mirror of
https://github.com/ant-design/ant-design.git
synced 2024-12-12 23:35:38 +08:00
62 lines
2.6 KiB
Markdown
62 lines
2.6 KiB
Markdown
---
|
||
category: Components
|
||
title: Affix
|
||
description: Stick an element to the viewport.
|
||
cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*YSm4RI3iOJ8AAAAAAAAAAAAADrJ8AQ/original
|
||
coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*03dxS64LxeQAAAAAAAAAAAAADrJ8AQ/original
|
||
demo:
|
||
cols: 2
|
||
group:
|
||
title: Other
|
||
order: 7
|
||
---
|
||
|
||
## When To Use
|
||
|
||
On longer web pages, it's helpful to stick component into the viewport. This is common for menus and actions.
|
||
|
||
Please note that Affix should not cover other content on the page, especially when the size of the viewport is small.
|
||
|
||
> Notes for developers
|
||
>
|
||
> After version `5.10.0`, we rewrite Affix use FC, Some methods of obtaining `ref` and calling internal instance methods will invalid.
|
||
|
||
## Examples
|
||
|
||
<!-- prettier-ignore -->
|
||
<code src="./demo/basic.tsx">Basic</code>
|
||
<code src="./demo/on-change.tsx">Callback</code>
|
||
<code src="./demo/target.tsx">Container to scroll.</code>
|
||
<code src="./demo/debug.tsx" debug>debug</code>
|
||
|
||
## API
|
||
|
||
Common props ref：[Common props](/docs/react/common-props)
|
||
|
||
| Property | Description | Type | Default |
|
||
| --- | --- | --- | --- |
|
||
| offsetBottom | Offset from the bottom of the viewport (in pixels) | number | - |
|
||
| offsetTop | Offset from the top of the viewport (in pixels) | number | 0 |
|
||
| target | Specifies the scrollable area DOM node | () => HTMLElement | () => window |
|
||
| onChange | Callback for when Affix state is changed | (affixed?: boolean) => void | - |
|
||
|
||
**Note:** Children of `Affix` must not have the property `position: absolute`, but you can set `position: absolute` on `Affix` itself:
|
||
|
||
```jsx
|
||
<Affix style={{ position: 'absolute', top: y, left: x }}>...</Affix>
|
||
```
|
||
|
||
## FAQ
|
||
|
||
### When binding container with `target` in Affix, elements sometimes move out of the container.
|
||
|
||
We only listen to container scroll events for performance consideration. You can add custom listeners if you still want to: <https://codesandbox.io/s/stupefied-maxwell-ophqnm?file=/index.js>
|
||
|
||
Related issues：[#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)
|
||
|
||
### When Affix is used in a horizontal scroll container, the position of the element `left` is incorrect.
|
||
|
||
Affix is generally only applicable to areas with one-way scrolling, and only supports usage in vertical scrolling containers. If you want to use it in a horizontal container, you can consider implementing with the native `position: sticky` property.
|
||
|
||
Related issues：[#29108](https://github.com/ant-design/ant-design/issues/29108)
|