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javascript仿qq界面的折叠菜单实现代码

时间：2021-07-01 10:21:17 帮助过：5人阅读

最近一直在研究网页特效,看到qq界面的折叠菜单,于是冒出个想法,自己写一个类似的,上网查了一下,发现已经有不少类似的菜单效果,不管那么多,先写着再说吧.

以下是html结构:
<div id="a"><div id="h1">sdfds</div><div id="b1">dsfdsfsdfsd</div><div id="h2">dsf</div><div id="b2">dsfdsfsdf</div>.......................</div>
id为a里的便是你要添加的菜单的标题和内容.

下面是javascript代码:
代码如下:


sx.activex.packmenu={ 
create:function(t){ 
var a=document.createElement("div"); 
var _t=t; 
a.style.height="300px"; 
a.style.width="150px"; 
a.style.border="1px red solid"; 
a.style.overflow="hidden"; 
for(var i=0;i<t.length;i++){ 
var h=document.createElement("div"); 
var b=document.createElement("div");; 
h.style.backgroundColor="blue"; 
h.style.height="10%"; 
b.style.padding="5px"; 
b.style.textAlign="center"; 
b.style.border="1px green solid"; 
h.innerHTML=t[i][0]; 
b.innerHTML=t[i][1]; 
b.style.overflow="hidden"; 
b.style.height="0px"; 
b.style.display="none"; 
h.onclick=function(){ 
if(this.nextSibling.style.display=="none"){ 
this.nextSibling.style.height="1px"; 
this.nextSibling.style.display="block"; 
this.h=window.setInterval(function(t,t1){ 
return function(){ 
if(!t1) return; 
//alert(t.nextSibling.offsetHeight); 
if(parseInt(t.nextSibling.style.height)<100-_t.length*parseInt(a.all[0].style.height)-3){ 
t.nextSibling.style.height=parseInt(t.nextSibling.style.height)+3+"%"; 
t1.style.height=parseInt(t1.style.height)-3+"%"; 
} 
else{ 
t.nextSibling.style.height=100-_t.length*parseInt(a.all[0].style.height)+"%";; 
t1.style.display="none"; 
t1.style.height="0px"; 
window.clearInterval(t.h); 
} 
} 
}(this,(function(){ 
for(var ii=0;ii<a.all.length;ii++){ 
if(parseInt(a.all[ii].style.height)>10) 
return a.all[ii]; 
} 
})()),10); 
} 
else{ 
if(this!=this.parentNode.firstChild){ 
this.previousSibling.style.height="1px"; 
this.previousSibling.style.display="block"; 
} 
else{ 
this.parentNode.lastChild.style.display="block"; 
this.parentNode.lastChild.style.height="1px"; 
} 
this.h=window.setInterval(function(t,t1){ 
return function(){ 
if(!t1) return; 
if(parseInt(t.nextSibling.style.height)>3){ 
if(t!=t.parentNode.firstChild) 
t.previousSibling.style.height=parseInt(t.previousSibling.style.height)+3+"%"; 
else 
t.parentNode.lastChild.style.height=parseInt(t.parentNode.lastChild.style.height)+3+"%"; 
t1.style.height=parseInt(t1.style.height)-3+"%"; 


} 
else{ 
if(t!=t.parentNode.firstChild) 
t.previousSibling.style.height=100-_t.length*parseInt(a.all[0].style.height)+"%"; 
else 
t.parentNode.lastChild.style.height=100-_t.length*parseInt(a.all[0].style.height)+"%"; 
t.nextSibling.style.display="none"; 
t.nextSibling.style.height="0px"; 
window.clearInterval(t.h); 
} 
} 
}(this,(function(){ 
for(var ii=0;ii<a.all.length;ii++){ 
if(parseInt(a.all[ii].style.height)>10) 
return a.all[ii]; 
} 
})()),1); 
} 
} 
a.appendChild(h); 
a.appendChild(b); 
a.all[1].style.display="block"; 
a.all[1].style.height=100-t.length*parseInt(a.all[0].style.height)+"%"; 
} 
return a; 
} 
} 
 
入口参数t是你要传递的二维数组,以一个标题加内容为一个数组项的形式: 
下面是调用代码: 
<html> 
<head> 
<title>Untitled Document</title> 
</head> 
<body> 
<script src="kongjian.js" ></script> 
<script> 
var a=sx.activex.packmenu.create([["asd","sadsadas"],["sd","sadsaas"],["w","waedqwdq"],["e","efwefw"]]); 
//a.contentEditable=true; 
document.body.appendChild(a); 
</script> 
</body> 
</html> 
搞定,有兴趣的朋友可以看下效果.

javascript仿qq界面的折叠菜单实现代码

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