js实现可以点击收缩或张开的悬浮窗
时间：2020-10-20 15:18:45 | 栏目：JavaScript代码 | 点击：次
本文实例为大家分享了js实现悬浮窗的具体代码，供大家参考，具体内容如下
说明：点击”+“按钮，悬浮窗收缩/展开
思路
1、在html中定义一个div块，定一个id；一个按钮，点击时用。
2、写一个js,包含收缩以及展开的函数；为按钮添加点击事件。
3、想要让悬浮窗好看点，可设置对应的参数。
步骤
html
<div id="area">
<div id="small_menu">
<ul>
<li><a href="#">item one</a></li>
<li><a href="#">item two</a></li>
<li><a href="#">item three</a></li>
<li><a href="#">item four</a></li>
<li><a href="#">item five</a></li>
</ul>
</div>
<div id="on" onclick="xuanfu();"><p>+</p></div>
</div>
js
var menubox = document.getElementById("area"); //area为菜单栏的id
var cli_on = document.getElementById("on"); //on为按钮
var flag = false, timer = null, initime = null, r_len = 0;
if(menubox.style.right=== 0){
flag = true;
}
else{
flag = false;
}
cli_on.onclick = function () {
//为on按钮绑定click事件
clearTimeout(initime);
//根据状态flag执开展开收缩
if (flag) {
r_len = 0;
timer = setInterval(slideright, 10);
} else {
r_len = -160;
timer = setInterval(slideleft, 10);
}
}
//展开
function slideright() {
if (r_len <= -160) {
clearInterval(timer);
flag = !flag;
return false;
}else{
r_len -= 5;
menubox.style.right = r_len + 'px';
}
}
//收缩
function slideleft() {
if (r_len >= 0) {
clearInterval(timer);
flag = !flag;
return false;
} else {
r_len += 5;
menubox.style.right = r_len + 'px';
}
}
完整代码
含css,可直接用
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>悬浮窗</title>
</head>
<style type="text/css">
#area{
position:fixed;
width:160px;
right:-160px;
top:27%;}
#small_menu ul {
list-style: none;
}
#area #on{
position: absolute;
top: 40%;
right: 100%;
width: 30px;
height: 30px;
cursor: pointer;
border-radius: 15px;
background-color: rgba(13, 143, 143, 0.2);
}
#area #on p{
font-size:30px;
text-align:center;
margin-top:-6px;
color:#01E290;
}
#area #small_menu {
width:100%;
}
#area #small_menu ul li {
width:100%;
height: 44px;
text-align:left;
background-color: rgba(2, 27, 38, 0.62);
border-top: 1px solid #043B46;
line-height: 44px;
}
#area #small_menu ul li a{
text-decoration: none;
margin-left:30px;
color: #bfbfbf;
font-size:16px;
font-family: 'Microsoft Yahei';
}
#area #small_menu li.active {
width: 156px;
background-color: rgba(2, 27, 38, 0.87);
border-left: 4px solid #00ffff;
border-top: 0px;
}
#area #small_menu li.active a{
color: #00ffff;
}
#area #small_menu ul li:hover {
width: 156px;
background-color: rgba(2, 27, 38, 0.87);
border-left: 4px solid #00ffff;
}
#area #small_menu ul li:hover a{
color: #00ffff;
}
</style>
<body>
<div id="area">
<div id="small_menu">
<ul>
<li><a href="#">item one</a></li>
<li><a href="#">item two</a></li>
<li><a href="#">item three</a></li>
<li><a href="#">item four</a></li>
<li><a href="#">item five</a></li>
</ul>
</div>
<div id="on" onclick="xuanfu();"><p>+</p></div>
</div>
<script>
//嵌套在页面中，文档初始化时加载。
var menubox = document.getElementById("area"); //area为菜单栏的id
var cli_on = document.getElementById("on"); //on为按钮
var flag = false, timer = null, initime = null, r_len = 0;
if(menubox.style.right=== 0){
flag = true;
}
else{
flag = false;
}
cli_on.onclick = function () {
//为on按钮绑定click事件
clearTimeout(initime);
//根据状态flag执开展开收缩
if (flag) {
r_len = 0;
timer = setInterval(slideright, 10);
} else {
r_len = -160;
timer = setInterval(slideleft, 10);
}
}
//展开
function slideright() {
if (r_len <= -160) {
clearInterval(timer);
flag = !flag;
return false;
}else{
r_len -= 5;
menubox.style.right = r_len + 'px';
}
}
//收缩
function slideleft() {
if (r_len >= 0) {
clearInterval(timer);
flag = !flag;
return false;
} else {
r_len += 5;
menubox.style.right = r_len + 'px';
}
}
</script>
</body>
</html>
小结到此。