香草javascript&CSS图像滑块无法正常工作

注意:滑块可见部分的大小不取决于第一张图像的大小 imgs已替换为divs +背景图片，以便无需使用javascript即可容纳不同的尺寸/纵横比-这将自动提高响应速度这些div的尺寸都相同，因此滑块需要移动的量不取决于图像的大小未填满整个宽度(因为它们相对太高)的图像将居中图像也垂直居中.如果需要(例如，与滑块顶部对齐)，可以通过更改.slider div 中的背景位置来更改此设置使用transform:translateX可以，但是需要Javascript中的计算.我们可以改用CSS动画，只需要移动当前可见的幻灯片和接下来要显示的幻灯片即可.图片服务有时不提供图片，因此我使用了自己的图片-故意设置了不同的大小和宽高比(包括人像)使用此方法，可以有一个连续的滑块-如果用户单击的最后一个幻灯片，则显示第一个幻灯片.这是代码: <！DOCTYPE html>< html>< head>< title> Slider</title><元字符集="utf-8">< style>#看看书 {宽度:100vw;高度:100vh；保证金:0;填充:0;溢出:隐藏}.lookbook-nav {宽度:70vw;高度:10vh；左边距:15vw;边距最高:45vh;位置:绝对；显示:flex;证明内容:间隔；align-items:居中;}按钮 {边界:无；大纲:无；背景:透明；字体大小:2rem；/* font-weight:粗体;*/光标:指针；}.lookbook-nav按钮{边界:无；大纲:无；背景:透明；字体大小:2rem；/* font-weight:粗体;*/光标:指针；}按钮:悬停{不透明度:0.4;}div .lookbook {宽度:56vw;}.看看书 {高度:91vh；保证金:自动；溢出:隐藏；}div.slider {保证金:0;保证金最高:10vh;height:81vh;/*这是(lookbook-margin-top)的高度-最好通过flex */位置:相对；顶:0;填充:0;宽度:100％;}@keyframes slideouttoleft {从 {左:0；能见度:可见；}至 {左:-100％;可见性:隐藏；}}@keyframes slideinfromright {从 {左:100％;能见度:可见；}至 {左:0；能见度:可见；}}@keyframes slideouttoright {从 {左:0；能见度:可见；}至 {左:100％;可见性:隐藏；}}@keyframes slideinfromleft {从 {左:-100％;能见度:可见；}至 {左:0；能见度:可见；}}.slider div {位置:绝对；顶:0;左:0;溢出:隐藏可见性:隐藏；边距:0;填充:0;宽度:100％;高度:100％;背景大小:包含；背景位置:中心中心；背景重复:不重复不重复；动画时间:0.4秒；动画延迟:0秒；animation-iteration-count:1；动画方向:正常；动画定时功能:缓入；animation-fill-mode:前进；}</style></head><身体>< div id =" lookbook"data-tab-content class ＝黑文本".< div class ="lookbook-nav">< button id ="left">←</button>< button id ="right">→</button></div>< div class ="lookbook">< div class =滑块"><！-从雷丁(英国)博物馆的贝叶挂毯的维多利亚时代复制品中拍摄的图像->< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/boat-andhorses-768x546.png);<</div>;< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/two-horses-300x212.png);</div< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/woman-and-child-1200x901.png);></div>;< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/archer-2-768x1100.png);</div< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/boat-builder-2-878x1024.png);<</div>;< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/group-1-768x603.png);</div< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/pointing-horseman-768x853.png);</div< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/group-2-768x619.png);</div< div样式=" background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/carrying-casket-768x556.png);</div</div></div></div>< script>const slide = document.querySelector('.slider');const slidesImages = document.querySelectorAll('.slider div');const leftbtn = document.querySelector('#left');const rightbtn = document.querySelector('#right');const numImgs = sliderImages.length;让curImg = 0;rightbtn.addEventListener('click'，()=> {SliderImages [curImg] .style.animationName ='slideouttoleft';curImg =(curImg + 1)％数量;SliderImages [curImg] .style.animationName ='slideinfromright';})leftbtn.addEventListener('click'，()=> {SliderImages [curImg] .style.animationName ='slideouttoright';curImg = curImg == 0?numImgs-1:Math.abs((curImg-1)％numImgs);slideleImages [curImg] .style.animationName ='slideinfromleft';})函数initialize(){slideleImages [0] .style.animationName ='slideinfromright';}window.onload =初始化</script></body></html> I have created an image slider with many images using some javascript and css. I just used client width to get the size of the image (which vary slightly) and calculated the translateX distance with a counter variable. Added a css transition in the end. However I can't seem to get the slider to translate the whole image correctly. I don't know why it's going wrong. I have used 'vw' in the calculations for responsiveness. I am new to javascript and would love any tips for other parts for other parts of code as well.here is the JS fiddle link- https://jsfiddle.net/n6smpv2j/15/HTML<div id="lookbook" data-tab-content class="black-text"> <div class="lookbook-nav"> <button id="left">←</button> <button id="right">→</button> </div> <div class="lookbook"> <div class="slider"> <img src="https://loremflickr.com/640/360" id="lastClone" alt=""> <img src="https://picsum.photos/640/400"> <img src="https://loremflickr.com/640/360"> <img src="https://picsum.photos/640/400"> <img src="https://loremflickr.com/640/360"> <img src="https://picsum.photos/640/400"> <img src="https://loremflickr.com/640/360"> <img src="https://picsum.photos/600/400"> <img src="https://fillmurray.com/600/330"> <img src="https://picsum.photos/600/400"> <img src="https://fillmurray.com/600/330"> <img src="https://picsum.photos/600/400"> <img src="https://loremflickr.com/640/360"> <img src="https://picsum.photos/600/400"> <img src="https://loremflickr.com/640/360"> <img src="https://picsum.photos/600/400" id="firstClone" alt=""> </div> </div> </div>JSconst slider = document.querySelector('.slider');const sliderImages = document.querySelectorAll('.slider img');const leftbtn = document.querySelector('#left');const rightbtn = document.querySelector('#right');let counter = 1;const size = sliderImages[0].clientWidth;slider.style.transform = 'translateX(' + (-size * counter) + 'vw)';rightbtn.addEventListener('click', () => { if (counter >= sliderImages.length - 1) return; slider.style.transition = "transform 0.4s ease-in"; counter++; slider.style.transform = 'translateX(' + (-size * counter) + 'vw)'})leftbtn.addEventListener('click', () => { if (counter <= 0) return; slider.style.transition = "transform 0.4s ease-in"; counter--; slider.style.transform = 'translateX(' + (-size * counter) + 'vw)'})slider.addEventListener('transitionend', () => { if (sliderImages[counter].id === "lastClone") { slider.style.transition = "none"; counter = sliderImages.length - 2; slider.style.transform = 'translateX(' + (-size * counter) + 'vw)' } if (sliderImages[counter].id === "firstClone") { slider.style.transition = "none"; counter = sliderImages.length - counter; slider.style.transform = 'translateX(' + (-size * counter) + 'vw)' }})CSS#lookbook { width: 100vw; height: 100vh;}.lookbook-nav { width: 70vw; height: 10vh; margin-left: 15vw; margin-top: 45vh; position: absolute; display: flex; justify-content: space-between; align-items: center;}button { border: none; outline: none; background: transparent; font-size: 2rem; /* font-weight: bold; */ cursor: pointer;}.lookbook-nav button { border: none; outline: none; background: transparent; font-size: 2rem; /* font-weight: bold; */ cursor: pointer;}button:hover { opacity: 0.4;}.lookbook { width: 56vw; height: 91vh; margin: auto; overflow: hidden;}.lookbook img { width: 100%; height: auto !important;}.slider { margin-top: 10vh; display: flex; width: auto;} 解决方案 The answer from @DecjazMach solves the most important problem but doesn't cover everything. For example, the solution also still uses the width of the first image to set the width of the visible slider. This will be fine in many cases, but what if the first image is a skinny tall portrait and the rest landscape or vice versa?@Laiqa Mohid also welcomed any other suggestions so here are some which come out of trying to simplify things, for example minimising the calculation needed in the JS and the 'work' the system has to do on a click.You can try it here http://bayeuxtapestry.rgspaces.org.uk/sliderNotes:The size of the visible portion of the slider is not dependent on the dimensions of the first imageimgs have been replaced with divs + background-image so that different sizes/aspect ratios can be accommodated without any need for javascript calculation - this automatically helps responsivenessthese divs are all of the same dimensions so the amount the slider needs to move does not depend on the size of the imageimages that do not fill the whole width (because they are too tall relatively) will be centredimages are also centred vertically. This can be changed if required (e.g. to align to the top of the slider) by changing the background-position in .slider divUsing a transform:translateX works but requires a calculation in the Javascript. We can use CSS animation instead and need only move the currently visible slide and the one that is to be shown next.The image serving services sometimes did not serve an image so I have used my own - deliberately of different sizes and aspect ratios (including portrait)Using this method it is possible to have a continuous slider - showing the first slide if the user clicks past the last one.Here is the code:<!DOCTYPE html><html><head><title>Slider</title><meta charset="utf-8"><style>#lookbook { width: 100vw; height: 100vh; margin:0; padding:0; overflow:hidden;}.lookbook-nav { width: 70vw; height: 10vh; margin-left: 15vw; margin-top: 45vh; position: absolute; display: flex; justify-content: space-between; align-items: center;}button { border: none; outline: none; background: transparent; font-size: 2rem; /* font-weight: bold; */ cursor: pointer;}.lookbook-nav button { border: none; outline: none; background: transparent; font-size: 2rem; /* font-weight: bold; */ cursor: pointer;}button:hover { opacity: 0.4;}div .lookbook { width: 56vw;}.lookbook { height: 91vh; margin: auto; overflow: hidden;}div.slider{ margin:0; margin-top: 10vh; height:81vh;/* this is height of (lookbook - margin-top) - probably better done through flex */ position:relative; top:0; padding:0; width:100%;}@keyframes slideouttoleft { from { left: 0; visibility:visible; } to { left: -100%; visibility:hidden; }}@keyframes slideinfromright { from { left: 100%; visibility:visible; } to { left: 0; visibility:visible; }}@keyframes slideouttoright { from { left: 0; visibility:visible; } to { left: 100%; visibility:hidden; }}@keyframes slideinfromleft { from { left: -100%; visibility:visible; } to { left: 0; visibility:visible; }}.slider div { position:absolute; top:0; left:0; overflow:hidden; visibility:hidden; margin: 0; padding: 0; width:100%; height:100%; background-size: contain; background-position: center center; background-repeat: no-repeat no-repeat; animation-duration: 0.4s; animation-delay: 0s; animation-iteration-count: 1; animation-direction: normal; animation-timing-function: ease-in; animation-fill-mode: forwards;}</style></head><body><div id="lookbook" data-tab-content class="black-text"> <div class="lookbook-nav"> <button id="left">←</button> <button id="right">→</button> </div> <div class="lookbook"> <div class="slider"> <!-- images taken from Reading (UK) Museum's Victorian copy of the Bayeux Tapestry --> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/boat-and-horses-768x546.png);"></div> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/two-horses-300x212.png);"></div> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/woman-and-child-1200x901.png);"></div> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/archer-2-768x1100.png);"></div> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/boat-builder-2-878x1024.png);"></div> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/group-1-768x603.png);"></div> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/pointing-horseman-768x853.png);"></div> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/group-2-768x619.png);"></div> <div style="background-image:url(https://rgspaces.org.uk/bayeuxtapestry/wp-content/uploads/carrying-casket-768x556.png);"></div> </div> </div></div><script>const slider = document.querySelector('.slider');const sliderImages = document.querySelectorAll('.slider div');const leftbtn = document.querySelector('#left');const rightbtn = document.querySelector('#right');const numImgs=sliderImages.length;let curImg = 0;rightbtn.addEventListener('click', () => { sliderImages[curImg].style.animationName='slideouttoleft'; curImg=(curImg+1)%numImgs; sliderImages[curImg].style.animationName='slideinfromright';})leftbtn.addEventListener('click', () => { sliderImages[curImg].style.animationName='slideouttoright'; curImg=curImg==0? numImgs-1 : Math.abs((curImg-1)%numImgs); sliderImages[curImg].style.animationName='slideinfromleft';})function initialize() { sliderImages[0].style.animationName='slideinfromright';}window.onload=initialize;</script></body></html> 这篇关于香草javascript&amp;CSS图像滑块无法正常工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！