React【Day4下+5】

环境搭建

使用CRA创建项目，并安装必要依赖，包括下列基础包

1. Redux状态管理 - @reduxjs/toolkit 、 react-redux

2. 路由 - react-router-dom

3. 时间处理 - dayjs

4. class类名处理 - classnames

5. 移动端组件库 - antd-mobile

6. 请求插件 - axios

   pnpm i @reduxjs/toolkit react-redux react-router-dom classname dayjs antd-mobile axios

配置别名路径

1. 背景知识

1. 路径解析配置（webpack），把 @/ 解析为 src/
2. 路径联想配置（VsCode），VsCode 在输入 @/ 时，自动联想出来对应的 src/下的子级目录

2. 路径解析配置

配置步骤：

1. 安装craco
   npm i -D @craco/craco
2. 项目根目录下创建配置文件
   craco.config.js
3. 配置文件中添加路径解析配置
4. 包文件中配置启动和打包命令

const path = require("path");

module.exports = {
  webpack: {
    alias: {
      "@": path.resolve(__dirname, "src"),
    },
  },
};

3. 联想路径配置

针对Vscode的配置

配置步骤：

1. 根目录下新增配置文件 - jsconfig.json
2. 添加路径提示配置

{
  "compilerOptions":{
    "baseUrl":"./",
    "paths":{
      "@/*":[
        "src/*"
      ]
    }
  }
}

数据Mock实现

在前后端分类的开发模式下，前端可以在没有实际后端接口的支持下先进行接口数据的模拟，进行正常的业务功能开发

1. 常见的Mock方式

2. json-server实现Mock

实现步骤：

1. 项目中安装json-server
   npm i -D json-server
2. 准备一个json文件 （素材里获取）
   server / data.json

{
  "ka": [
    {
      "type": "pay",
      "money": -99,
      "date": "2022-10-24 10:36:42",
      "useFor": "drinks",
      "id": 1
    },
    {
      "type": "pay",
      "money": -88,
      "date": "2022-10-24 10:37:51",
      "useFor": "longdistance",
      "id": 2
    },
    {
      "type": "income",
      "money": 100,
      "date": "2022-10-22 00:00:00",
      "useFor": "bonus",
      "id": 3
    },
    {
      "type": "pay",
      "money": -33,
      "date": "2022-09-24 16:15:41",
      "useFor": "dessert",
      "id": 4
    },
    {
      "type": "pay",
      "money": -56,
      "date": "2022-10-22T05:37:06.000Z",
      "useFor": "drinks",
      "id": 5
    },
    {
      "type": "pay",
      "money": -888,
      "date": "2022-10-28T08:21:42.135Z",
      "useFor": "travel",
      "id": 6
    },
    {
      "type": "income",
      "money": 10000,
      "date": "2023-03-20T06:45:54.004Z",
      "useFor": "salary",
      "id": 7
    },
    {
      "type": "pay",
      "money": -10,
      "date": "2023-03-22T07:17:12.531Z",
      "useFor": "drinks",
      "id": 8
    },
    {
      "type": "pay",
      "money": -20,
      "date": "2023-03-22T07:51:20.421Z",
      "useFor": "dessert",
      "id": 9
    },
    {
      "type": "pay",
      "money": -100,
      "date": "2023-03-22T09:18:12.898Z",
      "useFor": "drinks",
      "id": 17
    },
    {
      "type": "pay",
      "money": -50,
      "date": "2023-03-23T09:11:23.312Z",
      "useFor": "food",
      "id": 18
    },
    {
      "type": "pay",
      "money": -100,
      "date": "2023-04-04T03:03:15.617Z",
      "useFor": "drinks",
      "id": 19
    },
    {
      "type": "pay",
      "money": -100,
      "date": "2023-04-02T16:00:00.000Z",
      "useFor": "food",
      "id": 20
    },
    {
      "type": "income",
      "money": 10000,
      "date": "2023-02-28T16:00:00.000Z",
      "useFor": "salary",
      "id": 21
    }
  ]
}

3. 添加启动命令

"serve": "json-serve ./serve/data.json --port 8888"

4. 访问接口进行测试
   http://localhost:8888/ka

整体路由设计

俩个一级路由 （Layout / new）

俩个二级路由 （Layout - mouth/year）

步骤：

1. Views 里面写简单的页面

const Month = () => {
  return <div>Month</div>;
};

export default Month;

2. router / index.js

import Layout from "@/views/Layout";
import Month from "@/views/Month";
import New from "@/views/New";
import Year from "@/views/Year";
import { createBrowserRouter } from "react-router-dom";

const router = createBrowserRouter([
  {
    path: "/",
    element: <Layout />,
    children: [
      {
        path: "month",
        element: <Month />,
      },
      {
        path: "year",
        element: <Year />,
      },
    ],
  },

  {
    path: "/new",
    element: <New />,
  },
]);

export default router;

3. 注入
   根目录 index.js
   配置路由的时候App可以不要了

import React from "react";
import ReactDOM from "react-dom/client";
import "./index.css";
// import App from "./App";
import router from "./router";
import { RouterProvider } from "react-router-dom";
const root = ReactDOM.createRoot(document.getElementById("root"));
root.render(<RouterProvider router={router} />);

4. 到这一步之前 2级路由 不会显示，因为还没配置2级路由出口！！！！

在year 和month的爹添加二级路由出口

import { Outlet } from "react-router-dom";

const Layout = () => {
  return (
    <div>
      layout
      <Outlet />
    </div>
  );
};

export default Layout;

antD主题定制

1. 定制方案

如果是全局就是div里面的Button和外边的Button都会生效；如果是局部的话，只有div里面的button才会变

2. 实现方式

1. 创建css 文件
   src / theme.css

/* 全局定制 */
:root:root {
  --adm-color-primary: skyblue;
}

/* 局部定制 */
.purple {
  --adm-color-primary: purple;
}

2. 导入 入口文件 index.js

// 导入定制主题
import "./theme.css";

3. 使用

import { Outlet } from "react-router-dom";
import { Button } from "antd-mobile";
const Layout = () => {
  return (
    <div>
      layout
      {/* 注意这里的不是普通的button */}
      <Button color="primary">ceshi</Button>
      <div className="purple">
        <Button color="primary">jvbu</Button>
      </div>
      <Outlet />
    </div>
  );
};

export default Layout;

3. 记账本主题色

:root:root {
  --adm-color-primary: rgb(105, 174, 120);
}

Redux管理账目列表

// 账单列表相关store

import { createSlice } from '@reduxjs/toolkit'
import axios from 'axios'

const billStore = createSlice({
  name: 'bill',
  // 数据状态state
  initialState: {
    billList: []
  },
  reducers: {
    // 同步修改方法
    setBillList (state, action) {
      state.billList = action.payload
    }
  }
})

// 解构actionCreater函数
const { setBillList } = billStore.actions
// 编写异步
const getBillList = () => {
  return async (dispatch) => {
    // 编写异步请求
    const res = await axios.get('http://localhost:8888/ka')
    // 触发同步reducer
    dispatch(setBillList(res.data))
  }
}

export { getBillList }
// 导出reducer
const reducer = billStore.reducer

export default reducer

// 组合子模块 导出store实例

import { configureStore } from '@reduxjs/toolkit'
import billReducer from './modules/billStore'

const store = configureStore({
  reducer: {
    bill: billReducer
  }
})

export default store

入口文件 index.js

import router from './router'
import { Provider } from 'react-redux'

const root = ReactDOM.createRoot(document.getElementById('root'))
root.render(
  <Provider store={store}>
    <RouterProvider router={router} />
  </Provider>
)

TabBar功能实现

1. 静态布局实现

配套静态模版和样式文件

import { TabBar } from "antd-mobile"
import { useEffect } from "react"
import { Outlet } from "react-router-dom"
import { useDispatch } from 'react-redux'
import { getBillList } from "@/store/modules/billStore"
import './index.scss'
import {
  BillOutline,
  CalculatorOutline,
  AddCircleOutline
} from 'antd-mobile-icons'

const tabs = [
  {
    key: '/month',
    title: '月度账单',
    icon: <BillOutline />,
  },
  {
    key: '/new',
    title: '记账',
    icon: <AddCircleOutline />,
  },
  {
    key: '/year',
    title: '年度账单',
    icon: <CalculatorOutline />,
  },
]

const Layout = () => {
  const dispatch = useDispatch()
  useEffect(() => {
    dispatch(getBillList())
  }, [dispatch])
  return (
    <div className="layout">
      <div className="container">
        <Outlet />
      </div>
      <div className="footer">
        <TabBar>
          {tabs.map(item => (
            <TabBar.Item key={item.key} icon={item.icon} title={item.title} />
          ))}
        </TabBar>
      </div>
    </div>
  )
}

export default Layout

.layout {
  .container {
    position: fixed;
    top: 0;
    bottom: 50px;
  }
  .footer {
    position: fixed;
    bottom: 0;
    width: 100%;
  }
}

下载sass
npm i -D sass

2. 切换路由实现

监听change事件，在事件回调中调用路由跳转方法

 // 切换菜单跳转路由
  const navigate = useNavigate()
  const swithRoute = (path) => {
    console.log(path)
    navigate(path)
  }

  return (
    <div className="layout">
      <div className="footer">
        <TabBar onChange={swithRoute}>
          {/* 省略... */}
        </TabBar>
      </div>
    </div>
  )

月度账单-统计区域

1. 准备静态结构

views / Month / index.js

import { NavBar, DatePicker } from 'antd-mobile'
import './index.scss'

const Month = () => {
  return (
    <div className="monthlyBill">
      <NavBar className="nav" backArrow={false}>
        月度收支
      </NavBar>
      <div className="content">
        <div className="header">
          {/* 时间切换区域 */}
          <div className="date">
            <span className="text">
              2023 | 3月账单
            </span>
            <span className='arrow expand'></span>
          </div>
          {/* 统计区域 */}
          <div className='twoLineOverview'>
            <div className="item">
              <span className="money">{100}</span>
              <span className="type">支出</span>
            </div>
            <div className="item">
              <span className="money">{200}</span>
              <span className="type">收入</span>
            </div>
            <div className="item">
              <span className="money">{200}</span>
              <span className="type">结余</span>
            </div>
          </div>
          {/* 时间选择器 */}
          <DatePicker
            className="kaDate"
            title="记账日期"
            precision="month"
            visible={false}
            max={new Date()}
          />
        </div>
      </div>
    </div >
  )
}

export default Month

.monthlyBill {
  --ka-text-color: #191d26;
  height: 100%;
  background: linear-gradient(180deg, #ffffff, #f5f5f5 100%);
  background-size: 100% 240px;
  background-repeat: no-repeat;
  background-color: rgba(245, 245, 245, 0.9);
  color: var(--ka-text-color);

  .nav {
    --adm-font-size-10: 16px;
    color: #121826;
    background-color: transparent;
    .adm-nav-bar-back-arrow {
      font-size: 20px;
    }
  }

  .content {
    height: 573px;
    padding: 0 10px;
    overflow-y: scroll;
    -ms-overflow-style: none; /* Internet Explorer 10+ */
    scrollbar-width: none; /* Firefox */
    &::-webkit-scrollbar {
      display: none; /* Safari and Chrome */
    }

    > .header {
      height: 135px;
      padding: 20px 20px 0px 18.5px;
      margin-bottom: 10px;
      background-image: url(https://zqran.gitee.io/images/ka/month-bg.png);
      background-size: 100% 100%;

      .date {
        display: flex;
        align-items: center;
        margin-bottom: 25px;
        font-size: 16px;

        .arrow {
          display: inline-block;
          width: 7px;
          height: 7px;
          margin-top: -3px;
          margin-left: 9px;
          border-top: 2px solid #121826;
          border-left: 2px solid #121826;
          transform: rotate(225deg);
          transform-origin: center;
          transition: all 0.3s;
        }
        .arrow.expand {
          transform: translate(0, 2px) rotate(45deg);
        }
      }
    }
  }
  .twoLineOverview {
    display: flex;
    justify-content: space-between;
    width: 250px;

    .item {
      display: flex;
      flex-direction: column;

      .money {
        height: 24px;
        line-height: 24px;
        margin-bottom: 5px;
        font-size: 18px;
      }
      .type {
        height: 14px;
        line-height: 14px;
        font-size: 12px;
      }
    }
  }
}

2. 点击切换时间选择框

实现思路：

1. 准备一个状态数据
2. 点击切换状态
3. 根据状态控制弹框打开关闭以及箭头样式

import { NavBar, DatePicker } from 'antd-mobile'
import './index.scss'
import {  useState } from "react"
import classNames from "classnames"

const Month = () => {
  // 控制时间选择器打开关闭
  const [dateVisible, setDateVisible] = useState(false)
  // 时间选择框确实事件
  const dateConfirm = (date) => {
    // 关闭弹框
    setDateVisible(false)
  }

  return (
    <div className="monthlyBill">
      <NavBar className="nav" backArrow={false}>
        月度收支
      </NavBar>
      <div className="content">
        <div className="header">
          {/* 时间切换区域 */}
          <div className="date" onClick={() => setDateVisible(true)}>
            {/* 省略.. */}
            <span className={classNames('arrow', dateVisible && 'expand')}></span>
          </div>
          {/* 统计区域 */}
        
          {/* 时间选择器 */}
          <DatePicker
            className="kaDate"
            title="记账日期"
            precision="month"
            visible={dateVisible}
            max={new Date()}
            onConfirm={dateConfirm}
          />
        </div>
      </div>
    </div >
  )
}

export default Month

onClose是点击蒙层关闭

3. 切换时间显示

实现思路：

1. 以当前时间作为默认值
2. 在时间切换时完成时间修改

用dayjs实现格式化

import dayjs from "dayjs"

const [currentMonth, setCurrentMonth] = useState(() => {
    return dayjs().format('YYYY-MM')
})

const dateConfirm = (date) => {
  setDateVisible(false)
  const month = dayjs(date).format('YYYY-MM')
  setCurrentMonth(month)
}

4. 统计功能实现

实现思路：

1. 按月分组
2. 根据获取到的时间作为key取当月的账单数组
3. 根据当月的账单数组计算支出、收入、总计

1. 按月分组

安装lodash
npm i lodash

使用

import _ from "lodash";
_.groupBy(billList,(item)=>item.data);

  const billList = useSelector((state) => state.bill.billList);
  const groupList = useMemo(() => {
    return _.groupBy(billList, (item) => dayjs(item.date).format("YYYY-MM"));
  }, [billList]);
  console.log("groupList", groupList);

2. 根据获取到的时间作为key取当月的账单数组

3. 根据当月的账单数组计算支出、收入、总计

  const [selectedMonthList, setelectedMonthList] = useState([]);
  const monthResult = useMemo(() => {
    console.log("monthResult里面的selectedMonthList", selectedMonthList);
    let income = selectedMonthList
      .filter((item) => item.type === "income")
      .reduce((pre, cur) => pre + cur.money, 0);
    let pay = selectedMonthList
      .filter((item) => item.type === "pay")
      .reduce((pre, cur) => pre + cur.money, 0);
    console.log(income);
    console.log(pay);

    return {
      pay,
      income,
      total: pay + income,
    };
  }, [selectedMonthList]);

4. 初始化时渲染统计数据（一打开页面就计算好当前月份的账单

useEffect(() => {
    const nowDate = dayjs().format("YYYY-MM");
    // 边界值控制
    // 因为是获取数据是异步的，所以  groupList[nowDate] 有可能是空的
    if (groupList[nowDate]) {
      setelectedMonthList(groupList[nowDate]);
    }
  }, [groupList]);

// 按月分组
// 注意这里的写法  state.bill.billList
const billList = useSelector(state => state.bill.billList)
const monthGroup = useMemo(() => {
  return _.groupBy(billList, item => dayjs(item.date).format('YYYY-MM'))
}, [billList])

// 根据获取到的时间作为key取当月的账单数组
const dateConfirm = (date) => {
  const monthKey = dayjs(date).format('YYYY-MM')
  setMonthList(monthGroup[monthKey])
}

// 计算统计
const overview = useMemo(() => {
  const income = currentMonthList.filter(item => item.type === 'income')
    .reduce((a, c) => a + c.money, 0)
  const pay = currentMonthList.filter(item => item.type === 'pay')
    .reduce((a, c) => a + c.money, 0)
  return {
    income,
    pay,
    total: income + pay
  }
}, [currentMonthList])

5. 完整代码

import { useSelector } from "react-redux"
import { NavBar, DatePicker } from 'antd-mobile'
import './index.scss'
import _ from 'lodash'
import dayjs from "dayjs"
import { useMemo, useState } from "react"
import { useEffect } from "react"
import classNames from "classnames"

const Month = () => {
  // 按月分组
  const billList = useSelector(state => state.bill.billList)
  const monthGroup = useMemo(() => {
    return _.groupBy(billList, item => dayjs(item.date).format('YYYY-MM'))
  }, [billList])

  // 控制时间选择器打开关闭
  const [dateVisible, setDateVisible] = useState(false)
  const [currentMonthList, setMonthList] = useState([])
  const [currentMonth, setCurrentMonth] = useState(() => {
    return dayjs().format('YYYY-MM')
  })

  const dateConfirm = (date) => {
    setDateVisible(false)
    const monthKey = dayjs(date).format('YYYY-MM')
    setCurrentMonth(monthKey)
    setMonthList(monthGroup[monthKey])
  }

  // 首次加载
  useEffect(() => {
    const list = monthGroup[dayjs().format('YYYY-MM')]
    if(list){
      setMonthList(list)
    }
  }, [monthGroup])

  // 计算统计
  const overview = useMemo(() => {
    if (!currentMonthList) return { income: 0, pay: 0, total: 0 }
    const income = currentMonthList.filter(item => item.type === 'income')
      .reduce((a, c) => a + c.money, 0)
    const pay = currentMonthList.filter(item => item.type === 'pay')
      .reduce((a, c) => a + c.money, 0)
    return {
      income,
      pay,
      total: income + pay
    }
  }, [currentMonthList])

  return (
    <div className="monthlyBill">
      <NavBar className="nav" backArrow={false}>
        月度收支
      </NavBar>
      <div className="content">
        <div className="header">
          {/* 时间切换区域 */}
          <div className="date" onClick={() => setDateVisible(true)}>
            <span className="text">
              {currentMonth} 账单
            </span>
            <span className={classNames('arrow', dateVisible && 'expand')}></span>
          </div>
          {/* 统计区域 */}
          <div className='twoLineOverview'>
            <div className="item">
              <span className="money">{overview.pay.toFixed(2)}</span>
              <span className="type">支出</span>
            </div>
            <div className="item">
              <span className="money">{overview.income.toFixed(2)}</span>
              <span className="type">收入</span>
            </div>
            <div className="item">
              <span className="money">{(overview.total).toFixed(2)}</span>
              <span className="type">结余</span>
            </div>
          </div>
          {/* 时间选择器 */}
          <DatePicker
            className="kaDate"
            title="记账日期"
            precision="month"
            visible={dateVisible}
            max={new Date()}
            onConfirm={dateConfirm}
          />
        </div>
      </div>
    </div >
  )
}

export default Month

月度账单-单日统计列表实现

views / Month / components / DayBill / index.js

1. 准备组件和配套样式

import classNames from 'classnames'
import './index.scss'

const DailyBill = () => {
  return (
    <div className={classNames('dailyBill')}>
      <div className="header">
        <div className="dateIcon">
          <span className="date">{'03月23日'}</span>
          <span className={classNames('arrow')}></span>
        </div>
        <div className="oneLineOverview">
          <div className="pay">
            <span className="type">支出</span>
            <span className="money">{100}</span>
          </div>
          <div className="income">
            <span className="type">收入</span>
            <span className="money">{200}</span>
          </div>
          <div className="balance">
            <span className="money">{100}</span>
            <span className="type">结余</span>
          </div>
        </div>
      </div>
    </div>
  )
}
export default DailyBill

配套样式

.dailyBill {
  margin-bottom: 10px;
  border-radius: 10px;
  background: #ffffff;

  .header {
    --ka-text-color: #888c98;
    padding: 15px 15px 10px 15px;

    .dateIcon {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 21px;
      margin-bottom: 9px;
      .arrow {
        display: inline-block;
        width: 5px;
        height: 5px;
        margin-top: -3px;
        margin-left: 9px;
        border-top: 2px solid #888c98;
        border-left: 2px solid #888c98;
        transform: rotate(225deg);
        transform-origin: center;
        transition: all 0.3s;
      }
      .arrow.expand {
        transform: translate(0, 2px) rotate(45deg);
      }

      .date {
        font-size: 14px;
      }
    }
  }
  .oneLineOverview {
    display: flex;
    justify-content: space-between;

    .pay {
      flex: 1;
      .type {
        font-size: 10px;
        margin-right: 2.5px;
        color: #e56a77;
      }
      .money {
        color: var(--ka-text-color);
        font-size: 13px;
      }
    }

    .income {
      flex: 1;
      .type {
        font-size: 10px;
        margin-right: 2.5px;
        color: #4f827c;
      }
      .money {
        color: var(--ka-text-color);
        font-size: 13px;
      }
    }

    .balance {
      flex: 1;
      margin-bottom: 5px;
      text-align: right;

      .money {
        line-height: 17px;
        margin-right: 6px;
        font-size: 17px;
      }
      .type {
        font-size: 10px;
        color: var(--ka-text-color);
      }
    }
  }

  .billList {
    padding: 15px 10px 15px 15px;
    border-top: 1px solid #ececec;
    .bill {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 43px;
      margin-bottom: 15px;

      &:last-child {
        margin-bottom: 0;
      }

      .icon {
        margin-right: 10px;
        font-size: 25px;
      }
      .detail {
        flex: 1;
        padding: 4px 0;
        .billType {
          display: flex;
          align-items: center;
          height: 17px;
          line-height: 17px;
          font-size: 14px;
          padding-left: 4px;
        }
      }
      .money {
        font-size: 17px;

        &.pay {
          color: #ff917b;
        }
        &.income {
          color: #4f827c;
        }
      }
    }
  }
}
.dailyBill.expand {
  .header {
    border-bottom: 1px solid #ececec;
  }
  .billList {
    display: block;
  }
}

2. 按日分组账单数据

// 把当前月按日分组账单数据
  const dayGroup = useMemo(() => {
    const group = _.groupBy(currentMonthList, (item) => dayjs(item.date).format('YYYY-MM-DD'))
    return {
      dayKeys: Object.keys(group),
      group
    }
  }, [currentMonthList])
  console.log(dayGroup)

3. 遍历日账单组件并传入参数

 {/* 日账单 */}
{dayGroup.dayKeys.map(dayKey => (
  <DailyBill key={dayKey} date={dayKey} billList={dayGroup.group[dayKey]} />
))}

4. 接收数据计算统计渲染页面

const DailyBill = ({ date, billList }) => {
  const dayResult = useMemo(() => {
    // 支出  /  收入  / 结余
    const pay = billList.filter(item => item.type === 'pay').reduce((a, c) => a + c.money, 0)
    const income = billList.filter(item => item.type === 'income').reduce((a, c) => a + c.money, 0)
    return {
      pay,
      income,
      total: pay + income
    }
  }, [billList])
  return (
    <div className={classNames('dailyBill')}>
      <div className="header">
        <div className="dateIcon">
          <span className="date">{date}</span>
        </div>
        <div className="oneLineOverview">
          <div className="pay">
            <span className="type">支出</span>
            <span className="money">{dayResult.pay.toFixed(2)}</span>
          </div>
          <div className="income">
            <span className="type">收入</span>
            <span className="money">{dayResult.income.toFixed(2)}</span>
          </div>
          <div className="balance">
            <span className="money">{dayResult.total.toFixed(2)}</span>
            <span className="type">结余</span>
          </div>
        </div>
      </div>
    </div>
  )
}

export default DailyBill

月度账单-单日账单列表展示

1. 渲染基础列表

{/* 单日列表 */}
<div className="billList">
  {billList.map(item => {
    return (
      <div className="bill" key={item.id}>
        <div className="detail">
          <div className="billType">{item.useFor}</div>
        </div>
        <div className={classNames('money', item.type)}>
          {item.money.toFixed(2)}
        </div>
      </div>
    )
  })}
</div>

2. 适配Type

1-准备静态数据

src / contants / index.js

export const billListData = {
  pay: [
    {
      type: 'foods',
      name: '餐饮',
      list: [
        { type: 'food', name: '餐费' },
        { type: 'drinks', name: '酒水饮料' },
        { type: 'dessert', name: '甜品零食' },
      ],
    },
    {
      type: 'taxi',
      name: '出行交通',
      list: [
        { type: 'taxi', name: '打车租车' },
        { type: 'longdistance', name: '旅行票费' },
      ],
    },
    {
      type: 'recreation',
      name: '休闲娱乐',
      list: [
        { type: 'bodybuilding', name: '运动健身' },
        { type: 'game', name: '休闲玩乐' },
        { type: 'audio', name: '媒体影音' },
        { type: 'travel', name: '旅游度假' },
      ],
    },
    {
      type: 'daily',
      name: '日常支出',
      list: [
        { type: 'clothes', name: '衣服裤子' },
        { type: 'bag', name: '鞋帽包包' },
        { type: 'book', name: '知识学习' },
        { type: 'promote', name: '能力提升' },
        { type: 'home', name: '家装布置' },
      ],
    },
    {
      type: 'other',
      name: '其他支出',
      list: [{ type: 'community', name: '社区缴费' }],
    },
  ],
  income: [
    {
      type: 'professional',
      name: '其他支出',
      list: [
        { type: 'salary', name: '工资' },
        { type: 'overtimepay', name: '加班' },
        { type: 'bonus', name: '奖金' },
      ],
    },
    {
      type: 'other',
      name: '其他收入',
      list: [
        { type: 'financial', name: '理财收入' },
        { type: 'cashgift', name: '礼金收入' },
      ],
    },
  ],
}

// 目的是将 billListData 中的数据转换为一个对象 billTypeToName,然后调用的时候就通过属性名来得到属性值
export const billTypeToName = Object.keys(billListData).reduce((prev, key) => {
  billListData[key].forEach(bill => {
    bill.list.forEach(item => {
      prev[item.type] = item.name
    })
  })
  return prev
}, {})

2-适配type

导入

import { billTypeToName } from "@/contants";

 <div className="billType">{billTypeToName[item.useFor]}</div>

月度账单-切换打开关闭

// 声明状态
const [visible, setVisible] = useState(false)

// 控制箭头
 <span 
   className={classNames('arrow', !visible && 'expand')} 
   onClick={() => setVisible(!visible)}></span>
     
// 控制列表显示
<div className="billList" style={{ display: !visible && 'none' }}></div>

月度账单-Icon组件封装

src / components / Icon /index.js

1. 准备静态结构

const Icon = () => {
  return (
    <img
      src={`https://yjy-teach-oss.oss-cn-beijing.aliyuncs.com/reactbase/ka/food.svg`}
      alt="icon"
      style={{
        width: 20,
        height: 20,
      }}
      />
  )
}

export default Icon

2. 设计参数

传递参数：

  <Icon type={item.useFor}></Icon>

const BASE_URL = 'https://yjy-teach-oss.oss-cn-beijing.aliyuncs.com/reactbase/ka/'

const Icon = ({ type }) => {
  return (
    <img
      src={`${BASE_URL + type}.svg`}
      alt="icon"
      style={{
        width: 20,
        height: 20,
      }}
    />
  )
}

export default Icon

3. 使用组件

<div className="billList" style={{ display: visible ? 'block' : 'none' }}>
    {billList.map(item => {
      return (
        <div className="bill" key={item.id}>
          <Icon type={item.useFor} />
        </div>
      )
    })}
  </div>

记账功能

记账 - 结构渲染

views/ New / index.js

import { Button, DatePicker, Input, NavBar } from 'antd-mobile'
import Icon from '@/components/Icon'
import './index.scss'
import classNames from 'classnames'
import { billListData } from '@/contants'
import { useNavigate } from 'react-router-dom'

const New = () => {
  const navigate = useNavigate()
  return (
    <div className="keepAccounts">
      <NavBar className="nav" onBack={() => navigate(-1)}>
        记一笔
      </NavBar>

      <div className="header">
        <div className="kaType">
          <Button
            shape="rounded"
            className={classNames('selected')}
          >
            支出
          </Button>
          <Button
            className={classNames('')}
            shape="rounded"
          >
            收入
          </Button>
        </div>

        <div className="kaFormWrapper">
          <div className="kaForm">
            <div className="date">
              <Icon type="calendar" className="icon" />
              <span className="text">{'今天'}</span>
              <DatePicker
                className="kaDate"
                title="记账日期"
                max={new Date()}
              />
            </div>
            <div className="kaInput">
              <Input
                className="input"
                placeholder="0.00"
                type="number"
              />
              <span className="iconYuan">¥</span>
            </div>
          </div>
        </div>
      </div>

      <div className="kaTypeList">
        {billListData['pay'].map(item => {
          return (
            <div className="kaType" key={item.type}>
              <div className="title">{item.name}</div>
              <div className="list">
                {item.list.map(item => {
                  return (
                    <div
                      className={classNames(
                        'item',
                        ''
                      )}
                      key={item.type}

                    >
                      <div className="icon">
                        <Icon type={item.type} />
                      </div>
                      <div className="text">{item.name}</div>
                    </div>
                  )
                })}
              </div>
            </div>
          )
        })}
      </div>

      <div className="btns">
        <Button className="btn save">
          保 存
        </Button>
      </div>
    </div>
  )
}

export default New

配套样式

.keepAccounts {
  --ka-bg-color: #daf2e1;
  --ka-color: #69ae78;
  --ka-border-color: #191d26;

  height: 100%;
  background-color: var(--ka-bg-color);

  .nav {
    --adm-font-size-10: 16px;
    color: #121826;
    background-color: transparent;
    &::after {
      height: 0;
    }

    .adm-nav-bar-back-arrow {
      font-size: 20px;
    }
  }

  .header {
    height: 132px;

    .kaType {
      padding: 9px 0;
      text-align: center;

      .adm-button {
        --adm-font-size-9: 13px;

        &:first-child {
          margin-right: 10px;
        }
      }
      .selected {
        color: #fff;
        --background-color: var(--ka-border-color);
      }
    }

    .kaFormWrapper {
      padding: 10px 22.5px 20px;

      .kaForm {
        display: flex;
        padding: 11px 15px 11px 12px;
        border: 0.5px solid var(--ka-border-color);
        border-radius: 9px;
        background-color: #fff;

        .date {
          display: flex;
          align-items: center;
          height: 28px;
          padding: 5.5px 5px;
          border-radius: 4px;
          // color: #4f825e;
          color: var(--ka-color);
          background-color: var(--ka-bg-color);

          .icon {
            margin-right: 6px;
            font-size: 17px;
          }
          .text {
            font-size: 16px;
          }
        }

        .kaInput {
          flex: 1;
          display: flex;
          align-items: center;

          .input {
            flex: 1;
            margin-right: 10px;
            --text-align: right;
            --font-size: 24px;
            --color: var(--ka-color);
            --placeholder-color: #d1d1d1;
          }

          .iconYuan {
            font-size: 24px;
          }
        }
      }
    }
  }

  .container {
  }
  .kaTypeList {
    height: 490px;
    padding: 20px 11px;
    padding-bottom: 70px;
    overflow-y: scroll;
    background: #ffffff;
    border-radius: 20px 20px 0 0;
    -ms-overflow-style: none; /* Internet Explorer 10+ */
    scrollbar-width: none; /* Firefox */
    &::-webkit-scrollbar {
      display: none; /* Safari and Chrome */
    }

    .kaType {
      margin-bottom: 25px;
      font-size: 12px;
      color: #333;

      .title {
        padding-left: 5px;
        margin-bottom: 5px;
        font-size: 13px;
        color: #808080;
      }
      .list {
        display: flex;

        .item {
          width: 65px;
          height: 65px;
          padding: 9px 0;
          margin-right: 7px;
          text-align: center;
          border: 0.5px solid #fff;
          &:last-child {
            margin-right: 0;
          }

          .icon {
            height: 25px;
            line-height: 25px;
            margin-bottom: 5px;
            font-size: 25px;
          }
        }
        .item.selected {
          border: 0.5px solid var(--ka-border-color);
          border-radius: 5px;
          background: var(--ka-bg-color);
        }
      }
    }
  }

  .btns {
    position: fixed;
    bottom: 15px;
    width: 100%;
    text-align: center;

    .btn {
    width: 200px;
    --border-width: 0;
    --background-color: #fafafa;
    --text-color: #616161;
    &:first-child {
    margin-right: 15px;
    }
    }
    .btn.save {
    --background-color: var(--ka-bg-color);
    --text-color: var(--ka-color);
    }
    }
  }

记账 - 支出和收入切换

const new = ()=>{
  // 1. 区分账单状态
  const [billType, setBillType] = useState('income')
  return (
     <div className="keepAccounts">
      <div className="kaType">
        {/* 2. 点击切换状态 */}
        <Button
          shape="rounded"
          className={classNames(billType==='pay'?'selected':'')}
          onClick={() => setBillType('pay')}
        >
          支出
        </Button>
        <Button
          className={classNames(billType==='income'?'selected':'')}
          onClick={() => setBillType('income')}
          shape="rounded"
        >
          收入
        </Button>
      </div>
      {/* 2. 适配数据 */}
      <div className="kaTypeList">
          {billListData[billType].map(item => {
            
          })}
      </div>
    </div>
  )
}

记账 - 新增一笔

1. 组件中收集接口数据

import { useDispatch } from 'react-redux'

const New = () => {
  // 收集金额
  const [money, setMoney] = useState(0)
  const moneyChange = (value) => {
    setMoney(value)
  }

  // 收集账单类型
  const [useFor, setUseFor] = useState('')
  const dispatch = useDispatch()
  // 保存账单
  const saveBill = () => {
    // 收集表单数据
    const data = {
      type: billType,
      money: billType === 'pay' ? -money : +money,
      date: new Date(),
      useFor: useFor
    }
    console.log(data)
    dispatch(addBillList(data))
  }
  return (
    <div className="keepAccounts">
      <NavBar className="nav" onBack={() => navigate(-1)}>
        记一笔
      </NavBar>

      <div className="header">
        <div className="kaType">
          <Button
            shape="rounded"
            className={classNames(billType === 'pay' ? 'selected' : '')}
            onClick={() => setBillType('pay')}
          >
            支出
          </Button>
          <Button
            className={classNames(billType === 'income' ? 'selected' : '')}
            shape="rounded"
            onClick={() => setBillType('income')}
          >
            收入
          </Button>
        </div>

        <div className="kaFormWrapper">
          <div className="kaForm">
            <div className="date">
              <Icon type="calendar" className="icon" />
              <span className="text">{'今天'}</span>
              <DatePicker
                className="kaDate"
                title="记账日期"
                max={new Date()}
              />
            </div>
            <div className="kaInput">
              <Input
                className="input"
                placeholder="0.00"
                type="number"
                value={money}
                onChange={moneyChange}
              />
              <span className="iconYuan">¥</span>
            </div>
          </div>
        </div>
      </div>

      <div className="kaTypeList">
        {/* 数据区域 */}
        {billListData[billType].map(item => {
          return (
            <div className="kaType" key={item.type}>
              <div className="title">{item.name}</div>
              <div className="list">
                {item.list.map(item => {
                  return (
                    <div
                      className={classNames(
                        'item',
                        ''
                      )}
                      key={item.type}
                      onClick={() => setUseFor(item.type)}
                    >
                      <div className="icon">
                        <Icon type={item.type} />
                      </div>
                      <div className="text">{item.name}</div>
                    </div>
                  )
                })}
              </div>
            </div>
          )
        })}
      </div>

      <div className="btns">
        <Button className="btn save" onClick={saveBill}>
          保 存
        </Button>
      </div>
    </div>
  )
}

export default New

2. 在Redux中编写异步代码

 // 同步添加账单方法
    addBill(state,action){
        state.billList.push(action.payload)
    }



//异步请求
const addBillList = (data) => {
  return async (dispatch) => {
    // 传递data数据
    const res = await axios.post("http://localhost:8888/ka", data);
    dispatch(addBill(res.data));
  };
};

3. 点击保存提交action

import { useDispatch } from "react-redux";


  // 点击按钮保存账单
  const saveBill = () => {
    console.log("money", money);

    const data = {
      type: billType,
      money: billType === "pay" ? -1 * money : money,
      data: new Date(),
      useFor: type,
    };
    console.log("data", data);

    dispatch(addBillList(data));  // 提交数据
  };

4. 选中的图标是激活状态

 className={classNames(
                        "item",
                        type === item.type && "selected"
                      )}
                      key={item.type}

5. 时间选择

6. 如果日期是今天就显示"今天"而不是2024-04-15

 const [selectedDate, setSelectedDate] = useState(new Date());<span className="text">
                {selectedDate === new Date()
                  ? "今天"
                  : dayjs(selectedDate).format("YYYY-MM-DD")}
              </span>

为什么二者不相等

在 JavaScript 中，两个对象即使它们包含相同的属性和值，但它们引用的内存地址不同，因此它们是不相等的。在这种情况下，selectedDate 是一个 Date 对象，new Date() 创建了一个新的 Date 对象，并且 selectedDate 也是一个 Date 对象，尽管它们的值可能相同，但它们引用的内存地址不同，所以它们是不相等的。

要比较两个日期对象的值是否相等，你应该比较它们的时间戳或者转换为字符串后再进行比较，例如：

selectedDate.getTime() === new Date().getTime()

或者：

selectedDate.toISOString() === new Date().toISOString()

这样可以确保比较的是它们的值而不是引用。