Notification通知提醒框

全局展示通知提醒信息。

何时使用

在系统四个角显示通知提醒信息。经常用于以下情况：

• 较为复杂的通知内容。

• 带有交互的通知，给出用户下一步的行动点。

• 系统主动推送。

代码演示

基本

最简单的用法，4.5 秒后自动关闭。

import { Button, notification } from 'antd';
const openNotification = () => {
  notification.open({
    message: 'Notification Title',
    description:
      'This is the content of the notification. This is the content of the notification. This is the content of the notification.',
    onClick: () => {
      console.log('Notification Clicked!');
    },
  });
};
ReactDOM.render(
  <Button type="primary" onClick={openNotification}>
    Open the notification box
  </Button>,
  mountNode,
);

带有图标的通知提醒框

通知提醒框左侧有图标。

import { Button, notification, Space } from 'antd';
const openNotificationWithIcon = type => {
  notification[type]({
    message: 'Notification Title',
    description:
      'This is the content of the notification. This is the content of the notification. This is the content of the notification.',
  });
};
ReactDOM.render(
  <Space>
    <Button onClick={() => openNotificationWithIcon('success')}>Success</Button>
    <Button onClick={() => openNotificationWithIcon('info')}>Info</Button>
    <Button onClick={() => openNotificationWithIcon('warning')}>Warning</Button>
    <Button onClick={() => openNotificationWithIcon('error')}>Error</Button>
  </Space>,
  mountNode,
);

自定义图标

图标可以被自定义。

import { Button, notification } from 'antd';
import { SmileOutlined } from '@ant-design/icons';
const openNotification = () => {
  notification.open({
    message: 'Notification Title',
    description:
      'This is the content of the notification. This is the content of the notification. This is the content of the notification.',
    icon: <SmileOutlined style={{ color: '#108ee9' }} />,
  });
};
ReactDOM.render(
  <Button type="primary" onClick={openNotification}>
    Open the notification box
  </Button>,
  mountNode,
);

自定义样式

使用 style 和 className 来定义样式。

import { Button, notification } from 'antd';
const openNotification = () => {
  notification.open({
    message: 'Notification Title',
    description:
      'This is the content of the notification. This is the content of the notification. This is the content of the notification.',
    className: 'custom-class',
    style: {
      width: 600,
    },
  });
};
ReactDOM.render(
  <Button type="primary" onClick={openNotification}>
    Open the notification box
  </Button>,
  mountNode,
);

通过 Hooks 获取上下文

通过 notification.useNotification 创建支持读取 context 的 contextHolder。

import { Button, notification, Divider, Space } from 'antd';
import {
  RadiusUpleftOutlined,
  RadiusUprightOutlined,
  RadiusBottomleftOutlined,
  RadiusBottomrightOutlined,
} from '@ant-design/icons';
const Context = React.createContext({ name: 'Default' });
const Demo = () => {
  const [api, contextHolder] = notification.useNotification();
  const openNotification = placement => {
    api.info({
      message: `Notification ${placement}`,
      description: <Context.Consumer>{({ name }) => `Hello, ${name}!`}</Context.Consumer>,
      placement,
    });
  };
  return (
    <Context.Provider value={{ name: 'Ant Design' }}>
      {contextHolder}
      <Space>
        <Button type="primary" onClick={() => openNotification('topLeft')}>
          <RadiusUpleftOutlined />
          topLeft
        </Button>
        <Button type="primary" onClick={() => openNotification('topRight')}>
          <RadiusUprightOutlined />
          topRight
        </Button>
      </Space>
      <Divider />
      <Space>
        <Button type="primary" onClick={() => openNotification('bottomLeft')}>
          <RadiusBottomleftOutlined />
          bottomLeft
        </Button>
        <Button type="primary" onClick={() => openNotification('bottomRight')}>
          <RadiusBottomrightOutlined />
          bottomRight
        </Button>
      </Space>
    </Context.Provider>
  );
};
ReactDOM.render(<Demo />, mountNode);

自动关闭的延时

自定义通知框自动关闭的延时，默认 4.5s，取消自动关闭只要将该值设为 0 即可。

import { Button, notification } from 'antd';
const openNotification = () => {
  const args = {
    message: 'Notification Title',
    description:
      'I will never close automatically. This is a purposely very very long description that has many many characters and words.',
    duration: 0,
  };
  notification.open(args);
};
ReactDOM.render(
  <Button type="primary" onClick={openNotification}>
    Open the notification box
  </Button>,
  mountNode,
);

自定义按钮

自定义关闭按钮的样式和文字。

import { Button, notification } from 'antd';
const close = () => {
  console.log(
    'Notification was closed. Either the close button was clicked or duration time elapsed.',
  );
};
const openNotification = () => {
  const key = `open${Date.now()}`;
  const btn = (
    <Button type="primary" size="small" onClick={() => notification.close(key)}>
      Confirm
    </Button>
  );
  notification.open({
    message: 'Notification Title',
    description:
      'A function will be be called after the notification is closed (automatically after the "duration" time of manually).',
    btn,
    key,
    onClose: close,
  });
};
ReactDOM.render(
  <Button type="primary" onClick={openNotification}>
    Open the notification box
  </Button>,
  mountNode,
);

位置

通知从右上角、右下角、左下角、左上角弹出。

import { Button, notification, Divider, Space } from 'antd';
import {
  RadiusUpleftOutlined,
  RadiusUprightOutlined,
  RadiusBottomleftOutlined,
  RadiusBottomrightOutlined,
} from '@ant-design/icons';
const openNotification = placement => {
  notification.info({
    message: `Notification ${placement}`,
    description:
      'This is the content of the notification. This is the content of the notification. This is the content of the notification.',
    placement,
  });
};
ReactDOM.render(
  <div>
    <Space>
      <Button type="primary" onClick={() => openNotification('topLeft')}>
        <RadiusUpleftOutlined />
        topLeft
      </Button>
      <Button type="primary" onClick={() => openNotification('topRight')}>
        <RadiusUprightOutlined />
        topRight
      </Button>
    </Space>
    <Divider />
    <Space>
      <Button type="primary" onClick={() => openNotification('bottomLeft')}>
        <RadiusBottomleftOutlined />
        bottomLeft
      </Button>
      <Button type="primary" onClick={() => openNotification('bottomRight')}>
        <RadiusBottomrightOutlined />
        bottomRight
      </Button>
    </Space>
  </div>,
  mountNode,
);

更新消息内容

可以通过唯一的 key 来更新内容。

import { Button, notification } from 'antd';
const key = 'updatable';
const openNotification = () => {
  notification.open({
    key,
    message: 'Notification Title',
    description: 'description.',
  });
  setTimeout(() => {
    notification.open({
      key,
      message: 'New Title',
      description: 'New description.',
    });
  }, 1000);
};
ReactDOM.render(
  <Button type="primary" onClick={openNotification}>
    Open the notification box
  </Button>,
  mountNode,
);

API

• notification.success(config)

• notification.error(config)

• notification.info(config)

• notification.warning(config)

• notification.warn(config)

• notification.open(config)

• notification.close(key: String)

• notification.destroy()

config 参数如下：

还提供了一个全局配置方法，在调用前提前配置，全局一次生效。

• notification.config(options)

  当你使用 ConfigProvider 进行全局化配置时，系统会默认自动开启 RTL 模式。(4.3.0+)

  当你想单独使用，可通过如下设置开启 RTL 模式。

notification.config({
  placement: 'bottomRight',
  bottom: 50,
  duration: 3,
  rtl: true,
});

FAQ

为什么 notification 不能获取 context、redux 的内容和 ConfigProvider 的 locale/prefixCls 配置？

直接调用 notification 方法，antd 会通过 ReactDOM.render 动态创建新的 React 实体。其 context 与当前代码所在 context 并不相同，因而无法获取 context 信息。

当你需要 context 信息（例如 ConfigProvider 配置的内容）时，可以通过 notification.useNotification 方法会返回 api 实体以及 contextHolder 节点。将其插入到你需要获取 context 位置即可：

const [api, contextHolder] = notification.useNotification();
return (
  <Context1.Provider value="Ant">
    {/* contextHolder 在 Context1 内，它可以获得 Context1 的 context */}
    {contextHolder}
    <Context2.Provider value="Design">
      {/* contextHolder 在 Context2 外，因而不会获得 Context2 的 context */}
    </Context2.Provider>
  </Context1.Provider>
);

异同：通过 hooks 创建的 contextHolder 必须插入到子元素节点中才会生效，当你不需要上下文信息时请直接调用。