45 lines
1.6 KiB
Markdown
45 lines
1.6 KiB
Markdown
---
|
||
category: Components
|
||
type: Navigation
|
||
title: Affix
|
||
cover: https://gw.alipayobjects.com/zos/alicdn/tX6-md4H6/Affix.svg
|
||
---
|
||
|
||
Wrap Affix around another component to make it stick the viewport.
|
||
|
||
## When To Use
|
||
|
||
On longer web pages, its helpful for some content to stick to 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.
|
||
|
||
## API
|
||
|
||
| Property | Description | Type | Default | Version |
|
||
| --- | --- | --- | --- | --- |
|
||
| 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 | |
|
||
|
||
### events
|
||
|
||
| Events Name | Description | Arguments | Version |
|
||
| ----------- | ---------------------------------------- | ----------------- | ------- |
|
||
| change | Callback for when Affix state is changed | Function(affixed) |
|
||
|
||
**Note:** Children of `Affix` must not have the property `position: absolute`, but you can set `position: absolute` on `Affix` itself:
|
||
|
||
```html
|
||
<a-affix :style="{ position: 'absolute', top: y, left: x}">
|
||
...
|
||
</a-affix>
|
||
```
|
||
|
||
## FAQ
|
||
|
||
### Affix bind container with `target`, sometime move out of container.
|
||
|
||
We don't listen window scroll for performance consideration.
|
||
|
||
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)
|