嵌套菜单（子菜单）

Question

我试图实现子菜单（菜单嵌套）。

值得一提的是我使用的九头蛇成分，不具有终极版以前的经验（因为这一特定问题的开始学习它前几天）。

我已经按照规定对材料的UI为嵌套列表https://material-ui.com/demos/lists/#nested-list的例子。而从https://marmelab.com/react-admin/Theming.html#using-a-custom-menu自定义菜单实施方案教程。

所以，我有几个问题。

1）我可以只处理的菜单项拨动状态组件（MyMenu菜单）？

一个例子是不相关的反应，管理员，但它只是例子我是什么意思。

import React, { Component } from "react";
import { connect } from "react-redux";
import { addArticle } from "../actions/index";
const mapDispatchToProps = dispatch => {
  return {
    addArticle: article => dispatch(addArticle(article))
  };
};
class ConnectedForm extends Component {
  constructor() {
    super();
    this.state = {
      title: ""
    };
    this.handleChange = this.handleChange.bind(this);
    this.handleSubmit = this.handleSubmit.bind(this);
  }
  handleChange(event) {
    this.setState({ [event.target.id]: event.target.value });
  }
  handleSubmit(event) {
    event.preventDefault();
    const { title } = this.state;
    const id = uuidv1();
    this.props.addArticle({ title, id });
    this.setState({ title: "" });
  }
  render() {
    const { title } = this.state;
    return (
      <form onSubmit={this.handleSubmit}>
        <div className="form-group">
          <label htmlFor="title">Title</label>
          <input
            type="text"
            className="form-control"
            id="title"
            value={title}
            onChange={this.handleChange}
          />
        </div>
        <button type="submit" className="btn btn-success btn-lg">
          SAVE
        </button>
      </form>
    );
  }
}
const Form = connect(null, mapDispatchToProps)(ConnectedForm);
export default Form;

2）如果没有，我可以做到这一点通过在商店宣布一个新的状态，例如，开放式：假的，然后使用自定义减速来处理。

3（奖金）。如果它不是一个问题，我将不胜感激，如果有人可以把我在正确的方向开始这件事首先学习这样我就可以少痛苦设法解决与这个惊人的框架问题:)

Answer 1

该反应管理员演示现在显示的方式在examples/demo/src/layout/Menu.js这样做：

import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { connect } from 'react-redux';
import compose from 'recompose/compose';
import SettingsIcon from '@material-ui/icons/Settings';
import LabelIcon from '@material-ui/icons/Label';
import { withRouter } from 'react-router-dom';
import {
    translate,
    DashboardMenuItem,
    MenuItemLink,
    Responsive,
} from 'react-admin';

import visitors from '../visitors';
import orders from '../orders';
import invoices from '../invoices';
import products from '../products';
import categories from '../categories';
import reviews from '../reviews';
import SubMenu from './SubMenu';

class Menu extends Component {
    state = {
        menuCatalog: false,
        menuSales: false,
        menuCustomers: false,
    };

    static propTypes = {
        onMenuClick: PropTypes.func,
        logout: PropTypes.object,
    };

    handleToggle = menu => {
        this.setState(state => ({ [menu]: !state[menu] }));
    };

    render() {
        const { onMenuClick, open, logout, translate } = this.props;
        return (
            <div>
                {' '}
                <DashboardMenuItem onClick={onMenuClick} />
                <SubMenu
                    handleToggle={() => this.handleToggle('menuSales')}
                    isOpen={this.state.menuSales}
                    sidebarIsOpen={open}
                    name="pos.menu.sales"
                    icon={<orders.icon />}
                >
                    <MenuItemLink
                        to={`/commands`}
                        primaryText={translate(`resources.commands.name`, {
                            smart_count: 2,
                        })}
                        leftIcon={<orders.icon />}
                        onClick={onMenuClick}
                    />
                    <MenuItemLink
                        to={`/invoices`}
                        primaryText={translate(`resources.invoices.name`, {
                            smart_count: 2,
                        })}
                        leftIcon={<invoices.icon />}
                        onClick={onMenuClick}
                    />
                </SubMenu>
                <SubMenu
                    handleToggle={() => this.handleToggle('menuCatalog')}
                    isOpen={this.state.menuCatalog}
                    sidebarIsOpen={open}
                    name="pos.menu.catalog"
                    icon={<products.icon />}
                >
                    <MenuItemLink
                        to={`/products`}
                        primaryText={translate(`resources.products.name`, {
                            smart_count: 2,
                        })}
                        leftIcon={<products.icon />}
                        onClick={onMenuClick}
                    />
                    <MenuItemLink
                        to={`/categories`}
                        primaryText={translate(`resources.categories.name`, {
                            smart_count: 2,
                        })}
                        leftIcon={<categories.icon />}
                        onClick={onMenuClick}
                    />
                </SubMenu>
                <SubMenu
                    handleToggle={() => this.handleToggle('menuCustomer')}
                    isOpen={this.state.menuCustomer}
                    sidebarIsOpen={open}
                    name="pos.menu.customers"
                    icon={<visitors.icon />}
                >
                    <MenuItemLink
                        to={`/customers`}
                        primaryText={translate(`resources.customers.name`, {
                            smart_count: 2,
                        })}
                        leftIcon={<visitors.icon />}
                        onClick={onMenuClick}
                    />
                    <MenuItemLink
                        to={`/segments`}
                        primaryText={translate(`resources.segments.name`, {
                            smart_count: 2,
                        })}
                        leftIcon={<LabelIcon />}
                        onClick={onMenuClick}
                    />
                </SubMenu>
                <MenuItemLink
                    to={`/reviews`}
                    primaryText={translate(`resources.reviews.name`, {
                        smart_count: 2,
                    })}
                    leftIcon={<reviews.icon />}
                    onClick={onMenuClick}
                />
                <Responsive
                    xsmall={
                        <MenuItemLink
                            to="/configuration"
                            primaryText={translate('pos.configuration')}
                            leftIcon={<SettingsIcon />}
                            onClick={onMenuClick}
                        />
                    }
                    medium={null}
                />
                <Responsive
                    small={logout}
                    medium={null} // Pass null to render nothing on larger devices
                />
            </div>
        );
    }
}

const mapStateToProps = state => ({
    open: state.admin.ui.sidebarOpen,
    theme: state.theme,
    locale: state.i18n.locale,
});

const enhance = compose(
    withRouter,
    connect(
        mapStateToProps,
        {}
    ),
    translate
);

export default enhance(Menu);

Answer 2

我已经搜查了同样的问题。但无法找到一个嵌套的菜单实施方案。所以，我写我自己。检查下面的代码;

import React, { Component, createElement } from "react";
import {
  Admin,
  Resource,
  Layout,
  MenuItemLink,
  getResources
} from "react-admin";
import jsonServerProvider from "ra-data-json-server";
import { withRouter } from "react-router-dom";
import { connect } from "react-redux";
import {
  List,
  ListItem,
  Collapse,
  ListItemText,
  ListItemIcon
} from "@material-ui/core";
import { ExpandLess, ExpandMore, StarBorder, LabelIcon } from "@material-ui/icons";
import { withStyles } from "@material-ui/core/styles";

const menuStyles = theme => ({
  nested: {
    paddingLeft: theme.spacing.unit * 4
  }
});

class Menu extends Component {
  menuList = [
    { name: "A", label: "Top menu 1", icon: <LabelIcon /> },
    { name: "B", label: "Top menu 2", icon: <LabelIcon /> },
    { name: "c", label: "Top menu 3", icon: <LabelIcon /> }
  ];
  constructor(props) {
    super(props);
    this.state = { open: "A" };
  }
  render() {
    const { resources, onMenuClick, logout } = this.props;
    return (
      <div>
        <List component="nav">
          {this.menuList.map(menu => {
            return (
              <div key={menu.name}>
                <ListItem
                  button
                  onClick={() => this.setState(state => ({ open: menu.name }))}
                >
                  <ListItemIcon>{menu.icon}</ListItemIcon>
                  <ListItemText inset primary={menu.label} />
                  {this.state.open == menu.name ? (
                    <ExpandLess />
                  ) : (
                    <ExpandMore />
                  )}
                </ListItem>
                <Collapse
                  in={this.state.open == menu.name}
                  timeout="auto"
                  unmountOnExit
                >
                  <List component="div" disablePadding>
                    {resources
                      .filter(x => x.options.menu == menu.name)
                      .map((resource, i) => (
                        <MenuItemLink
                          key={"m" + i}
                          to={`/${resource.name}`}
                          primaryText={resource.options.label || resource.name}
                          leftIcon={
                            resource.icon
                              ? createElement(resource.icon)
                              : undefined
                          }
                          onClick={onMenuClick}
                          className={this.props.classes.nested}
                        />
                      ))}
                  </List>
                </Collapse>
              </div>
            );
          })}
        </List>
      </div>
    );
  }
}

var MenuWithStyles = withStyles(menuStyles)(Menu);

const MyMenu = withRouter(
  connect(state => ({
    resources: getResources(state)
  }))(MenuWithStyles)
);

const MyLayout = props => <Layout {...props} menu={MyMenu} />;

const App = () => (
    <Admin      
      ...
      appLayout={MyLayout}
    >
      <Resource 
        ...
        options={{ label: 'Page 1' menu: "A" }}
      />
      <Resource 
        ...
        options={{ label: 'Page 2' menu: "A" }}
      />
      <Resource 
        ...
        options={{ label: 'Page 3' menu: "B" }}
      />
    </Admin>
  );