nutui-react feat(switch): loading 态受控

🤔 这个变动的性质是？

[ ] 新特性提交
[ ] 日常 bug 修复
[ ] 站点、文档改进
[ ] 演示代码改进
[ ] 组件样式/交互改进
[ ] TypeScript 定义更新
[ ] 包体积优化
[ ] 性能优化
[ ] 功能增强
[ ] 国际化改进
[ ] 重构
[ ] 代码风格优化
[ ] 测试用例
[ ] 分支合并
[ ] 其他改动（是关于什么的改动？）

🔗 相关 Issue

💡 需求背景和解决方案

☑️ 请求合并前的自查清单

⚠️ 请自检并全部勾选全部选项。⚠️

[ ] 文档已补充或无须补充
[ ] 代码演示已提供或无须提供
[ ] TypeScript 定义已补充或无须补充
[ ] fork仓库代码是否为最新避免文件冲突
[ ] Files changed 没有 package.json lock 等无关文件

Summary by CodeRabbit

新功能
- 新增 Demo8 演示组件，展示异步状态更新和交互提示效果。
- Switch 组件现支持受控 loading 状态，可通过新增属性进行加载提示控制。
文档
- 文档中新增“loading 态受控”章节，详细介绍了相关新属性和事件的使用。
- 增加中英文及繁体中文翻译，提升多语言用户体验。

Apr 03 '25 06:04 irisSong

Walkthrough

本次变更在开关组件中引入了新的 Demo8 演示组件，并增加了新翻译条目 loadingControl，用于描述受控 loading 状态。同时，更新了相关文档，对 loadingIcon、loading、onLoadingChange 等属性进行了补充说明和描述调整。开关组件内部也增加了状态变量和默认属性，以支持受控 loading 状态，并对异步交互流程进行了处理。此外，类型定义与迁移文档也相应进行了更新，确保 API 定义的一致性。

Changes

文件/文件组	变更摘要
`src/packages/switch/demo.taro.tsx` `src/packages/switch/demo.tsx`	为 `SwitchDemo` 组件增加了对 `Demo8` 的引用，并添加新翻译 `loadingControl`（中英文）以展示 loading 状态。
`src/packages/switch/demos/h5/demo8.tsx` `src/packages/switch/demos/taro/demo8.tsx`	新增 `Demo8` 组件，采用异步请求模拟延时更新开关状态，并在状态切换时展示 toast 通知。
`src/packages/switch/doc.en-US.md` `src/packages/switch/doc.md` `src/packages/switch/doc.taro.md` `src/packages/switch/doc.zh-TW.md`	文档中新增 “loading 态受控” 节，引入 demo 代码块，更新了 `loadingIcon` 属性描述，并增加了 `loading` 与 `onLoadingChange` 新属性说明。
`src/packages/switch/switch.taro.tsx` `src/packages/switch/switch.tsx`	在 Switch 组件中新增 `loading` 与 `onLoadingChange` 默认属性，调整内部状态管理逻辑，更新 `onClick` 及异步状态处理逻辑。
`src/sites/sites-react/doc/docs/react/migrate-from-v2.md` `src/sites/sites-react/doc/docs/taro/migrate-from-v2.md`	更新迁移文档，说明新增了开关组件的 `loading` 属性和 `onLoadingChange` 回调，明确 API 变化。
`src/types/spec/switch/base.ts`	为 `BaseSwitch` 接口增加了 `loading` (boolean

Sequence Diagram(s)

sequenceDiagram
  participant U as 用户
  participant D as Demo8组件
  participant M as mockRequest
  participant T as Toast

  U->>D: 切换开关状态
  D->>T: 显示加载提示
  D->>M: 发起异步请求（2秒延时）
  M-->>D: 请求完成结果
  D->>T: 更新并显示结果通知
  D->>D: 更新状态（checkedAsync / externalLoading）

Possibly related PRs

jdf2e/nutui-react#2779: 此 PR 与本次变更相关，均引入了新的 Demo8 组件，并为 SwitchDemo 组件添加了 loadingControl 翻译条目。
jdf2e/nutui-react#3122: 此 PR 与本次变更密切相关，同样引入了新的 Demo8 演示组件和 loadingControl 翻译条目，同时调整了开关组件的异步行为处理。
jdf2e/nutui-react#3143: 此 PR 涉及开关组件的异步操作和 loading 状态管理的修改，与本次变更在功能上有相关性。

Suggested reviewers

xiaoyatong
oasis-cloud

Poem

跳跃在代码田野间的我，
小兔子见证新 Demo 的出现在路上，🐰
受控 loading 状态轻轻开启，
文档清晰如晨光照亮每一步。
异步请求悄然传来温柔的回响，
更新后的组件，令代码世界更加生动。

[!TIP]

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📒 Files selected for processing (6)

src/packages/switch/demos/h5/demo8.tsx (1 hunks)
src/packages/switch/switch.taro.tsx (5 hunks)
src/packages/switch/switch.tsx (5 hunks)
src/sites/sites-react/doc/docs/react/migrate-from-v2.md (1 hunks)
src/sites/sites-react/doc/docs/react/official-theme-react.md (0 hunks)
src/sites/sites-react/doc/docs/taro/migrate-from-v2.md (1 hunks)

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src/sites/sites-react/doc/docs/react/official-theme-react.md

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src/sites/sites-react/doc/docs/taro/migrate-from-v2.md
src/sites/sites-react/doc/docs/react/migrate-from-v2.md
src/packages/switch/switch.taro.tsx
src/packages/switch/demos/h5/demo8.tsx

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src/packages/switch/switch.tsx

[warning] 50-50: src/packages/switch/switch.tsx#L50 Added line #L50 was not covered by tests

⏰ Context from checks skipped due to timeout of 90000ms (1)

GitHub Check: test

🔇 Additional comments (5)

src/packages/switch/switch.tsx (5)

14-16: 新增的默认属性设计合理

新增的 loading 和 onLoadingChange 默认属性遵循了 React 受控组件的最佳实践。将 loading 默认值设为 undefined 可以区分受控和非受控模式，而 onLoadingChange 的空函数实现避免了调用时的空值检查。

29-31: 属性解构命名规范合理

将 loading 重命名为 propLoading 是一个良好的实践，可以清晰地区分外部传入的属性和内部使用的状态变量。

45-47: 内部状态管理实现完善

针对 loading 状态的内部管理逻辑实现完善，通过条件判断 propLoading !== undefined 来区分受控和非受控模式，符合 React 组件设计模式。

72-76: 关于 loadingIcon 与 loading 状态的关联设计

当前实现中，只有在提供了 loadingIcon 的情况下才会在 onChange 回调前设置 loading 状态（第75行）。如果没有提供图标，即使异步操作正在进行，loading 状态也不会被激活。

请确认这是否是有意的设计决策。如果希望无论是否有图标都能反映异步操作的状态，可以考虑将这两个条件解耦。

100-102: 组件渲染逻辑更新合理

更新后的渲染条件 loading && loadingIcon 确保只有在组件处于加载状态且提供了加载图标时才会渲染图标，与组件的预期行为一致。

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Apr 03 '25 06:04 coderabbitai[bot]

Codecov Report

Attention: Patch coverage is 94.44444% with 1 line in your changes missing coverage. Please review.

Project coverage is 87.20%. Comparing base (794a53f) to head (fe2c80f). Report is 25 commits behind head on feat_v3.x.

Files with missing lines	Patch %	Lines
src/packages/switch/switch.tsx	94.44%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           feat_v3.x    #3149   +/-   ##
==========================================
  Coverage      87.19%   87.20%           
==========================================
  Files            279      279           
  Lines          18544    18556   +12     
  Branches        2822     2825    +3     
==========================================
+ Hits           16170    16181   +11     
- Misses          2369     2370    +1     
  Partials           5        5

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Apr 03 '25 06:04 codecov[bot]

同 switch 另外一个 pr 中的建议，可以参考，不需要增加额外状态

Apr 03 '25 07:04 oasis-cloud

feat(switch): loading 态受控

🤔 这个变动的性质是？

🔗 相关 Issue

💡 需求背景和解决方案

☑️ 请求合并前的自查清单

Summary by CodeRabbit

Walkthrough

Changes

Sequence Diagram(s)

Possibly related PRs

Suggested reviewers

Poem

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