react-router + antD /按后退/前进按钮时如何突出显示菜单项？

Question

我创建了一个菜单,想要突出显示我选择的项目,我做到了.但是当我按后退/前进按钮时,菜单项不会突出显示.我该怎么办？

我试图使用addEventListener但失败了.

有人可以提供一些建议吗？

class Sidebar extends React.Component {
    constructor(props) {
        super(props);
        this.state={
            test: "home"
        }
        this.menuClickHandle = this.menuClickHandle.bind(this);
    }

    componentWillMount(){
        hashHistory.listen((event)=>{
            test1 = event.pathname.split("/");
        });
        this.setState({
            test:test1[1]
        });
    }

    menuClickHandle(item) {
        this.props.clickItem(item.key);
    }

    onCollapseChange() {
        this.props.toggle();
    }

    render() {
        var {collapse} = this.props;
        return (
            <aside className="ant-layout-sider">
                <Menu mode="inline" theme="dark" defaultSelectedKeys={[this.state.test || "home"]} onClick={this.menuClickHandle.bind(this)}>
                    <Menu.Item key="home">
                        <Link to="/home">
                            <Icon type="user"/><span className="nav-text">????</span>
                        </Link>
                    </Menu.Item>
                    <Menu.Item key="banner">
                        <Link to="/banner">
                            <Icon type="setting"/><span className="nav-text">Banner??</span>
                        </Link>
                    </Menu.Item>
                </Menu>
                <div className="ant-aside-action" onClick={this.onCollapseChange.bind(this)}>
                    {collapse ? <Icon type="right"/> : <Icon type="left"/>}
                </div>
            </aside>
        )
    }
}

Answer 1

我可以使用WithRouter提出解决方案

import React,{ Component } from 'react';
import { NavLink, withRouter } from 'react-router-dom';
import { Layout, Menu, Icon } from 'antd';
import PropTypes from 'prop-types';

const { Sider } = Layout;

class SideMenu extends Component{

  static propTypes = {
    location: PropTypes.object.isRequired
  }

  render() {
    const { location } = this.props;
    return (
        <Sider
          trigger={null}
          collapsible
          collapsed={this.props.collapsed}>

          <div className="logo" />
          <Menu
            theme="dark"
            mode="inline"
            defaultSelectedKeys={['/']}
            selectedKeys={[location.pathname]}>
            <Menu.Item key="/">
              <NavLink to="/">
                <Icon type="home" />
                <span>Home</span>
              </NavLink>
            </Menu.Item>
            <Menu.Item key="/other">
              <NavLink to="/other">
                <Icon type="mobile"/>
                <span>Applications</span>
              </NavLink>
            </Menu.Item>
            <Menu.Item key="/notifications">
              <NavLink to="/notifications">
                <Icon type="notification" />
                <span>Notifications</span>
              </NavLink>
            </Menu.Item>
          </Menu>
        </Sider>
    )
  }
}

export default withRouter(SideMenu);

Answer 2

您可以将链接的路径设置为每个 Menu.Item 上的键。然后 selectedKeys={this.props.location.pathname}

<Menu
  theme="light"
  mode='inline'
  selectedKeys={[this.props.location.pathname,]}
>
  <Menu.Item key={item.path} style={{float:'right'}}>
    Link to={item.path}>{item.name}</Link>
  </Menu.Item>
  {menulist}
</Menu>

项目将根据当前路径设置为活动状态。我添加了 [] 和尾随逗号，因为 selectedKeys 接受数组，而 this.props.location.pathname 是一个字符串。我只是作为爱好编码，所以不知道它是否可以接受。

Answer 3

以下答案假设您正在使用 hooks。我知道你的问题不在你的范围内，但这可能对其他人有用。此外，如果您有诸如 之类的嵌套路径，则此解决方案将起作用/banner/this/is/nested，并且它不仅在按后退和前进按钮时起作用，而且在刷新当前页面时也起作用：

import React, { useState, useEffect } from 'react'
import { useHistory, useLocation } from 'react-router-dom'
import { Layout, Menu } from 'antd'

const { Sider } = Layout

const items = [
  { key: '1', label: 'Invoices', path: '/admin/invoices' },
  { key: '2', label: 'Service Details', path: '/admin/service-details' },
  { key: '3', label: 'Service Contract Details', path: '/admin/service-contract-details' },
  { key: '4', label: 'Cost Centers', path: '/admin/cost-centers' },
  { key: '5', label: 'Clients', path: '/admin/clients' },
  { key: '6', label: 'Vendors', path: '/admin/vendors' }
]

const Sidebar = () => {
  const location = useLocation()
  const history = useHistory()
  const [selectedKey, setSelectedKey] = useState(items.find(_item => location.pathname.startsWith(_item.path)).key)

  const onClickMenu = (item) => {
    const clicked = items.find(_item => _item.key === item.key)
    history.push(clicked.path)
  }

  useEffect(() => {
    setSelectedKey(items.find(_item => location.pathname.startsWith(_item.path)).key)
  }, [location])

  return (
    <Sider style={{ backgroundColor: 'white' }}>
      <h3 style={{ paddingLeft: '1rem', paddingTop: '1rem', fontSize: '1.25rem', fontWeight: 'bold', minHeight: 64, margin: 0 }}>
        Costek
      </h3>
      <Menu selectedKeys={[selectedKey]} mode='inline' onClick={onClickMenu}>
        {items.map((item) => (
          <Menu.Item key={item.key}>{item.label}</Menu.Item>
        ))}
      </Menu>
    </Sider>
  )
}

export default Sidebar

侧边栏如下所示：

Answer 4

拦截当前URL，然后设置selectedKeys？请注意，它不是defaultSelectedKeys ？。

componentWillMount(){
        hashHistory.listen((event)=>{
            pathname = event.pathname.split("/");
            if(pathname != null){
                this.setState({
                    test:pathname[1]
                });
            }
        });
    }