TextInput onKeyPress fires after the onChange
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描述
Description
According to the docs the keyPress event should fire before the change event. That does not seem to be the case though, I've run into this on a physical device in a project (doesn't use expo) I can't share and also reproduced this on a online playground for react native with expo.
In the video you can see that the console.log in the onChange callback happens before the cosnole.log in the onKeyPress callback:
https://github.com/user-attachments/assets/6e5b8cd5-6452-42a7-b315-54c911933a14
Steps to reproduce
- Add the onKeyPress and onChange callbacks to a TextInput
- Trigger both events by pressing any key on a keyboard
- see that onChange triggers first
React Native Version
tested on 0.74.5 and 0.76.6
Affected Platforms
Runtime - Android
Output of npx react-native info
info Fetching system and libraries information...
System:
OS: Linux 5.10 Manjaro Linux
CPU: (8) x64 Intel(R) Core(TM) i7-10610U CPU @ 1.80GHz
Memory: 18.82 GB / 30.99 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 18.18.2
path: /usr/local/bin/node
Yarn:
version: 1.22.22
path: /usr/local/bin/yarn
npm:
version: 9.8.1
path: /usr/local/bin/npm
Watchman: Not Found
SDKs:
Android SDK: Not Found
IDEs:
Android Studio: AI-241.18034.62.2411.12169540
Languages:
Java: Not Found
Ruby:
version: 2.6.8
path: /home/owner/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli": Not Found
react:
installed: 18.3.1
wanted: 18.3.1
react-native:
installed: 0.74.5
wanted: 0.74.5
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: false
iOS:
hermesEnabled: false
newArchEnabled: false
Stacktrace or Logs
no logs to show
Reproducer
https://snack.expo.dev/@ncpa/rn-bug
Screenshots and Videos
No response
贡献指南
从这里开始
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- 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
- Fork 仓库,在一个分支上完成修改。
- 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 复现示例和 React Native TextInput 文档开始,重点关注 Android 上 onKeyPress 和 onChange 的顺序。跟踪相关的 TextInput 事件路径;如果 repository 中已有回归测试,则添加或更新该测试;当观察到的 Android 顺序与文档描述的行为一致,或文档准确反映实现时,即视为完成。
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
- 42/100