jqueryUI sortable 可以用来进行页面拖拽布局,然而有一个小问题就是拖拽后如何保存状态。
工作中遇到了这个情况,遍把这个问题记了下来,具体思路是:
利用拖拽stop后利用
var arr = $( ".sortable" ).sortable('toArray');
记录拖拽后的id数组顺序,然后把这个数组存起来,可以存cookie,数据库,localstorage等,刷新页面后读取这个数组,然后进行重新排序。
具体的代码如下可直接复制运行。本文将数组保存在localstorage里面。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 拖动(Draggable) - 约束运动</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="http://cdn.bootcss.com/jquery/3.1.0/jquery.min.js"></script>
<script src="http://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<!-- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css"> -->
<style>
*{
margin:0;
padding: 0;
box-sizing: border-box;
}
.container{
border: 1px solid black;
margin-bottom: 10px;
margin-top: 10px;
}
.container:after{
content: "";
display: block;
clear: both;
}
.drag{
width: 200px;
height: 200px;
float: left;
}
ul li {
list-style: none;
}
.innerdiv{
padding: 10px;
height: 100%;
}
.innerdiv2{
background: grey;
height: 100%;
}
#draggable1{
width: 400px;
height: 400px;
}
.move{
width: 80px;
height: 40px;
background: blanchedalmond;
}
</style>
<script>
$(function() {
var arr = '';
var sort = $( ".sortable" ).sortable({
handle: ".move",
opacity: 0.7,
delay: 150,
cursor:'move',
revert: true,
stop:function(){
//记录sort后的id顺序数组
var arr = $( ".sortable" ).sortable('toArray');
console.log(arr);
//拖拽后利用localStorage记录顺序
localStorage.arr = arr;
}
});
var localSt = localStorage.arr;
//如果有localst记录则,按照这个进行排序元素
if(localSt){
var resArr = localSt.split(',');
var resUl = $('ul');
//li 数组
for(var i = 0;i < resArr.length;i++){
resUl.append($("#" + resArr[i]));
}
}
});
</script>
</head>
<body>
<div class="container">
<ul class="sortable">
<li id="draggable2" class="drag">
<div class="innerdiv">
<div class="innerdiv2">
<div class="move">放在这里</div>
只有鼠标放在小长方形里才能移动
</div>
</div>
</li>
<li id="draggable3" class="drag">
<div class="innerdiv">
<div class="innerdiv2">
<div class="move">放在这里</div>
5
</div>
</div>
</li>
<li id="draggable4" class="drag">
<div class="innerdiv">
<div class="innerdiv2">
<div class="move">放在这里</div>
4
</div>
</div>
</li>
<li id="draggable5" class="drag">
<div class="innerdiv">
<div class="innerdiv2">
<div class="move">放在这里</div>
3
</div>
</div>
</li>
<li id="draggable6" class="drag">
<div class="innerdiv">
<div class="innerdiv2">
<div class="move">放在这里</div>
2
</div>
</div>
<li id="draggable1" class="drag">
<div class="innerdiv">
<div class="innerdiv2">
<div class="move">放在这里</div>
1
</div>
</div>
</li>
</li>
</ul>
</div>
</body>
</html>