On mobile, swipe and tap the arrow.
Click on the arrow on the PC side
<!DOCTYPE html>
<html lang="en">
<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">
<title>原生H5轮播图</title>
</head>
<style>
html,
body {
margin: 0;
padding: 0;
}
* {
margin: 0;
padding: 0;
}
.title_name {
background-color: #9eaceb;
font-size: 16px;
height: 30px;
color: #fff;
font-weight: bold;
line-height: 30px;
padding: 5px;
}
.top {
width: 100%;
overflow: hidden;
}
#box {
width: 100px;
height: 100px;
border: 1px solid black;
position: relative;
overflow: hidden;
}
#ul1 {
width: 64rem;
height: 7.5rem;
}
#ul1 li {
width: 16rem;
height: 7.5rem;
float: left;
font-size: 2rem;
color: #fff;
line-height: 7.5rem;
text-align: center;
list-style: none;
}
.s_left {
position: relative;
top: -4.7rem;
color: #fff;
left: 5px;
}
.s_right {
position: relative;
top: -4.7rem;
color: #fff;
left: 87%;
right: 0px;
}
</style>
<body>
<div id="code">
<div class="top">
<div class="title_name"> 轮播 Tips</div>
<ul id="ul1">
<li style="background: red">1</li>
<li style="background: yellow">2</li>
<li style="background: green">3</li>
<li style="background: blue">4</li>
</ul>
<span class="s_left" onclick="changeBanner(-1)">
< </span>
<span class="s_right" onclick="changeBanner(1)">
>
</span>
</div>
</div>
</body>
<script>
(function (win, doc) {
function change() {
doc.documentElement.style.fontSize = doc.documentElement.clientWidth * 20 / 320 + 'px';
}
change();
win.addEventListener('resize', change, false);
})(window, document);
var x = 0;
var iNow = 0;
var oUl = document.getElementById('ul1');
var aLi = oUl.getElementsByTagName('li');
function changeBanner(num) {
iNow += num;
if (iNow < 0) {
iNow = aLi.length - 1
}
if (iNow == aLi.length) {
iNow = 0
}
x = -iNow * aLi[0].offsetWidth;
oUl.style.transform = 'translateX(' + x + 'px)';
oUl.style.transition = '20ms all ease';
}
window.addEventListener('DOMContentLoaded', function () {
console.log(232323)
oUl.addEventListener('touchstart', function (ev) {
console.log(333333333333333333)
oUl.style.transition = 'none';
var disX = ev.targetTouches[0].pageX - x;
var downX = ev.targetTouches[0].pageX;
function fnMove(ev) {
x = ev.targetTouches[0].pageX - disX;
oUl.style.transform = 'translateX(' + x + 'px)';
}
function fnEnd(ev) {
var upX = ev.changedTouches[0].pageX;
if (Math.abs(upX - downX) > 50) {
if (upX - downX < 0) {
iNow++;
if (iNow == aLi.length) {
// iNow = aLi.length - 1
iNow = 0
}
} else {
iNow--;
if (iNow == -1) {
// iNow = 0;
iNow = aLi.length - 1
}
}
}
x = -iNow * aLi[0].offsetWidth;
oUl.style.transform = 'translateX(' + x + 'px)';
oUl.style.transition = '20ms all ease';
document.removeEventListener('touchmove', fnMove, false);
document.removeEventListener('touchend', fnEnd, false);
}
document.addEventListener('touchmove', fnMove, false);
document.addEventListener('touchend', fnEnd, false);
ev.preventDefault();
}, false);
}, false);
</script>
</html>