Vue3 项目开发技巧01：项目动画
弹跳方块加载动画
此演示仅在桌面端浏览器中可用
实现方式 1
主要依赖于定位、动画。
需要在 main.js 中添加如下代码：
js
// 移除开屏加载动画
const removeLoading = () => {
const element = document.getElementById("loading-box");
element?.remove();
};在 gin-vue-admin 项目中，是在 permission.js 中去调用 removeLoading 函数。
html
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width,initial-scale=1.0" />
<link rel="icon" href="/favicon.ico" />
<title></title>
<style>
body {
margin: 0;
--bg-color: #409eff;
}
#loading-box {
position: relative;
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
width: 100vw;
}
#loading-text {
position: absolute;
bottom: calc(50% - 100px);
left: 0;
width: 100%;
text-align: center;
color: #666;
font-size: 14px;
}
#loading {
position: absolute;
top: calc(50% - 20px);
left: calc(50% - 20px);
}
#box {
width: 50px;
height: 50px;
background: var(--bg-color);
animation: animate 0.5s linear infinite;
position: absolute;
top: 0;
left: 0;
border-radius: 3px;
}
@keyframes animate {
17% {
border-bottom-right-radius: 3px;
}
25% {
transform: translateY(9px) rotate(22.5deg);
}
50% {
transform: translateY(18px) scale(1, 0.9) rotate(45deg);
border-bottom-right-radius: 40px;
}
75% {
transform: translateY(9px) rotate(67.5deg);
}
100% {
transform: translateY(0) rotate(90deg);
}
}
#shadow {
width: 50px;
height: 5px;
background: #000;
opacity: 0.1;
position: absolute;
top: 59px;
left: 0;
border-radius: 50%;
animation: shadow 0.5s linear infinite;
}
.dark #shadow {
background: #fff;
}
@keyframes shadow {
50% {
transform: scale(1.2, 1);
}
}
</style>
</head>
<body>
<div id="loading-box">
<div id="loading">
<div id="shadow"></div>
<div id="box"></div>
</div>
<div id="loading-text">系统正在加载中...</div>
</div>
<div id="app"></div>
<script type="module" src="./src/main.js"></script>
</body>
</html>实现方式 2
主要依赖于伪元素、动画。
优点：无需手动移除加载动画，当页面加载完成后，自动移除加载动画。
html
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>wanglei-shuaige~</title>
<style>
body {
margin: 0;
padding: 0;
background-color: #f6fafd;
}
.loader-body {
width: 100vw;
height: 100vh;
display: flex;
align-items: center;
justify-content: center;
overflow: hidden;
}
.loader {
width: 48px;
height: 48px;
margin: auto;
position: relative;
}
.loader:before {
content: "";
width: 48px;
height: 5px;
background: #f0808050;
position: absolute;
top: 60px;
left: 0;
border-radius: 50%;
animation: shadow324 0.5s linear infinite;
}
.loader:after {
content: "";
width: 100%;
height: 100%;
background: #f08080;
position: absolute;
top: 0;
left: 0;
border-radius: 4px;
animation: jump7456 0.5s linear infinite;
}
@keyframes jump7456 {
15% {
border-bottom-right-radius: 3px;
}
25% {
transform: translateY(9px) rotate(22.5deg);
}
50% {
transform: translateY(18px) scale(1, 0.9) rotate(45deg);
border-bottom-right-radius: 40px;
}
75% {
transform: translateY(9px) rotate(67.5deg);
}
100% {
transform: translateY(0) rotate(90deg);
}
}
@keyframes shadow324 {
0%,
100% {
transform: scale(1, 1);
}
50% {
transform: scale(1.2, 1);
}
}
</style>
</head>
<body>
<div id="app">
<div class="loader-body">
<div class="loader"></div>
</div>
</div>
<script type="module" src="/src/main.ts"></script>
</body>
</html>全局过渡效果
同样的在 /index.html 中进行改造。
- 在根节点
html上添加一个自定义类名。
html
<html lang="zh-cn" class="transition-colors"></html>- 在
<style>中添加全局过渡效果。
css
.transition-colors {
/*
指定了哪些CSS属性会有过渡效果
- 文字颜色(color)
- 背景色(background-color)
- 边框颜色(border-color)
- 文字装饰颜色(text-decoration-color)
- SVG填充色(fill)
- SVG描边色(stroke)
*/
transition-property: color, background-color, border-color,
text-decoration-color, fill, stroke;
/* 定义了过渡的时间曲线 */
transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
/* 定义了过渡的时间 */
transition-duration: 150ms;
}十字旋转加载动画
此演示仅在桌面端浏览器中可用
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>wanglei.live</title>
</head>
<style>
.container {
display: flex;
flex-direction: column;
align-items: center;
}
.desc {
font-size: 14px;
color: #3273dc;
margin-top: 10px;
}
.spin {
width: 50px;
/* 保持宽高比为1:1的正方形 */
aspect-ratio: 1;
/* farthest-side表示渐变会延伸到最远的边 */
--_c: no-repeat radial-gradient(farthest-side, #3273dc 92%, #0000);
background: var(--_c) top, /* 顶部渐变 */ var(--_c) left,
/* 左侧渐变 */ var(--_c) right, /* 右侧渐变 */ var(--_c) bottom; /* 底部渐变 */
background-size: 14px 14px; /* 每个渐变的尺寸 */
animation: spin 1s infinite; /* 应用名为spin的动画 */
}
@keyframes spin {
to {
transform: rotate(0.5turn); /* 旋转180度(0.5圈) */
}
}
</style>
<body>
<div class="container">
<div class="spin"></div>
<div class="desc">wanglei.live</div>
</div>
</body>
</html>开发技巧
在进行 vue 开发时，可以考虑通过操作 dom 的方式将动画节点添加到#app节点下。而不是直接写在#app节点下。
这样的好处是用户可以自定义全局颜色（包含加载动画颜色）
旋转点阵加载动画
此演示仅在桌面端浏览器中可用
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/vue.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>wanglei.live</title>
</head>
<body>
<div id="app">
<style>
html,
body,
#app {
width: 100%;
height: 100%;
padding: 0;
margin: 0;
}
.loading-box {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
width: 100%;
height: 100%;
}
.loading-box .loading-wrap {
display: flex;
align-items: center;
justify-content: center;
padding: 98px;
}
.dot {
position: relative;
box-sizing: border-box;
display: inline-block;
width: 32px;
height: 32px;
font-size: 32px;
transform: rotate(45deg);
animation: ant-rotate 1.2s infinite linear;
}
.dot i {
position: absolute;
display: block;
width: 14px;
height: 14px;
background-color: #409eff;
border-radius: 100%;
opacity: 0.3;
transform: scale(0.75);
transform-origin: 50% 50%;
animation: ant-spin-move 1s infinite linear alternate;
}
.dot i:nth-child(1) {
top: 0;
left: 0;
}
.dot i:nth-child(2) {
top: 0;
right: 0;
animation-delay: 0.4s;
}
.dot i:nth-child(3) {
right: 0;
bottom: 0;
animation-delay: 0.8s;
}
.dot i:nth-child(4) {
bottom: 0;
left: 0;
animation-delay: 1.2s;
}
@keyframes ant-rotate {
to {
transform: rotate(405deg);
}
}
@keyframes ant-spin-move {
to {
opacity: 1;
}
}
</style>
<div class="loading-box">
<div class="loading-wrap">
<span class="dot dot-spin"><i></i><i></i><i></i><i></i></span>
</div>
</div>
</div>
<script>
const globalState = JSON.parse(
window.localStorage.getItem("geeker-global")
);
if (globalState) {
const dot = document.querySelectorAll(".dot i");
const html = document.querySelector("html");
dot.forEach((item) => (item.style.background = globalState.primary));
if (globalState.isDark) html.style.background = "#141414";
}
</script>
<script type="module" src="/src/main.ts"></script>
</body>
</html>