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146 lines
7.6 KiB
Markdown
146 lines
7.6 KiB
Markdown
---
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category: Components
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group: Feedback
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noinstant: true
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title: Notification
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description: Prompt notification message globally.
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cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*cRmqTY4nKPEAAAAAAAAAAAAADrJ8AQ/original
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coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*W3RmSov-xVMAAAAAAAAAAAAADrJ8AQ/original
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demo:
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cols: 2
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---
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## When To Use
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To display a notification message at any of the four corners of the viewport. Typically it can be used in the following cases:
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- A notification with complex content.
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- 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.
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- A notification that is pushed by the application.
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## Examples
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<!-- prettier-ignore -->
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<code src="./demo/hooks.tsx">Hooks usage (recommended)</code>
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<code src="./demo/duration.tsx">Duration after which the notification box is closed</code>
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<code src="./demo/with-icon.tsx">Notification with icon</code>
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<code src="./demo/with-btn.tsx">Custom close button</code>
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<code src="./demo/custom-icon.tsx">Customized Icon</code>
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<code src="./demo/placement.tsx">Placement</code>
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<code src="./demo/custom-style.tsx">Customized style</code>
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<code src="./demo/update.tsx">Update Message Content</code>
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<code src="./demo/stack.tsx" version="5.10.0">Stack</code>
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<code src="./demo/basic.tsx">Static Method (deprecated)</code>
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<code src="./demo/render-panel.tsx" debug>_InternalPanelDoNotUseOrYouWillBeFired</code>
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## API
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Common props ref:[Common props](/docs/react/common-props)
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- `notification.success(config)`
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- `notification.error(config)`
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- `notification.info(config)`
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- `notification.warning(config)`
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- `notification.open(config)`
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- `notification.destroy(key?: String)`
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The properties of config are as follows:
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| btn | Customized close button | ReactNode | - | - |
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| className | Customized CSS class | string | - | - |
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| closeIcon | Custom close icon | ReactNode | true | 5.7.0: close button will be hidden when setting to null or false |
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| description | The content of notification box (required) | ReactNode | - | - |
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| duration | Time in seconds before Notification is closed. When set to 0 or null, it will never be closed automatically | number | 4.5 | - |
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| icon | Customized icon | ReactNode | - | - |
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| key | The unique identifier of the Notification | string | - | - |
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| message | The title of notification box (required) | ReactNode | - | - |
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| placement | Position of Notification, can be one of `top` `topLeft` `topRight` `bottom` `bottomLeft` `bottomRight` | string | `topRight` | - |
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| style | Customized inline style | [CSSProperties](https://github.com/DefinitelyTyped/DefinitelyTyped/blob/e434515761b36830c3e58a970abf5186f005adac/types/react/index.d.ts#L794) | - | - |
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| role | The semantics of notification content recognized by screen readers. The default value is `alert`. When set as the default value, the screen reader will promptly interrupt any ongoing content reading and prioritize the notification content for immediate attention. | `alert \| status` | `alert` | 5.6.0 |
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| onClick | Specify a function that will be called when the notification is clicked | function | - | - |
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| onClose | Trigger when notification closed | function | - | - |
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| props | An object that can contain `data-*`, `aria-*`, or `role` props, to be put on the notification `div`. This currently only allows `data-testid` instead of `data-*` in TypeScript. See https://github.com/microsoft/TypeScript/issues/28960. | Object | - | - |
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- `notification.useNotification(config)`
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The properties of config are as follows:
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| bottom | Distance from the bottom of the viewport, when `placement` is `bottom` `bottomRight` or `bottomLeft` (unit: pixels) | number | 24 | |
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| closeIcon | Custom close icon | ReactNode | true | 5.7.0: close button will be hidden when setting to null or false |
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| getContainer | Return the mount node for Notification | () => HTMLNode | () => document.body | |
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| placement | Position of Notification, can be one of `top` `topLeft` `topRight` `bottom` `bottomLeft` `bottomRight` | string | `topRight` | |
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| rtl | Whether to enable RTL mode | boolean | false | |
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| stack | Notifications will be stacked when amount is over threshold | boolean \| `{ threshold: number }` | `{ threshold: 3 }` | 5.10.0 |
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| top | Distance from the top of the viewport, when `placement` is `top` `topRight` or `topLeft` (unit: pixels) | number | 24 | |
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| maxCount | Max Notification show, drop oldest if exceed limit | number | - | 4.17.0 |
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`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.
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### Global configuration
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`notification.config(options)`
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> When you use `ConfigProvider` for global configuration, the system will automatically start RTL mode by default.(4.3.0+)
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>
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> When you want to use it alone, you can start the RTL mode through the following settings.
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#### notification.config
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```js
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notification.config({
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placement: 'bottomRight',
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bottom: 50,
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duration: 3,
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rtl: true,
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});
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```
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| bottom | Distance from the bottom of the viewport, when `placement` is `bottom` `bottomRight` or `bottomLeft` (unit: pixels) | number | 24 | |
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| closeIcon | Custom close icon | ReactNode | true | 5.7.0: close button will be hidden when setting to null or false |
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| duration | Time in seconds before Notification is closed. When set to 0 or null, it will never be closed automatically | number | 4.5 | |
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| getContainer | Return the mount node for Notification, but still display at fullScreen | () => HTMLNode | () => document.body | |
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| placement | Position of Notification, can be one of `top` `topLeft` `topRight` `bottom` `bottomLeft` `bottomRight` | string | `topRight` | |
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| rtl | Whether to enable RTL mode | boolean | false | |
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| top | Distance from the top of the viewport, when `placement` is `top` `topRight` or `topLeft` (unit: pixels) | number | 24 | |
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| maxCount | Max Notification show, drop oldest if exceed limit | number | - | 4.17.0 |
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## Design Token
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<ComponentTokenTable component="Notification"></ComponentTokenTable>
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## FAQ
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### Why I can not access context, redux, ConfigProvider `locale/prefixCls/theme` in notification?
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antd will dynamic create React instance by `ReactDOM.render` when call notification methods. Whose context is different with origin code located context.
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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:
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```tsx
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const [api, contextHolder] = notification.useNotification();
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return (
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<Context1.Provider value="Ant">
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{/* contextHolder is inside Context1 which means api will get value of Context1 */}
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{contextHolder}
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<Context2.Provider value="Design">
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{/* contextHolder is outside Context2 which means api will **not** get value of Context2 */}
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</Context2.Provider>
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</Context1.Provider>
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);
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```
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**Note:** You must insert `contextHolder` into your children with hooks. You can use origin method if you do not need context connection.
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> [App Package Component](/components/app) can be used to simplify the problem of `useNotification` and other methods that need to manually implant contextHolder.
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### How to set static methods prefixCls ?
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You can config with [`ConfigProvider.config`](/components/config-provider#configproviderconfig-4130)
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