ant-design/components/affix/index.zh-CN.md

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---
category: Components
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title: Affix
subtitle: 固钉
cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*YSm4RI3iOJ8AAAAAAAAAAAAADrJ8AQ/original
coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*03dxS64LxeQAAAAAAAAAAAAADrJ8AQ/original
docs: v5 site upgrade (#38328) * build: try to use dumi as doc tool * docs: migrate demo structure to dumi way * refactor: use type export & import * docs: migrate demo previewer to dumi * docs: create empty layout & components * docs: apply custom rehype plugin * docs: create empty extra pages * docs: Add Banner component * chore: move theme tsconfig.json * docs: home page init * docs: migrate header (#37896) * docs: header * docs: update * docs: home init * clean up * test: fix site lint * chore: tsc ignore demo * chore: dumi demo migrate script * chore: cards * docs: home layout * docs: Update locale logic * docs: fix getLink logic * chore: fix ci (#37899) * chore: fix ci * ci: remove check-ts-demo * ci: preview build * test: ignore demo.tsx * chore: update script * test: update snapshot * test: update node and image test * chore: add .surgeignore * docs: layout providers (#37908) * docs: add components sidebar (#37923) * docs: sidebar * docs: update docs title * docs: update design doc * chore: code clean * docs: handle changelog page * docs: add title * docs: add subtitle * docs: active header nav * chore: code clean * docs: overview * chore: code clean * docs: update intl (#37918) * docs: update intl * chore: code clean * docs: update favicons * chore: update testPathIgnorePatterns * chore: code clean * chore: code clean * chore: copy 404.html (#37996) * docs: Home page theme picker * chore: Update migrate script * docs: home page update * docs: theme editor style * docs: theme lang * chore: update migrate.js * docs: fix demo (#38094) * chore: update migrate.js * docs: update md * docs: update demo * test: fix snapshot * chore: move debug to code attr in migrate script * chore: update md Co-authored-by: PeachScript <scdzwyxst@gmail.com> * feat: overview page * feat: Migrate `404` page (#38118) * feat: migrate IconSearch component (#37916) * feat<site/IconSearch>: copy IconDisplay from site to .dumi * feat<site/IconSearch>: change docs of icon * feat<site/IconSearch>: tweak * feat<site/IconSearch>: use useIntl instead of injectIntl * feat<site/IconSearch>: fix ts type error * feat<site/IconSearch>: use intl.formatMessage to render text * docs: Adjust home btn sizw * docs: Update doc * feat: v5 site overview page (#38131) * feat: site * fix: fix * feat: v5 site overview page * fix: fix path * fix: fix * fix: fix * docs: fix margin logic * feat: v5 site change-log page (#38137) * feat: v5 site change-log page (#38162) * docs: site redirect to home pag * docs: theme picker * docs: use react-intl from dumi (#38183) * docs: Theme Picker * docs: update dumi config * docs: home back fix * docs: picker colorful * docs: locale of it * docs: update components desc * docs: site of links * docs: update components list * docs: update desc * feat: Migrate `DemoWrapper` component (#38166) * feat: Migrate `DemoWrapper` component * feat: remove invalid comments and add comment for `key` prop * docs: FloatButton pure panel * chore: update demo * chore: update dumi config * Revert "chore: update demo" This reverts commit 028265d3ba5987df5f13c3e9d42cf76cb1812b2e. * chore: test logic adjust to support cnpm modules * chore: add locale alias * docs: /index to / * docs: add locale redirect head script * chore: adjust compact * docs: fix missing token * feat: compact switch * chore: code clean * docs: update home * docs: fix radius token * docs: hash of it * chore: adjust home page * docs: Add background map * docs: site theme bac logic * docs: avatar * docs: update logo color * docs: home banner * docs: adjust tour size * docs: purepanl update * docs: transfooter * docs: update banner gif * docs: content (#38361) * docs: title & EditButton * docs: content * chore: fix toc * docs: resource page * docs: transform resource data from hast * docs: filename & Resource Card * chore: enable prerender * chore: remove less * docs: toc style * chore: fix lint * docs: fix Layout page * docs: fix CP page * chore: update demos * docs: workaround for export dynamic html * chore: enable demo eslint * docs: table style * fix: header shadow * chore: update snapshot * fix: toc style * docs: add title * docs: Adjust site * feat: helmet * docs: site css * fix: description * feat: toc debug * docs: update config-provider * feat: use colorPanel * fix: colorPanel value * feat: anchor ink ball style * feat: apply theme editor * fix: code block style * chore: update demo * chore: fix lint * chore: code clean * chore: update snapshot * feat: ts2js * chore: description * docs: site ready for ssr includes: - move client render logic to useEffect in site theme - extract antd cssinjs to a single css file like bisheng - workaround to support react@18 pipeableStream for emotion * chore: bump testing lib * docs: font size of title * chore: remove react-sortable-hoc * chore: update snapshot * chore: update script Co-authored-by: PeachScript <scdzwyxst@gmail.com> Co-authored-by: MadCcc <1075746765@qq.com> Co-authored-by: zqran <uuxnet@gmail.com> Co-authored-by: TrickyPi <530257315@qq.com> Co-authored-by: lijianan <574980606@qq.com>
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demo:
cols: 2
group:
title: 其他
order: 7
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---
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将页面元素钉在可视范围。
## 何时使用
当内容区域比较长,需要滚动页面时,这部分内容对应的操作或者导航需要在滚动范围内始终展现。常用于侧边菜单和按钮组合。
页面可视范围过小时,慎用此功能以免遮挡页面内容。
docs: v5 site upgrade (#38328) * build: try to use dumi as doc tool * docs: migrate demo structure to dumi way * refactor: use type export & import * docs: migrate demo previewer to dumi * docs: create empty layout & components * docs: apply custom rehype plugin * docs: create empty extra pages * docs: Add Banner component * chore: move theme tsconfig.json * docs: home page init * docs: migrate header (#37896) * docs: header * docs: update * docs: home init * clean up * test: fix site lint * chore: tsc ignore demo * chore: dumi demo migrate script * chore: cards * docs: home layout * docs: Update locale logic * docs: fix getLink logic * chore: fix ci (#37899) * chore: fix ci * ci: remove check-ts-demo * ci: preview build * test: ignore demo.tsx * chore: update script * test: update snapshot * test: update node and image test * chore: add .surgeignore * docs: layout providers (#37908) * docs: add components sidebar (#37923) * docs: sidebar * docs: update docs title * docs: update design doc * chore: code clean * docs: handle changelog page * docs: add title * docs: add subtitle * docs: active header nav * chore: code clean * docs: overview * chore: code clean * docs: update intl (#37918) * docs: update intl * chore: code clean * docs: update favicons * chore: update testPathIgnorePatterns * chore: code clean * chore: code clean * chore: copy 404.html (#37996) * docs: Home page theme picker * chore: Update migrate script * docs: home page update * docs: theme editor style * docs: theme lang * chore: update migrate.js * docs: fix demo (#38094) * chore: update migrate.js * docs: update md * docs: update demo * test: fix snapshot * chore: move debug to code attr in migrate script * chore: update md Co-authored-by: PeachScript <scdzwyxst@gmail.com> * feat: overview page * feat: Migrate `404` page (#38118) * feat: migrate IconSearch component (#37916) * feat<site/IconSearch>: copy IconDisplay from site to .dumi * feat<site/IconSearch>: change docs of icon * feat<site/IconSearch>: tweak * feat<site/IconSearch>: use useIntl instead of injectIntl * feat<site/IconSearch>: fix ts type error * feat<site/IconSearch>: use intl.formatMessage to render text * docs: Adjust home btn sizw * docs: Update doc * feat: v5 site overview page (#38131) * feat: site * fix: fix * feat: v5 site overview page * fix: fix path * fix: fix * fix: fix * docs: fix margin logic * feat: v5 site change-log page (#38137) * feat: v5 site change-log page (#38162) * docs: site redirect to home pag * docs: theme picker * docs: use react-intl from dumi (#38183) * docs: Theme Picker * docs: update dumi config * docs: home back fix * docs: picker colorful * docs: locale of it * docs: update components desc * docs: site of links * docs: update components list * docs: update desc * feat: Migrate `DemoWrapper` component (#38166) * feat: Migrate `DemoWrapper` component * feat: remove invalid comments and add comment for `key` prop * docs: FloatButton pure panel * chore: update demo * chore: update dumi config * Revert "chore: update demo" This reverts commit 028265d3ba5987df5f13c3e9d42cf76cb1812b2e. * chore: test logic adjust to support cnpm modules * chore: add locale alias * docs: /index to / * docs: add locale redirect head script * chore: adjust compact * docs: fix missing token * feat: compact switch * chore: code clean * docs: update home * docs: fix radius token * docs: hash of it * chore: adjust home page * docs: Add background map * docs: site theme bac logic * docs: avatar * docs: update logo color * docs: home banner * docs: adjust tour size * docs: purepanl update * docs: transfooter * docs: update banner gif * docs: content (#38361) * docs: title & EditButton * docs: content * chore: fix toc * docs: resource page * docs: transform resource data from hast * docs: filename & Resource Card * chore: enable prerender * chore: remove less * docs: toc style * chore: fix lint * docs: fix Layout page * docs: fix CP page * chore: update demos * docs: workaround for export dynamic html * chore: enable demo eslint * docs: table style * fix: header shadow * chore: update snapshot * fix: toc style * docs: add title * docs: Adjust site * feat: helmet * docs: site css * fix: description * feat: toc debug * docs: update config-provider * feat: use colorPanel * fix: colorPanel value * feat: anchor ink ball style * feat: apply theme editor * fix: code block style * chore: update demo * chore: fix lint * chore: code clean * chore: update snapshot * feat: ts2js * chore: description * docs: site ready for ssr includes: - move client render logic to useEffect in site theme - extract antd cssinjs to a single css file like bisheng - workaround to support react@18 pipeableStream for emotion * chore: bump testing lib * docs: font size of title * chore: remove react-sortable-hoc * chore: update snapshot * chore: update script Co-authored-by: PeachScript <scdzwyxst@gmail.com> Co-authored-by: MadCcc <1075746765@qq.com> Co-authored-by: zqran <uuxnet@gmail.com> Co-authored-by: TrickyPi <530257315@qq.com> Co-authored-by: lijianan <574980606@qq.com>
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## 代码演示
<!-- prettier-ignore -->
docs: v5 site upgrade (#38328) * build: try to use dumi as doc tool * docs: migrate demo structure to dumi way * refactor: use type export & import * docs: migrate demo previewer to dumi * docs: create empty layout & components * docs: apply custom rehype plugin * docs: create empty extra pages * docs: Add Banner component * chore: move theme tsconfig.json * docs: home page init * docs: migrate header (#37896) * docs: header * docs: update * docs: home init * clean up * test: fix site lint * chore: tsc ignore demo * chore: dumi demo migrate script * chore: cards * docs: home layout * docs: Update locale logic * docs: fix getLink logic * chore: fix ci (#37899) * chore: fix ci * ci: remove check-ts-demo * ci: preview build * test: ignore demo.tsx * chore: update script * test: update snapshot * test: update node and image test * chore: add .surgeignore * docs: layout providers (#37908) * docs: add components sidebar (#37923) * docs: sidebar * docs: update docs title * docs: update design doc * chore: code clean * docs: handle changelog page * docs: add title * docs: add subtitle * docs: active header nav * chore: code clean * docs: overview * chore: code clean * docs: update intl (#37918) * docs: update intl * chore: code clean * docs: update favicons * chore: update testPathIgnorePatterns * chore: code clean * chore: code clean * chore: copy 404.html (#37996) * docs: Home page theme picker * chore: Update migrate script * docs: home page update * docs: theme editor style * docs: theme lang * chore: update migrate.js * docs: fix demo (#38094) * chore: update migrate.js * docs: update md * docs: update demo * test: fix snapshot * chore: move debug to code attr in migrate script * chore: update md Co-authored-by: PeachScript <scdzwyxst@gmail.com> * feat: overview page * feat: Migrate `404` page (#38118) * feat: migrate IconSearch component (#37916) * feat<site/IconSearch>: copy IconDisplay from site to .dumi * feat<site/IconSearch>: change docs of icon * feat<site/IconSearch>: tweak * feat<site/IconSearch>: use useIntl instead of injectIntl * feat<site/IconSearch>: fix ts type error * feat<site/IconSearch>: use intl.formatMessage to render text * docs: Adjust home btn sizw * docs: Update doc * feat: v5 site overview page (#38131) * feat: site * fix: fix * feat: v5 site overview page * fix: fix path * fix: fix * fix: fix * docs: fix margin logic * feat: v5 site change-log page (#38137) * feat: v5 site change-log page (#38162) * docs: site redirect to home pag * docs: theme picker * docs: use react-intl from dumi (#38183) * docs: Theme Picker * docs: update dumi config * docs: home back fix * docs: picker colorful * docs: locale of it * docs: update components desc * docs: site of links * docs: update components list * docs: update desc * feat: Migrate `DemoWrapper` component (#38166) * feat: Migrate `DemoWrapper` component * feat: remove invalid comments and add comment for `key` prop * docs: FloatButton pure panel * chore: update demo * chore: update dumi config * Revert "chore: update demo" This reverts commit 028265d3ba5987df5f13c3e9d42cf76cb1812b2e. * chore: test logic adjust to support cnpm modules * chore: add locale alias * docs: /index to / * docs: add locale redirect head script * chore: adjust compact * docs: fix missing token * feat: compact switch * chore: code clean * docs: update home * docs: fix radius token * docs: hash of it * chore: adjust home page * docs: Add background map * docs: site theme bac logic * docs: avatar * docs: update logo color * docs: home banner * docs: adjust tour size * docs: purepanl update * docs: transfooter * docs: update banner gif * docs: content (#38361) * docs: title & EditButton * docs: content * chore: fix toc * docs: resource page * docs: transform resource data from hast * docs: filename & Resource Card * chore: enable prerender * chore: remove less * docs: toc style * chore: fix lint * docs: fix Layout page * docs: fix CP page * chore: update demos * docs: workaround for export dynamic html * chore: enable demo eslint * docs: table style * fix: header shadow * chore: update snapshot * fix: toc style * docs: add title * docs: Adjust site * feat: helmet * docs: site css * fix: description * feat: toc debug * docs: update config-provider * feat: use colorPanel * fix: colorPanel value * feat: anchor ink ball style * feat: apply theme editor * fix: code block style * chore: update demo * chore: fix lint * chore: code clean * chore: update snapshot * feat: ts2js * chore: description * docs: site ready for ssr includes: - move client render logic to useEffect in site theme - extract antd cssinjs to a single css file like bisheng - workaround to support react@18 pipeableStream for emotion * chore: bump testing lib * docs: font size of title * chore: remove react-sortable-hoc * chore: update snapshot * chore: update script Co-authored-by: PeachScript <scdzwyxst@gmail.com> Co-authored-by: MadCcc <1075746765@qq.com> Co-authored-by: zqran <uuxnet@gmail.com> Co-authored-by: TrickyPi <530257315@qq.com> Co-authored-by: lijianan <574980606@qq.com>
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<code src="./demo/basic.tsx">基本</code>
<code src="./demo/on-change.tsx">固定状态改变的回调</code>
<code src="./demo/target.tsx">滚动容器</code>
<code src="./demo/debug.tsx" debug>调整浏览器大小,观察 Affix 容器是否发生变化。跟随变化为正常。#17678</code>
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## API
| 成员 | 说明 | 类型 | 默认值 |
| --- | --- | --- | --- |
| offsetBottom | 距离窗口底部达到指定偏移量后触发 | number | - |
| offsetTop | 距离窗口顶部达到指定偏移量后触发 | number | 0 |
| target | 设置 `Affix` 需要监听其滚动事件的元素,值为一个返回对应 DOM 元素的函数 | () => HTMLElement | () => window |
| onChange | 固定状态改变时触发的回调函数 | (affixed?: boolean) => void | - |
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**注意:**`Affix` 内的元素不要使用绝对定位,如需要绝对定位的效果,可以直接设置 `Affix` 为绝对定位:
```jsx
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<Affix style={{ position: 'absolute', top: y, left: x }}>...</Affix>
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```
## FAQ
### Affix 使用 `target` 绑定容器时,元素会跑到容器外。
从性能角度考虑,我们只监听容器滚动事件。如果希望任意滚动,你可以在窗体添加滚动监听:<https://codesandbox.io/s/2xyj5zr85p>
相关 issue[#3938](https://github.com/ant-design/ant-design/issues/3938) [#5642](https://github.com/ant-design/ant-design/issues/5642) [#16120](https://github.com/ant-design/ant-design/issues/16120)
### Affix 在水平滚动容器中使用时, 元素 `left` 位置不正确。
Affix 一般只适用于单向滚动的区域,只支持在垂直滚动容器中使用。如果希望在水平容器中使用,你可以考虑使用 原生 `position: sticky` 实现。
相关 issue: [#29108](https://github.com/ant-design/ant-design/issues/29108)