这篇文章主要介绍“基于Vue3怎么实现图片散落效果”，在日常操作中，相信很多人在基于Vue3怎么实现图片散落效果问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”基于Vue3怎么实现图片散落效果”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
效果图
原理
图片破裂效果说白了就是搞了100个div，每个div都有自己的背景图片，通过backgroundPosition属性来控制每个div的背景图片方位，最后拼在一起，就像一张完整的图片一样，给每个div都加上动画效果，每个div的旋转角度不同，移动距离不同，移动方位不同来让整个图片像玻璃一样散开来。
HTML结构
这里用到了两个div，#break是用作为100个div的容器，#InBox是用来绑定下一张的背景图片
<div id="animateBox" v-show="showImg"> <div id="break"></div> <div id="InBox"></div></div>准备5张图片
import bgImg5 from '../../assets/img/1/y1.png'import bgImg4 from '../../assets/img/1/y2.png'import bgImg3 from '../../assets/img/1/y3.png'import bgImg2 from '../../assets/img/1/y4.png'import bgImg6 from '../../assets/img/1/y5.png'import { ref, onMounted, onUnmounted } from 'vue'let index = 0onMounted(() => { let imageSrcArr = [bgImg2, bgImg3, bgImg4, bgImg5, bgImg6] let imgloadPromiseArr: Array<Promise<HTMLImageElement>> = [] let imageArr: Array<string> = [] for (let i = 0; i < imageSrcArr.length; i++) { imgloadPromiseArr[i] = new Promise((resolve, reject) => { let img = new Image() img.src = imageSrcArr[i] img.onload = () => { resolve(img) } }) } imgloadPromiseArr.forEach(item => { item.then(res => { imageArr.push(`url(${(<HTMLImageElement>res).currentSrc})`) index = imageArr.length }) }) })创建div
通过createElement创建200个div，每个div绑定长宽，给div添加背景图片，使用backgroundPosition来让整个div变得像一张图片，给div绑定动画效果。
for (let i = 0; i < 100; i++) { let div = document.createElement('div') let div1 = document.createElement('div') div.style.width = '76px' div.style.height = '41px' // 这里为什么是41px后面会提到 div1.style.width = '76px' div1.style.height = '40px' div1.style.overflow = 'hidden' div.style.boxSizing = 'border-box' div.style.backgroundImage = imageArr[0] let positionX = -(i % 10) * 76 + 'px' let positionY = -Math.floor(i / 10) * 40 + 'px' div.style.backgroundPosition = positionX + ' ' + positionY div.style.backgroundSize = '760px 400px' let style = document.styleSheets[0] style.insertRule(`@keyframes secondrotate${i} { 0%,30%{ transform:scale(1) } 70% {transform: rotateX(${180 + Math.random() * 720}deg) rotateY(${180 + Math.random() * 720}deg)} 100% {transform: rotateX(${180 + Math.random() * 720}deg) rotateY(${180 + Math.random() * 720}deg)} }`) style.insertRule(`@keyframes secondrotateS${i} { 0%,32%{ transform:scale(1);opacity:1; }70% {transform: translateZ(${300 + Math.random() * 1500}px) translate(${(0.5 - Math.random()) * 500}px,${ (0.5 - Math.random()) * 500 }px);opacity:0} 100% {transform: translateZ(${300 + Math.random() * 1500}px) translate(${(0.5 - Math.random()) * 500}px,${ (0.5 - Math.random()) * 500 }px);opacity:0} }`) div1.style.animation = `secondrotateS${i} 4.5s ease-out infinite` div.style.animation = `secondrotate${i} 4.5s ease-out infinite` div.style.transformOrigin = `center center` div1.appendChild(div) dom.appendChild(div1)}切换背景图片
通过zIndex来让当前展示的div是哪一个
前面说过，InBox是展示的下一张图片，在breakBox散落完成之后，让breakBox的zIndex降低，展示出下一张图片，随后带有100个div的breakBox完成下一张图片的渲染，zIndex提高，展示出来
let count = 0 let repeat = true let breakBox: HTMLDivElement = document.querySelector('#break')! let InBox: HTMLDivElement = document.querySelector('#InBox')! function changeImage(InBox: HTMLDivElement) { if (repeat) { breakBox.style.zIndex = '-10' count++ count = count === index ? 0 : count repeat = false setTimeout(() => { repeat = true breakBox.style.zIndex = '100' let currentImageLength = count === index - 1 ? 0 : count + 1 InBox.style.backgroundImage = imageArr[currentImageLength] }, 1000) } }每次动画完成之后会去调上面这个方法，为了能在div碎片破碎完毕，展示下一张图片，使用定时器将该方法进行延迟处理 4s是因为div碎片在4s后完全消失。（动画在运行70%的时候，透明度为0）
const timer1 = ref<number>()const timer2 = ref<number>()for (let i = 0; i < 100; i++) { let div = document.createElement('div') let div1 = document.createElement('div') div.style.width = '76px' div.style.height = '41px' div1.style.width = '76px' div1.style.height = '40px' div1.style.overflow = 'hidden' div.style.boxSizing = 'border-box' div.style.backgroundImage = imageArr[0] let positionX = -(i % 10) * 76 + 'px' let positionY = -Math.floor(i / 10) * 40 + 'px' div.style.backgroundPosition = positionX + ' ' + positionY div.style.backgroundSize = '760px 400px' let style = document.styleSheets[0] style.insertRule(`@keyframes secondrotate${i} { 0%,30%{ transform:scale(1) } 70% {transform: rotateX(${180 + Math.random() * 720}deg) rotateY(${180 + Math.random() * 720}deg)} 100% {transform: rotateX(${180 + Math.random() * 720}deg) rotateY(${180 + Math.random() * 720}deg)} }`) style.insertRule(`@keyframes secondrotateS${i} { 0%,32%{ transform:scale(1);opacity:1; }70% {transform: translateZ(${300 + Math.random() * 1500}px) translate(${(0.5 - Math.random()) * 500}px,${ (0.5 - Math.random()) * 500 }px);opacity:0} 100% {transform: translateZ(${300 + Math.random() * 1500}px) translate(${(0.5 - Math.random()) * 500}px,${ (0.5 - Math.random()) * 500 }px);opacity:0} }`) div1.style.animation = `secondrotateS${i} 4.5s ease-out infinite` div.style.animation = `secondrotate${i} 4.5s ease-out infinite` div.style.transformOrigin = `center center` div.addEventListener('animationstart', () => { timer1.value = setTimeout(() => { changeImage(InBox) div.style.backgroundImage = imageArr[count] }, 4000) }) div.addEventListener('animationiteration', () => { timer2.value = setTimeout(() => { changeImage(InBox) div.style.backgroundImage = imageArr[count] }, 4000) }) div1.appendChild(div) dom.appendChild(div1) }div存在间隙的问题
在100个div展示之后会出现这样的线，在经过多次尝试之后，找到了方法，将div的高度变大，div1设置overflow:hidden; 线回消失
代码详情
<template> <div> <transition name="fadeIn"> <div id="animateBox" v-show="showImg"> <div id="break"></div> <div id="InBox"></div> </div> </transition> </div></template><script setup lang="ts">import bgImg5 from '../../assets/img/1/y1.png'import bgImg4 from '../../assets/img/1/y2.png'import bgImg3 from '../../assets/img/1/y3.png'import bgImg2 from '../../assets/img/1/y4.png'import bgImg6 from '../../assets/img/1/y5.png'import { ref, onMounted, onUnmounted } from 'vue'const timer1 = ref<number>()const timer2 = ref<number>()const showImg = ref<boolean>(false)onMounted(() => { let imageSrcArr = [bgImg2, bgImg3, bgImg4, bgImg5, bgImg6] let imgloadPromiseArr: Array<Promise<HTMLImageElement>> = [] let imageArr: Array<string> = [] for (let i = 0; i < imageSrcArr.length; i++) { imgloadPromiseArr[i] = new Promise((resolve, reject) => { let img = new Image() img.src = imageSrcArr[i] img.onload = () => { resolve(img) } }) } imgloadPromiseArr.forEach(item => { item.then(res => { imageArr.push(`url(${(<HTMLImageElement>res).currentSrc})`) index = imageArr.length }) }) showImg.value = true let repeat = true function changeImage(InBox: HTMLDivElement) { if (repeat) { breakBox.style.zIndex = '-10' count++ count = count === index ? 0 : count repeat = false setTimeout(() => { repeat = true breakBox.style.zIndex = '100' let currentImageLength = count === index - 1 ? 0 : count + 1 InBox.style.backgroundImage = imageArr[currentImageLength] }, 1000) } } let count = 0 let index = 0 let breakBox: HTMLDivElement = document.querySelector('#break')! let InBox: HTMLDivElement = document.querySelector('#InBox')! InBox.style.backgroundImage = imageArr[1] const appendDom = (dom: HTMLElement) => { for (let i = 0; i < 100; i++) { let div = document.createElement('div') let div1 = document.createElement('div') div.style.width = '76px' div.style.height = '41px' div1.style.width = '76px' div1.style.height = '40px' div1.style.overflow = 'hidden' div.style.boxSizing = 'border-box' div.style.backgroundImage = imageArr[0] let positionX = -(i % 10) * 76 + 'px' let positionY = -Math.floor(i / 10) * 40 + 'px' div.style.backgroundPosition = positionX + ' ' + positionY div.style.backgroundSize = '760px 400px' let style = document.styleSheets[0] style.insertRule(`@keyframes secondrotate${i} { 0%,30%{ transform:scale(1) } 70% {transform: rotateX(${180 + Math.random() * 720}deg) rotateY(${180 + Math.random() * 720}deg)} 100% {transform: rotateX(${180 + Math.random() * 720}deg) rotateY(${180 + Math.random() * 720}deg)} }`) style.insertRule(`@keyframes secondrotateS${i} { 0%,32%{ transform:scale(1);opacity:1; }70% {transform: translateZ(${300 + Math.random() * 1500}px) translate(${(0.5 - Math.random()) * 500}px,${ (0.5 - Math.random()) * 500 }px);opacity:0} 100% {transform: translateZ(${300 + Math.random() * 1500}px) translate(${(0.5 - Math.random()) * 500}px,${ (0.5 - Math.random()) * 500 }px);opacity:0} }`) div1.style.animation = `secondrotateS${i} 4.5s ease-out infinite` div.style.animation = `secondrotate${i} 4.5s ease-out infinite` div.style.transformOrigin = `center center` div.addEventListener('animationstart', () => { timer1.value = setTimeout(() => { changeImage(InBox) div.style.backgroundImage = imageArr[count] }, 4000) }) div.addEventListener('animationiteration', () => { timer2.value = setTimeout(() => { changeImage(InBox) div.style.backgroundImage = imageArr[count] }, 4000) }) div1.appendChild(div) dom.appendChild(div1) } } appendDom(breakBox)})onUnmounted(() => { typeof timer1 === 'number' && clearTimeout(timer1) typeof timer2 === 'number' && clearTimeout(timer2)})</script><style scoped lang="scss">@import url('../../css/comment/animate.css');#animateBox { width: 100vw; height: calc(100vh - 50px); // background-color: rgba(255, 255, 255, 0.6); #break { position: absolute; left: 0; top: 0; right: 0; bottom: 0; margin: auto; width: 760px; height: 400px; display: flex; perspective: 1000px; transform-style: preserve-3d; flex-wrap: wrap; z-index: 100; } #InBox { position: absolute; left: 0; top: 0; right: 0; bottom: 0; margin: auto; width: 760px; height: 400px; display: flex; perspective: 1000px; transform-style: preserve-3d; flex-wrap: wrap; z-index: 10; background-size: 760px 400px; }}</style>到此，关于“基于Vue3怎么实现图片散落效果”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注编程网网站，小编会继续努力为大家带来更多实用的文章！
