时间:2020-11-16 12:13:28 | 栏目:jquery | 点击:次
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" rel="external nofollow" > <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" rel="external nofollow" > --> <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> </div> </div> </li> <li id="draggable4" class="drag"> <div class="innerdiv"> <div class="innerdiv2"> <div class="move">放在这里</div> </div> </div> </li> <li id="draggable5" class="drag"> <div class="innerdiv"> <div class="innerdiv2"> <div class="move">放在这里</div> </div> </div> </li> <li id="draggable6" class="drag"> <div class="innerdiv"> <div class="innerdiv2"> <div class="move">放在这里</div> </div> </div> <li id="draggable1" class="drag"> <div class="innerdiv"> <div class="innerdiv2"> <div class="move">放在这里</div> </div> </div> </li> </li> </ul> </div> </body> </html>