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Components 包裹组件 其他 App https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*HJz8SZos2wgAAAAAAAAAAAAADrJ8AQ/original [{cols 2}]

新的包裹组件,提供重置样式和提供消费上下文的默认环境。

何时使用

  • 提供可消费 React context 的 message.xxxModal.xxxnotification.xxx 的静态方法,可以简化 useMessage 等方法需要手动植入 contextHolder 的问题。
  • 提供基于 .ant-app 的默认重置样式,解决原生元素没有 antd 规范样式的问题。

代码演示

basic

如何使用

基础用法

App 组件通过 Context 提供上下文方法调用,因而 useApp 需要作为子组件才能使用,我们推荐在应用中顶层包裹 App。

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;

注意:App.useApp 必须在 App 之下方可使用。

与 ConfigProvider 先后顺序

App 组件只能在 ConfigProvider 之下才能使用 Design Token, 如果需要使用其样式重置能力,则 ConfigProvider 与 App 组件必须成对出现。

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

内嵌使用场景(如无必要,尽量不做嵌套)

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

全局场景(redux 场景)

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

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, notification, modal };
// sub page
import React from 'react';
import { Button, Space } from 'antd';
import { message, modal, notification } from './store';

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

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