ant-design/components/app/index.en-US.md

metadata

category: Components
group: Other
title: App
description: Application wrapper for some global usages.
cover: >-
  https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*HJz8SZos2wgAAAAAAAAAAAAADrJ8AQ/original
coverDark: >-
  https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*oC92TK44Ex8AAAAAAAAAAAAADrJ8AQ/original
demo:
  cols: 2
tag: 5.1.0

When To Use

• Provide reset styles based on .ant-app element.
• You could use static methods of message/notification/Modal from useApp without writing contextHolder manually.

Examples

Basic Hooks config

How to use

Basic usage

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.

import React from 'react';
import { App } from 'antd';

const MyPage: React.FC = () => {
  const { message, notification, modal } = App.useApp();
  message.success('Good!');
  notification.info({ message: 'Good' });
  modal.warning({ title: 'Good' });
  // ....
  // other message, notification, modal static function
  return <div>Hello word</div>;
};

const MyApp: React.FC = () => (
  <App>
    <MyPage />
  </App>
);

export default MyApp;

Note: App.useApp must be available under App.

Sequence with ConfigProvider

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.

<ConfigProvider theme={{ ... }}>
  <App>
    ...
  </App>
</ConfigProvider>

Embedded usage scenarios (if not necessary, try not to do nesting)

<App>
  <Space>
    ...
    <App>...</App>
  </Space>
</App>

Global scene (redux scene)

// Entry component
import { App } from 'antd';
import type { MessageInstance } from 'antd/es/message/interface';
import type { ModalStaticFunctions } from 'antd/es/modal/confirm';
import type { NotificationInstance } from 'antd/es/notification/interface';

let message: MessageInstance;
let notification: NotificationInstance;
let modal: Omit<ModalStaticFunctions, 'warn'>;

export default () => {
  const staticFunction = App.useApp();
  message = staticFunction.message;
  modal = staticFunction.modal;
  notification = staticFunction.notification;
  return null;
};

export { message, modal, notification };

// sub page
import React from 'react';
import { Button, Space } from 'antd';

import { message } from './store';

export default () => {
  const showMessage = () => {
    message.success('Success!');
  };

  return (
    <Space>
      <Button type="primary" onClick={showMessage}>
        Open message
      </Button>
    </Space>
  );
};

API

Common props ref：Common props

This component is available since antd@5.1.0.

App

Property	Description	Type	Default	Version
component	Config render element, if false will not create DOM node	ComponentType | false	div	5.11.0
message	Global config for Message	MessageConfig	-	5.3.0
notification	Global config for Notification	NotificationConfig	-	5.3.0

Design Token

FAQ

CSS Var doesn't work inside <App component={false}>

Make sure the App component is a valid html tag, so when you're turning on CSS variables, there's a container to hold the CSS class name. If not set, it defaults to the div tag. If set to false, no additional DOM nodes will be created, and no default styles will be provided.