声明:虽然本文章为原创,但是很大部分参考了博客园博主MRxia的一篇iscroll的下拉刷新的实现方式,我个人把demo简化了一下。
实现效果:类似网易新闻加载新闻列表(好吧,我的只能算是基础版,如要添加动图或者css样式或者canvas效果请自行脑补)
外部引入js文件,必须是iscroll-probe.js,这点是很重要的,因为基础版的 iscroll.js 插件并不支持实例化的IScroll对象的on事件绑定,当然还是要引入jQuery简化一下开发
以下是全局的css样式,当然你也可以直接复制过去,前面的是默认的iscroll的demo的样式,后面的pulldown-tips样式是作为绝对定位,当用户下拉不超过40px时显示“下拉刷新”的提示,下拉刷新后会被隐藏起来
<style type="text/css"> * { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; } html { -ms-touch-action: none; } body,ul,li { padding: 0; margin: 0; border: 0; } body { font-size: 12px; font-family: ubuntu, helvetica, arial; overflow: hidden; /* this is important to prevent the whole page to bounce */ } #header { position: absolute; z-index: 2; top: 0; left: 0; width: 100%; height: 45px; line-height: 45px; background: #CD235C; padding: 0; color: #eee; font-size: 20px; text-align: center; font-weight: bold; } #footer { position: absolute; z-index: 2; bottom: 0; left: 0; width: 100%; height: 48px; background: #444; padding: 0; border-top: 1px solid #444; } #wrapper { position: absolute; z-index: 1; top: 45px; bottom: 48px; left: 0; width: 100%; background: #ccc; overflow: hidden; } #scroller { position: absolute; z-index: 1; -webkit-tap-highlight-color: rgba(0,0,0,0); width: 100%; -webkit-transform: translateZ(0); -moz-transform: translateZ(0); -ms-transform: translateZ(0); -o-transform: translateZ(0); transform: translateZ(0); -webkit-touch-callout: none; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; -webkit-text-size-adjust: none; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -o-text-size-adjust: none; text-size-adjust: none; } #scroller ul { list-style: none; padding: 0; margin: 0; width: 100%; text-align: left; } #scroller li { padding: 0 10px; height: 40px; line-height: 40px; border-bottom: 1px solid #ccc; border-top: 1px solid #fff; background-color: #fafafa; font-size: 14px; } #pullDown,#pullUp,.pulldown-tips{ height:40px; line-height:40px; text-align:center; } .pulldown-tips{ position:absolute; top:-40px; left:0; width:100%; } </style>
html结构在默认demo的基础上在scoller里面添加刷新/加载数据提示
<body onload="load()"> <div id="header">iScroll</div> <div id="wrapper"> <div id="scroller"> <div id="pullDown" class=""><div class="pullDownLabel"></div></div> <div class="pulldown-tips">下拉刷新</div> <ul id="list"> <li>Pretty row 1</li> <li>Pretty row 2</li> <li>Pretty row 3</li> <li>Pretty row 4</li> <li>Pretty row 5</li> <li>Pretty row 6</li> <li>Pretty row 7</li> <li>Pretty row 8</li> <li>Pretty row 9</li> <li>Pretty row 10</li> <li>Pretty row 11</li> <li>Pretty row 12</li> <li>Pretty row 13</li> <li>Pretty row 14</li> <li>Pretty row 15</li> <li>Pretty row 16</li> <li>Pretty row 17</li> <li>Pretty row 18</li> <li>Pretty row 19</li> <li>Pretty row 20</li> </ul> <div id="pullUp" class=""> <div class="pullUpLabel">加载更多</div> </div> </div> </div> <div id="footer"></div> </body>
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