网站开发常用jQuery插件总结(三）拖拽插件gridster

1.gridster插件功能

实现类似于win8 磁贴拖拽的功能

2.gridster官方地址

http://gridster.net/

在官方的网站上也有插件的帮助和实例，但是按照官方的说明，我在本地测试总是出现这样那样的问题，一是无法移动，二是在磁铁的附近有一个黑点，可能是定位使用的。但是如果在网站中正常使用，应该不会出现这样的黑点。gridster插件的属性和方法在官网上有详细说明。

经过测试了一下，最后终于解决了问题。效果显示如下：

3.gridster使用方法

1.首先引用js文件

<script type="text/javascript" src=" jquery-1.7.2.min.js"></script>
<script type="text/javascript" src=" jquery.gridster.js"></script>
<link rel="stylesheet" type="text/css" href=" style.css" />

2.用到的css

<style type="text/css">
.handle {
    border-bottom: 1px solid black;
}
.small img{
    height:83px;
    width:97px;
}
.gridster {
    position:relative;
    background-color:#CCC;
} 

li {
    background-color: white;
    width: 150px;
    height: 300px;
    border: solid 2px black;
}

.gridster > * {
    margin: 0 auto;
    -webkit-transition: height .4s;
    -moz-transition: height .4s;
    -o-transition: height .4s;
    -ms-transition: height .4s;
    transition: height .4s;
}

.gridster .gs_w{
    z-index: 2;
    position: absolute;
}

.ready .gs_w:not(.preview-holder) {
    -webkit-transition: opacity .3s, left .3s, top .3s;
    -moz-transition: opacity .3s, left .3s, top .3s;
    -o-transition: opacity .3s, left .3s, top .3s;
    transition: opacity .3s, left .3s, top .3s;
}

.ready .gs_w:not(.preview-holder) {
    -webkit-transition: opacity .3s, left .3s, top .3s, width .3s, height .3s;
    -moz-transition: opacity .3s, left .3s, top .3s, width .3s, height .3s;
    -o-transition: opacity .3s, left .3s, top .3s, width .3s, height .3s;
    transition: opacity .3s, left .3s, top .3s, width .3s, height .3s;
}

.gridster .preview-holder {
    z-index: 1;
    position: absolute;
    background-color: #fff;
    border-color: #fff;
    opacity: 0.3;
}

.gridster .player-revert {
    z-index: 10!important;
    -webkit-transition: left .3s, top .3s!important;
    -moz-transition: left .3s, top .3s!important;
    -o-transition: left .3s, top .3s!important;
    transition:  left .3s, top .3s!important;
}

.gridster .dragging {
    z-index: 10!important;
    -webkit-transition: all 0s !important;
    -moz-transition: all 0s !important;
    -o-transition: all 0s !important;
    transition: all 0s !important;
}
p{
    margin:10px;
}

3.使用的js代码

$(function(){

    $(".gridster ul").gridster({
        widget_margins: [5, 5],
        widget_base_dimensions: [100, 100],
        draggable: {
            handle: '.handle'
        }
    });
    var gridster = $(".gridster ul").gridster().data('gridster');
});

4.使用的html

<div class="gridster">
    <ul id="reszable">
        <li data-row="1" data-col="1" data-sizex="1" data-sizey="1"><div class="handle">1</div><div class="small"><img src="test.jpg" /></div></li>
        <li data-row="2" data-col="1" data-sizex="1" data-sizey="1"><div class="handle">2</div></li>
        <li data-row="3" data-col="1" data-sizex="1" data-sizey="1"><div class="handle">3</div></li>
        <li data-row="1" data-col="2" data-sizex="2" data-sizey="1"><div class="handle">4</div></li>
        <li data-row="2" data-col="2" data-sizex="2" data-sizey="2"><div class="handle">5</div><p>
        Like no other javascript library, Parsley has a full support for #UX concerns and detailed options. Override almost every Parsley default behaviors to fit your exact needs.</p></li>
        <li data-row="1" data-col="4" data-sizex="1" data-sizey="1"><div class="handle">6</div></li>
        <li data-row="2" data-col="4" data-sizex="2" data-sizey="1"><div class="handle">7</div></li>
        <li data-row="3" data-col="4" data-sizex="1" data-sizey="1"><div class="handle">8</div></li>
        <li data-row="1" data-col="5" data-sizex="1" data-sizey="1"><div class="handle">9</div></li>
        <li data-row="3" data-col="5" data-sizex="1" data-sizey="1"><div class="handle">10</div></li>
        <li data-row="1" data-col="6" data-sizex="1" data-sizey="1"><div class="handle">11</div></li>
        <li data-row="2" data-col="6" data-sizex="1" data-sizey="2"><div class="handle">12</div></li>
        <li data-row="1" data-col="7" data-sizex="1" data-sizey="1"><div class="handle">13</div></li>
        <li data-row="2" data-col="7" data-sizex="1" data-sizey="1"><div class="handle">14</div></li>
        <li data-row="3" data-col="7" data-sizex="1" data-sizey="1"><div class="handle">15</div></li>
    </ul>
</div>

4.gridster使用说明

gridster插件在chrome与firefox中使用正常，特效显示页正常。但是在ie8一下显示正常，但是拖拽特效无法显示。

演示效果：拖拽插件gridster测试