用React刻自己的投资Dashboard Day25 - 制作汉堡选单

tags: `2021铁人赛` `React`

安装styled-components套件

在专案资料夹内一行安装就完成了。

npm install --save styled-components

制作汉堡选单图示

这边是参考网路上的写法，因为连图示都写实用程序码写在是蛮酷的，就把它复制下来了。

src\UI\Burger\Burger.js

import React from 'react';
import { StyledBurger } from './Burger.styled';

const Burger = () => {
  return (
    <StyledBurger>
      <div />
      <div />
      <div />
    </StyledBurger>
  )
}

export default Burger;

src\UI\Burger\Burger.styled.js

import styled from 'styled-components';

export const StyledBurger = styled.button`
  position: absolute;
  top: 1rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 1.5rem;
  height: 2rem;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  
  div {
    width: 2rem;
    height: 0.25rem;
    background: #787676;
    border-radius: 10px;
    position: relative;
    transform-origin: 1px;
  }

  @media screen and (min-width: 576px) {
    div {
      visibility: hidden;
    }
  }
`;

制作选单列表

点开汉堡选单的三条线图示之後，会跳出选单列表，这边就来制作选单列表。
src\UI\Menu\Menu.js

import React from 'react';
import { StyledMenu } from './Menu.styled';

const Menu = () => {
  return (
    <StyledMenu>
      <a href="/">
        首页
      </a>
      <a href="/macroeconomics">
        总体经济
      </a>
    </StyledMenu>
  )
}

export default Menu;

src\UI\Menu\Menu.styled.js

import styled from 'styled-components';

export const StyledMenu = styled.nav`
  visibility: hidden;
  width: 30%;
  box-shadow: 0px 2px 5px gray;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: #89CCE0;
  text-align: left;
  padding: 0.5rem;
  position: absolute;
  top: 61px;
  right: 0;

  a {
    font-size: 1rem;
    padding-bottom: 0.5rem;
    font-weight: bold;
    color: #787676;
    text-decoration: none;
  }
`;

将汉堡选单与选单列表插入导览列

制作好上述两个元件之後，就可以把它放入Navbar罗!
src\components\Navbar\Navbar.js

import React, { useState } from 'react';
import styles from './Navbar.module.css';
import Navbar from 'react-bootstrap/Navbar';
import svgIcon from './navbaricon.svg';
import Nav from 'react-bootstrap/Nav';
// 新增元件
import Burger from '../../UI/Burger/Burger';
import Menu from '../../UI/Menu/Menu';

const Topbar = (props) => {
  return (
    <Navbar className={styles.navbar}>
      ...
      <Burger />
      <Menu />
    </Navbar>
  );
};

export default Topbar;