悬浮窗，点击收缩/展开

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悬浮窗，点击收缩/张开

效果图

这里写图片描述
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。

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