如何解决如何使用纯 Javascript 或纯 Javascript 库创建背景图片幻灯片
我想以一种可以在背景中滑动两张图片的方式来制作下面的内容,但是我一直在思考如何实现背景图片的幻灯片。请协助,任何帮助将不胜感激。
#header-image {
background-image: url('/images/photography1.jpg');
width: 100%;
border: none;
padding: 0;
margin: 0;
background-position: bottom center;
background-repeat: no-repeat;
background-size: cover;
height: 100vh;
position: relative;
}
<div id="header-image">
<div class="overlay" data-aos="fade-down-right">
<h1>Photography logo</h1>
</div>
</div>
解决方法
我使用javascript为您制作了一个示例,并修改了您的html和css。这样的结果有必要吗?如果您有任何问题,请告诉我。
let anime = document.querySelector('#header-image');
var step = 0;
function animate() {
if (step > -200) {
anime.style.transform = 'translateX('+ step +'vw)';
} else {
anime.style.transform = 'transformX(100vw)';
step = 100;
}
}
setInterval(function () {
step = step - 100;
animate();
},5000);
body {
padding: 0;
margin: 0;
}
#header {
overflow: hidden;
}
#header-image {
border: none;
width: 200vw;
height: 100vh;
transition: 1s;
display: flex;
}
#photo_section_one {
background-image: url('https://img.desktopwallpapers.ru/newyear/pics/wide/1920x1200/5f7ff83acdb7b743fb61468954e9c511.jpg');
width: 100vw;
background-position: bottom center;
background-repeat: no-repeat;
background-size: cover;
height: 100%;
}
#photo_section_two {
background-image: url('https://lh3.googleusercontent.com/proxy/N_97o7XR3tJd8Thp4vFQxXqqQVMSgBNhjGlvvHa9bDnpW-i4v6J9EElWWMSC8qumCbDAfvAjroBDWBu8F1HPl-hZX1BsYOk-wDNO26pT19W90o8n22aABvQ');
width: 100vw;
background-position: bottom center;
background-repeat: no-repeat;
background-size: cover;
height: 100%;
}
<div id="header">
<div id="header-image">
<div id="photo_section_one">
<div class="overlay" data-aos="fade-down-right">
<h1>Photography Logo</h1>
</div>
</div>
<div id="photo_section_two">
<div class="overlay" data-aos="fade-down-right">
<h1>Photography Logo</h1>
</div>
</div>
</div>
</div>
使用图像数组的第二个解决方案。图像在您显示的网站上发生了变化。
let anime = document.querySelector('#header-image');
let images = ['https://vjoy.cc/wp-content/uploads/2019/08/1-39.jpg','https://img.desktopwallpapers.ru/newyear/pics/wide/1920x1200/5f7ff83acdb7b743fb61468954e9c511.jpg'];
let index = 0;
setInterval(function(){
anime.style.backgroundImage = 'url(' + images[index] + ')';
index++;
if (index >= images.length) {
index = 0;
}
},5000);
* {
padding: 0;
margin: 0;
}
#header {
overflow: hidden;
}
#header-image {
border: none;
height: 100vh;
transition: 1s;
background-image: url('https://img.desktopwallpapers.ru/newyear/pics/wide/1920x1200/5f7ff83acdb7b743fb61468954e9c511.jpg');
width: 100%;
background-position: bottom center;
background-repeat: no-repeat;
background-size: cover;
}
<div id="header">
<div id="header-image">
<div id="photo_section_one">
<div class="overlay" data-aos="fade-down-right">
<h1>Photography Logo</h1>
</div>
</div>
</div>
</div>
据我所知,你不能完全按照你的要求去做。但是,您可以通过 z-index 和绝对定位、一些 css 和一些 js 创建类似的东西。您必须在文本后面创建一个 div 并使用 css 为其设置动画,同时使用一些 js 使其连续循环。
setInterval(function() {
if (document.getElementsByClassName("slide-pos-1")[0] != undefined) {
document.getElementsByClassName("background-slide")[0].classList.add("slide-pos-2")
setTimeout(function() {
document.getElementsByClassName("background-slide")[0].classList.remove("slide-pos-1")
document.getElementsByClassName("background-slide")[0].classList.remove("slide-pos-2")
},1500)
} else {
document.getElementsByClassName("background-slide")[0].classList.add("slide-pos-1")
}
},6000)
html,body {
margin: 0;
width: 100%;
height: 100%;
overflow: hidden;
}
.background-slide {
position: absolute;
top: 0;
left: 0;
width: 300%;
height: 100%;
display:flex;
transform:translate(0,0);
transition: transform 0s ease-out;
}
.slide-pos-1{
transform:translate(calc(-100% / 3),0);
transition: transform 1s ease-out;
}
.slide-pos-2{
transform:translate(calc(-200% / 3),0);
transition: transform 1s ease-out;
}
.header-image {
width: 100%;
height: 100%;
}
.overlay{
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
.image {
flex:1;
}
img {
object-fit: cover;
width:100%;
height:100%;
margin:0;
}
<div class="header-image">
<div class="background-slide slide-pos-1">
<div class="image"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Image_created_with_a_mobile_phone.png/1200px-Image_created_with_a_mobile_phone.png" /></div>
<div class="image"><img src="https://miro.medium.com/max/1200/1*mk1-6aYaf_Bes1E3Imhc0A.jpeg" /></div>
<div class="image"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Image_created_with_a_mobile_phone.png/1200px-Image_created_with_a_mobile_phone.png" /></div>
</div>
<div class="overlay">
<h1>Photography Logo</h1>
</div>
</div>
另外,这个不会随着图片一起滑动文字,滑动方向是一样的。感谢 s.kuznetsov 让我意识到这一点并修改了我的答案。
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