JS+HTML+CSS实现轮播效果
程序员文章站
2024-01-02 19:23:10
本文实例为大家分享了android九宫格图片展示的具体代码，供大家参考，具体内容如下
1.lunbo.html代码：
本文实例为大家分享了android九宫格图片展示的具体代码，供大家参考，具体内容如下
1.lunbo.html代码：
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>大轮播</title>
<link rel="stylesheet" type="text/css" href="css/lunbo.css"/>
<script src="js/lunbo.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="list" style="left: -1350px;">
<img src="image/banner_3.jpg"/>
<img src="image/banner_1.jpg"/>
<img src="image/banner_2.jpg"/>
<img src="image/banner_3.jpg">
<img src="image/banner_1.jpg"/></div>
<div id="buttons">
<span index="1"></span>
<span index="2"></span>
<span index="3"></span>
</div>
<a href="javascript:;" id="prev" class="arrow" style="font-size:100px; text-align:center;"><</a>
<a href="javascript:;" id="next" class="arrow" style="font-size:100px; text-align:center;">></a></div>
</body>
</html>
2.css/lunbo.css代码：
body {
margin: 0px;
padding: 0px;
width: 1350px;
height: 618px;
}
a {
text-decoration: none;
}
#container {
width: 1350px;
height: 618px;
overflow: hidden;
position: relative;
border-top: 1px solid #ac6a0a;
}
#list {
width: 6750px;
height: 618px;
position: absolute;
z-index: 1;
}
#list img {
float: left;
width: 1350px;
height: 618px;
}
#buttons {
position: absolute;
height: 20px;
width: 60px;
z-index: 2;
bottom: 20px;
left: 50%;
}
#buttons span {
cursor: pointer;
float: left;
border: 1px solid #ad6a0a;
width: 10px;
height: 10px;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
margin-right: 5px;
}
#buttons .on {
background: orangered;
}
.arrow {
cursor: pointer;
display: none;
line-height: 100px;
text-align: center;
width: 40px;
height: 40px;
position: absolute;
z-index: 2;
top: 180px;
background-color: rgba(0, 0, 0, 0);
color: #fff;
}
.arrow:hover {
background-color: rgba(0, 0, 0, 0);
}
#container:hover .arrow {
display: block;
}
#prev {
left: 10px;
color: #ffffff;
}
#next {
right: 10px;
color: #ffffff;
}
3.js/lunbo.js代码：
window.onload = function () {
var container = document.getelementbyid('container');
var list = document.getelementbyid('list');
var buttons = document.getelementbyid('buttons').getelementsbytagname('span');
var prev = document.getelementbyid('prev');
var next = document.getelementbyid('next');
var index = 1;
var len = 3;
var animated = false;
var interval = 3000;
var timer;
var size = 1350;
function animate(offset) {
if (offset == 0) {
return;
}
animated = true;
var time = 300;
var inteval = 10;
var speed = offset / (time / inteval);
console.log("speed:" + speed);
var left = parseint(list.style.left) + offset;
var go = function () {
if ((speed > 0 && parseint(list.style.left) < left) || (speed < 0 && parseint(list.style.left) > left)) {
list.style.left = parseint(list.style.left) + speed + 'px';
console.log(list.style.left);
settimeout(go, inteval);
} else {
list.style.left = left + 'px';
if (left > -200) {
list.style.left = -size * len + 'px';
}
if (left < ( -size * len)) {
list.style.left = '-' + size + 'px';
}
animated = false;
console.log("left:" + list.style.left);
}
}
go();
}
function showbutton() {
for (var i = 0; i < buttons.length; i++) {
if (buttons[i].classname == 'on') {
buttons[i].classname = '';
break;
}
}
buttons[index - 1].classname = 'on';
}
function play() {
timer = settimeout(function () {
next.onclick();
play();
},
interval);
}
function stop() {
cleartimeout(timer);
}
next.onclick = function () {
if (animated) {
return;
}
if (index == len) {
index = 1;
} else {
index += 1;
}
animate(-size);
showbutton();
}
prev.onclick = function () {
if (animated) {
return;
}
if (index == 1) {
index = len;
} else {
index -= 1;
}
animate(size);
showbutton();
}
for (var i = 0; i < buttons.length; i++) {
buttons[i].onclick = function () {
if (animated) {
return;
}
if (this.classname == 'on') {
return;
}
var myindex = parseint(this.getattribute('index'));
var offset = -size * (myindex - index);
animate(offset);
index = myindex;
showbutton();
}
}
container.onmouseover = stop;
container.onmouseout = play;
play();
};
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。