ant-design/components/notification/index.en-US.md
二货机器人 2341a25d91
feat: refactor useNotification (#35423)
* more refactor

* chore: motion support

* chore: tmp test

* test: Hooks

* chore: static function

* tmp of it

* all of it

* mv prefix

* chore: clean up

* chore: clean up

* more test case

* test: all base test

* test: all test case

* init

* refactor: rm notification.open instance related code

* follow up

* refactor: singlton

* test: notification test case

* refactor to destroy

* refactor: message base

* test: part test case

* test: more

* test: more

* test: all test

* chore: clean up

* docs: reorder

* chore: fix lint

* test: fix test case

* chore: add act

* chore: back

* chore: fix style

* test: notification test

* test: more and more

* test: fix more test

* test: index

* test: more & more

* test: fix placement

* test: fix coverage

* chore: clean up

* chore: bundle size

* fix: 17

* chore: more

* test: message

* test: more test

* fix: lint

* test: rm class in static

* chore: clean up

* test: coverage

* chore: fix lint
2022-05-11 14:26:18 +08:00

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---
category: Components
type: Feedback
noinstant: true
title: Notification
cover: https://gw.alipayobjects.com/zos/alicdn/Jxm5nw61w/Notification.svg
---
Display a notification message globally.
## When To Use
To display a notification message at any of the four corners of the viewport. Typically it can be used in the following cases:
- A notification with complex content.
- A notification providing a feedback based on the user interaction. Or it may show some details about upcoming steps the user may have to follow.
- A notification that is pushed by the application.
## API
- `notification.success(config)`
- `notification.error(config)`
- `notification.info(config)`
- `notification.warning(config)`
- `notification.warn(config)`
- `notification.open(config)`
- `notification.destroy(key?: String)`
The properties of config are as follows:
| Property | Description | Type | Default |
| --- | --- | --- | --- |
| bottom | Distance from the bottom of the viewport, when `placement` is `bottomRight` or `bottomLeft` (unit: pixels) | number | 24 |
| btn | Customized close button | ReactNode | - |
| className | Customized CSS class | string | - |
| closeIcon | Custom close icon | ReactNode | - |
| description | The content of notification box (required) | ReactNode | - |
| duration | Time in seconds before Notification is closed. When set to 0 or null, it will never be closed automatically | number | 4.5 |
| getContainer | Return the mount node for Notification | () => HTMLNode | () => document.body |
| icon | Customized icon | ReactNode | - |
| key | The unique identifier of the Notification | string | - |
| message | The title of notification box (required) | ReactNode | - |
| placement | Position of Notification, can be one of `topLeft` `topRight` `bottomLeft` `bottomRight` | string | `topRight` |
| style | Customized inline style | [CSSProperties](https://github.com/DefinitelyTyped/DefinitelyTyped/blob/e434515761b36830c3e58a970abf5186f005adac/types/react/index.d.ts#L794) | - |
| top | Distance from the top of the viewport, when `placement` is `topRight` or `topLeft` (unit: pixels) | number | 24 |
| onClick | Specify a function that will be called when the notification is clicked | function | - |
| onClose | Trigger when notification closed | function | - |
`notification` also provides a global `config()` method that can be used for specifying the default options. Once this method is used, all the notification boxes will take into account these globally defined options when displaying.
- `notification.config(options)`
> When you use `ConfigProvider` for global configuration, the system will automatically start RTL mode by default.(4.3.0+)
>
> When you want to use it alone, you can start the RTL mode through the following settings.
```js
notification.config({
placement: 'bottomRight',
bottom: 50,
duration: 3,
rtl: true,
});
```
| Property | Description | Type | Default | Version |
| --- | --- | --- | --- | --- |
| bottom | Distance from the bottom of the viewport, when `placement` is `bottomRight` or `bottomLeft` (unit: pixels) | number | 24 | |
| closeIcon | Custom close icon | ReactNode | - | |
| duration | Time in seconds before Notification is closed. When set to 0 or null, it will never be closed automatically | number | 4.5 | |
| getContainer | Return the mount node for Notification | () => HTMLNode | () => document.body | |
| placement | Position of Notification, can be one of `topLeft` `topRight` `bottomLeft` `bottomRight` | string | `topRight` | |
| rtl | Whether to enable RTL mode | boolean | false | |
| top | Distance from the top of the viewport, when `placement` is `topRight` or `topLeft` (unit: pixels) | number | 24 | |
| maxCount | Max Notification show, drop oldest if exceed limit | number | - | 4.17.0 |
## FAQ
### Why I can not access context, redux, ConfigProvider `locale/prefixCls` in notification?
antd will dynamic create React instance by `ReactDOM.render` when call notification methods. Whose context is different with origin code located context.
When you need context info (like ConfigProvider context), you can use `notification.useNotification` to get `api` instance and `contextHolder` node. And put it in your children:
```tsx
const [api, contextHolder] = notification.useNotification();
return (
<Context1.Provider value="Ant">
{/* contextHolder is inside Context1 which means api will get value of Context1 */}
{contextHolder}
<Context2.Provider value="Design">
{/* contextHolder is outside Context2 which means api will **not** get value of Context2 */}
</Context2.Provider>
</Context1.Provider>
);
```
**Note:** You must insert `contextHolder` into your children with hooks. You can use origin method if you do not need context connection.
### How to set static methods prefixCls
You can config with [`ConfigProvider.config`](</components/config-provider/#ConfigProvider.config()-4.13.0+>)