我有div
填充整个页面(投资组合样式)。 div
具有以下风格:
.image-head {
background: url('http://placehold.it/1920x1080') no-repeat top center fixed;
background-size: cover;
height: 100%;
width: 100%;
margin: 0;
padding: 0;
color: black;
text-align: center;
}
基本上,我想要做的是每隔X秒更改url
为其背景图像指向的div
,但我不确定如何执行此操作。< / p>
我的标记目前看起来像这样:
<div class="image-head">
<div class="centering-hack">
<h1>Something HTML</h1>
</div>
</div>
这里最简单/最好的解决方案是什么?
谢谢!
编辑:如果JS库更容易使用Bootstrap 3
答案 0 :(得分:8)
使用您要使用的图片制作数组:
var images = [
"https://www.royalcanin.com/~/media/Royal-Canin/Product-Categories/cat-adult-landing-hero.ashx",
"https://www.petfinder.com/wp-content/uploads/2013/09/cat-black-superstitious-fcs-cat-myths-162286659.jpg",
"https://upload.wikimedia.org/wikipedia/commons/4/4d/Cat_March_2010-1.jpg"
]
我们检索您要更改其背景的div
:
var imageHead = document.getElementById("image-head");
您现在可以使用setInterval
每秒更改背景图片网址(或您想要的任何时间间隔):
var i = 0;
setInterval(function() {
imageHead.style.backgroundImage = "url(" + images[i] + ")";
i = i + 1;
if (i == images.length) {
i = 0;
}
}, 1000);
以下是一个实例:https://jsfiddle.net/vvwcfkfr/1/
const cats = [
"https://www.royalcanin.com/~/media/Royal-Canin/Product-Categories/cat-adult-landing-hero.ashx",
"https://www.petfinder.com/wp-content/uploads/2013/09/cat-black-superstitious-fcs-cat-myths-162286659.jpg",
"https://upload.wikimedia.org/wikipedia/commons/4/4d/Cat_March_2010-1.jpg"
]
const node = document.getElementById("image-head");
const cycleImages = (images, container, step) => {
images.forEach((image, index) => (
setTimeout(() => {
container.style.backgroundImage = `url(${image})`
}, step * (index + 1))
))
setTimeout(() => cycleImages(images, container, step), step * images.length)
}
cycleImages(cats, node, 1000)
答案 1 :(得分:1)
如果我对你的问题感到不满,那你就想要捣蛋 http://codepen.io/dodekx/pen/BKEbPK?editors=1111
var url = ['http://lorempixel.com/400/200/sports/' ,
'http://lorempixel.com/400/200/city/'];
curentImageIndex = 0;
setInterval(function(){
console.log(url[curentImageIndex])
var p = $('.image-head');
p.css("background","url("+url[curentImageIndex++] + ")");
if(curentImageIndex>= url.length){curentImageIndex = 0}
}, 1000);
当然最好的解决方案是来自jquery插件或boostrap
的一些jumbutron