30 | Google APIs Intel x86 Atom, android-30 | Google Play Intel x86 Atom
      Android NDK: Not Found
  IDEs:
    Android Studio: Arctic Fox 2020.3.1 Arctic Fox 2020.3.1
    Xcode: 12.5.1/12E507 - /usr/bin/xcodebuild
  Languages:
    Java: 1.8.0_292 - /usr/bin/javac
  npmPackages:
    @react-native-community/cli: Not Found
    react: 17.0.2 => 17.0.2 
    react-native: 0.65.1 => 0.65.1 
    react-native-macos: Not Found
  npmGlobalPackages:
    *react-native*: Not Found

Steps To Reproduce

Provide a detailed list of steps that reproduce the issue.

  1. Add Animated.FlatList with some sample data to your app
  2. Try to pass an animated value to contentContainerStyle

Expected Results

I would expect this to work with one of the animated components, but instead the screen freezes.

Snack, code example, screenshot, or link to a repository:

https://snack.expo.dev/@reichhartd/animated_flatlist-example

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

从链接的 Snack 复现开始,检查 Animated.FlatList 入口点,重点关注 contentContainerStyle 与 style 的差异。确认动画值会导致屏幕冻结,然后验证在同一示例中 contentContainerStyle 接受动画值时不会冻结。

由索引模型根据 Issue 内容生成。

评估

技术栈
javascript, react-native
领域
mobile-dev
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

把新 issue 发到你的邮箱

精选适合新手参与的 GitHub issue 摘要。