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147 lines
3.6 KiB
Markdown
147 lines
3.6 KiB
Markdown
---
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category: Components
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group: Other
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title: App
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description: Application wrapper for some global usages.
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cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*HJz8SZos2wgAAAAAAAAAAAAADrJ8AQ/original
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coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*oC92TK44Ex8AAAAAAAAAAAAADrJ8AQ/original
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demo:
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cols: 2
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tag: 5.1.0
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---
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## When To Use
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- Provide reset styles based on `.ant-app` element.
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- You could use static methods of `message/notification/Modal` from `useApp` without writing `contextHolder` manually.
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## Examples
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<!-- prettier-ignore -->
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<code src="./demo/basic.tsx">Basic</code>
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<code src="./demo/config.tsx">Hooks config</code>
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## How to use
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### Basic usage
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App provides upstream and downstream method calls through `Context`, because useApp needs to be used as a subcomponent, we recommend encapsulating App at the top level in the application.
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```tsx
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import React from 'react';
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import { App } from 'antd';
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const MyPage: React.FC = () => {
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const { message, notification, modal } = App.useApp();
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message.success('Good!');
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notification.info({ message: 'Good' });
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modal.warning({ title: 'Good' });
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// ....
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// other message, notification, modal static function
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return <div>Hello word</div>;
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};
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const MyApp: React.FC = () => (
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<App>
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<MyPage />
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</App>
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);
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export default MyApp;
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```
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Note: App.useApp must be available under App.
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### Sequence with ConfigProvider
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The App component can only use the token in the `ConfigProvider`, if you need to use the Token, the ConfigProvider and the App component must appear in pairs.
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```tsx
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<ConfigProvider theme={{ ... }}>
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<App>
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...
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</App>
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</ConfigProvider>
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```
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### Embedded usage scenarios (if not necessary, try not to do nesting)
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```tsx
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<App>
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<Space>
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...
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<App>...</App>
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</Space>
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</App>
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```
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### Global scene (redux scene)
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```tsx
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// Entry component
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import { App } from 'antd';
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import type { MessageInstance } from 'antd/es/message/interface';
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import type { ModalStaticFunctions } from 'antd/es/modal/confirm';
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import type { NotificationInstance } from 'antd/es/notification/interface';
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let message: MessageInstance;
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let notification: NotificationInstance;
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let modal: Omit<ModalStaticFunctions, 'warn'>;
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export default () => {
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const staticFunction = App.useApp();
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message = staticFunction.message;
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modal = staticFunction.modal;
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notification = staticFunction.notification;
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return null;
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};
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export { message, modal, notification };
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```
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```tsx
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// sub page
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import React from 'react';
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import { Button, Space } from 'antd';
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import { message } from './store';
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export default () => {
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const showMessage = () => {
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message.success('Success!');
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};
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return (
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<Space>
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<Button type="primary" onClick={showMessage}>
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Open message
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</Button>
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</Space>
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);
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};
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```
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## API
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Common props ref：[Common props](/docs/react/common-props)
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> This component is available since `antd@5.1.0`.
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### App
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| component | Config render element, if `false` will not create DOM node | ComponentType \| false | div | 5.11.0 |
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| message | Global config for Message | [MessageConfig](/components/message/#messageconfig) | - | 5.3.0 |
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| notification | Global config for Notification | [NotificationConfig](/components/notification/#notificationconfig) | - | 5.3.0 |
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## Design Token
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<ComponentTokenTable component="App"></ComponentTokenTable>
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## FAQ
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### CSS Var doesn't work inside `<App component={false}>`
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Make sure the App `component` is a legit React component string, so when you're turning on CSS variables, there's a container to hold the CSS class name.
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