ant-design/components/layout/demo/custom-trigger-debug.tsx

import React, { useState } from 'react';
import {
  DesktopOutlined,
  FileOutlined,
  MenuFoldOutlined,
  MenuUnfoldOutlined,
  PieChartOutlined,
  TeamOutlined,
  UserOutlined,
} from '@ant-design/icons';
import type { MenuProps } from 'antd';
import { Layout, Menu, Button, theme } from 'antd';

const { Header, Sider, Content } = Layout;

const items: MenuProps['items'] = [
  {
    key: '1',
    icon: <PieChartOutlined />,
    label: 'Option 1',
  },
  {
    key: '2',
    icon: <DesktopOutlined />,
    label: 'Option 2',
  },
  {
    key: 'sub1',
    icon: <UserOutlined />,
    label: 'User',
    children: [
      {
        key: '3',
        label: 'Tom',
      },
      {
        key: '4',
        label: 'Bill',
      },
      {
        key: '5',
        label: 'Alex',
      },
    ],
  },
  {
    key: 'sub2',
    icon: <TeamOutlined />,
    label: 'Team',
    children: [
      {
        key: '6',
        label: 'Team 1',
      },
      {
        key: '7',
        label: 'Team 2',
      },
    ],
  },
  {
    key: '9',
    icon: <FileOutlined />,
  },
];

const App: React.FC = () => {
  const [collapsed, setCollapsed] = useState(true);
  const {
    token: { colorBgContainer, borderRadiusLG },
  } = theme.useToken();

  return (
    <Layout>
      <Sider trigger={null} collapsible collapsed={collapsed}>
        <div className="demo-logo-vertical" />
        <Menu
          theme="dark"
          mode="inline"
          defaultSelectedKeys={['3']}
          defaultOpenKeys={['sub1']}
          items={items}
        />
      </Sider>
      <Layout>
        <Header style={{ padding: 0, background: colorBgContainer }}>
          <Button
            type="text"
            icon={collapsed ? <MenuUnfoldOutlined /> : <MenuFoldOutlined />}
            onClick={() => setCollapsed(!collapsed)}
            style={{
              fontSize: '16px',
              width: 64,
              height: 64,
            }}
          />
        </Header>
        <Content
          style={{
            margin: '24px 16px',
            padding: 24,
            minHeight: 280,
            background: colorBgContainer,
            borderRadius: borderRadiusLG,
          }}
        >
          Content
        </Content>
      </Layout>
    </Layout>
  );
};

export default App;