react实现一个支持暗黑模式与亮色的可伸缩菜单栏效果代码-html代码-BFW代码库

代码语言：html

代码描述：react实现一个支持暗黑模式与亮色的可伸缩菜单栏效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en" >

<head>

  <meta charset="UTF-8">
  

<link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/normalize.5.0.css">
  
  
<style>
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap");
* {
  box-sizing: border-box;
}

body {
  --main-bg: #f5f4fd;
  --item-hover: #f9f8fb;
  --secondary-bg: #251d33;
  --main-container-bg: #fff;
  --container-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
  --text-color: #00071d;
}

body.dark {
  --main-bg: #00071d;
  --item-hover: #1c2339;
  --secondary-bg: #36415e;
  --main-container-bg: #131c31;
  --text-color: #fff;
  --tooltip-bg: #251d33;
  --container-shadow: rgba( #131c31, 0.2) 0px 7px 29px 0px;
}

html, body {
  width: 100%;
  margin: 0;
  height: 100%;
  font-family: "Poppins", sans-serif;
}

body {
  background-color: var(--main-bg);
  transition: 0.3s ease-in-out;
  display: flex;
  justify-content: center;
  align-items: center;
}

.sidebar-wrapper {
  display: flex;
  flex-direction: column;
  height: 100%;
}
@media screen and (max-height: 520px) {
  .sidebar-wrapper {
    overflow-y: auto;
    overflow-x: hidden;
  }
}
.sidebar-container {
  background-color: var(--main-container-bg);
  box-shadow: var(--container-shadow);
  border-radius: 10px;
  padding: 16px;
  transition: width 0.3s ease-in-out;
  position: relative;
  width: 240px;
  height: 100vh;
  max-height: 600px;
}
.sidebar-container.shrink {
  width: 92px;
}
.sidebar-themeInput {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}
.sidebar-themeInputText {
  font-size: 14px;
  opacity: 1;
  transform: translatex(0);
  transition: 0.2s ease-in-out;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.shrink .sidebar-themeInputText {
  width: 0;
  opacity: 0;
  transform: translatex(-8px);
}
.sidebar-themeType {
  width: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 8px;
  text-align: center;
  z-index: 1;
  flex-shrink: 0;
  line-height: 20px;
}
.shrink .sidebar-themeType {
  width: 100%;
}
.sidebar-themeContainer {
  padding: 4px;
  border-radius: 4px;
  color: var(--text-color);
  overflow: hidden;
  background-color: var(--main-bg);
  overflow: hidden;
  flex-shrink: 0;
}
.sidebar-themeLabel {
  display: flex;
  justify-content: space-between;
  position: relative;
  cursor: pointer;
}
.sidebar-themeLabel svg {
  width: 18px;
  height: 18px;
}
.shrink .sidebar-themeLabel.switched .light {
  display: none;
}
.sidebar-themeLabel.switched:before {
  left: 50%;
}
.shrink .sidebar-themeLabel.switched:before {
  left: 2px;
}
.sidebar-themeLabel:not(.switched) .shrink .sidebar-themeLabel .dark {
  display: none;
}
.sidebar-themeLabel:before {
  content: "";
  position: absolute;
  z-index: 0;
  display: inline-block;
  width: calc(50% - 2px);
  height: calc(100% - 4px);
  border-radius: 4px;
  background-color: var(--main-container-bg);
  left: 2px;
  top: 50%;
  transform: translatey(-50%);
  transition: left 0.3s ease;
}
.shrink .sidebar-themeLabel:before {
  width: calc(100% - 4px);
}
.sidebar-viewButton {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: none;
  right: -10px;
  top: 32px;
  display: flex;
  align-items: center;
  padding: 0;
  cursor: pointer;
  transition: 0.3s ease-in-out;
  color: #fff;
  box-shadow: var(--container-shadow);
  background-color: var(--secondary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sidebar-viewButton:hover {
  opacity: 0.8;
}
.sidebar-viewButton svg {
  width: 16px;
}
.shrink .sidebar-viewButton {
  transform: rotatey(-180deg);
}
.sidebar-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}
.sidebar-listItem {
  color: var(--text-color);
  display: flex;
  align-items: center;
  -webkit-animation: fadeInItem 0.6s forwards;
          animation: fadeInItem 0.6s forwards;
  transition: background 0.2s ease-in;
  transform: translatex(-16px);
  opacity: 0;
  padding: 8px 0;
  position: relative;
}
.shrink .sidebar-listItem span {
  visibility: hidden;
}
.sidebar-listItem.active a {
  background-color: var(--main-bg);
}
.sidebar-listItem:not(.active) a:hover {
  background-color: var(--item-hover);
}
.sidebar-listItem:hover .sidebar-listItemText {
  display: inline-block;
  opacity: 1;
  left: calc(100% + 8px);
  visibility: visible;
}
.sidebar-listItem + li {
  border-top: 1px solid var(--item-hover);
}
.sidebar-listItem a {
  width: 100%;
  padding: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  cursor: pointer;
}
.sidebar-listIcon {
  width: 20px;
  height: 20px;
  display: inline-block;
  margin-right: 8px;
  flex-shrink: 0;
}
.shrink .sidebar-listIcon {
  margin-right: 0;
}
.sidebar-profileSection {
  display: flex;
  align-items: center;
  margin-top: auto;
  border: 1px solid var(--item-hover);
  padding: 8px 10px;
  border-radius: 28px;
  overflow: hidden;
  height: 60px;
  flex-shrink: 0;
  transition: background 0.3s ease-in-out;
  cursor: pointer;
}
.sidebar-profileSection:hover {
  background-color: var(--item-hover);
}
.sidebar-profileSection img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  -o-object-fit: cover;
     object-fit: cover;
  margin-right: 8px;
  flex-shrink: 0;
}
.sidebar-profileSection span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-color);
}
.shrink .sidebar-profileSection span {
  display: none;
}
.shrink .sidebar-profileSection {
  border-radius: 50%;
}
.sidebar-listItemText {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 20px;
}

.shrink .sidebar-listItemText {
  position: absolute;
  padding: 8px;
  left: 100%;
  opacity: 0;
  background-color: var(--secondary-bg);
  color: #fff;
  font-size: 12px;
  border-radius: 4px;
  transition: left 0.3s ease-in-out, opacity 0.3s ease-in-out;
}

.sidebar-listItem:nth-child(n+0) {
  -webkit-animation-delay: 0s;
          animation-delay: 0s;
}

.sidebar-listItem:nth-child(n+1) {
  -webkit-animation-delay: 0.2s;
          animation-delay: 0.2s;
}

.sidebar-listItem:nth-child(n+2) {
  -webkit-animation-delay: 0.4s;
          animation-delay: 0.4s;
}

.sidebar-listItem:nth-child(n+3) {
  -webkit-animation-delay: 0.6s;
          animation-delay: 0.6s;
}

.sidebar-listItem:nth-child(n+4) {
  -webkit-animation-delay: 0.8s;
          animation-delay: 0.8s;
}

.sidebar-listItem:nth-child(n+5) {
  -webkit-animation-delay: 1s;
          animation-delay: 1s;
}

@-webkit-keyframes fadeInItem {
  100% {
    transform: translatex(0px);
    opacity: 1;
  }
}

@keyframes fadeInItem {
  100% {
    transform: translatex(0px);
    opacity: 1;
  }
}
</style>



</head>

<body  >
  <div id="root"></div>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/babel.min.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/react.production.17.1.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/react-dom.production.17.1.js"></script>
<script type="text/babel">
const { useState } = React;

const Sidebar = () => {
  const [isShrinkView, setIsShrinkView] = React.useState(false);
  const [isDarkMode, setIsDarkMode] = React.useState(false);

  const handleSidebarView = () => {
    setIsShrinkView(!isShrinkView);
  };

  const handleThemeChange = () => {
    setIsDarkMode(!isDarkMode);
    document.body.classList.toggle("dark");
  };

  return (
    <div className={`sidebar-container${isShrinkView ? " shrink" : ""}`}>
      <button
        className="sidebar-viewButton"
        type="button"
        aria-label={isShrinkView ? "Expand Sidebar" : "Shrink Sidebar"}
        title={isShrinkView ? "Expand" : "Shrink"}
        onClick={handleSidebarView}
      >
        <svg
          xmlns="http://www.w3.org/2000/svg"
          width="24"
          height="24"
          viewBox="0 0 24 24".........完整代码请登录后点击上方下载按钮下载查看