下雨了
下雨了
  • 发布:2018-11-14 09:45
  • 更新:2018-11-14 10:52
  • 阅读:2022

上拉加载,用ajax如何判断,加载完所有数据了?

分类:MUI

希望有个ajax请求demo,看一下思路如何判断。看官方的demo,

<!DOCTYPE html>  
<html>  

    <head>  
        <meta charset="utf-8">  
        <title>Hello MUI</title>  
        <meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no">  
        <meta name="apple-mobile-web-app-capable" content="yes">  
        <meta name="apple-mobile-web-app-status-bar-style" content="black">  
        <link rel="stylesheet" href="../css/mui.min.css">  
        <style>  
            html,  
            body {  
                background-color: #efeff4;  
            }  

            .title {  
                padding: 20px 15px 10px;  
                color: #6d6d72;  
                font-size: 15px;  
                background-color: #fff;  
            }  
        </style>  
    </head>  

    <body>  
        <div id="pullrefresh" class="mui-content mui-scroll-wrapper">  
            <div class="mui-scroll">  
                <div class="title">  
                    这是webview模式选项卡中的第1个子页面  
                </div>  
                <ul class="mui-table-view mui-table-view-chevron">  
                    <!--<li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 1</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 2</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 3</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 4</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 5</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 6</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 7</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 8</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 9</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 10</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 11</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 12</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 13</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 14</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 15</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 16</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 17</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 18</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 19</a>  
                    </li>  
                    <li class="mui-table-view-cell">  
                        <a href="" class="mui-navigate-right">推荐-Item 20</a>  
                    </li>-->  
                </ul>  
            </div>  
        </div>  
        <script src="../js/mui.min.js"></script>  
        <script>  
            mui.init({  
                swipeBack: false,  
                keyEventBind: {  
                    backbutton: false //关闭back按键监听  
                },  
                pullRefresh: {  
                    container: '#pullrefresh',  
                    up: {  
                        contentrefresh: '正在加载...',  
                        callback: pullupRefresh  
                    }  
                }  
            });  
            var count = 0;  
            /**  
             * 上拉加载具体业务实现  
             */  
            function pullupRefresh() {  
                setTimeout(function() {  
                    mui('#pullrefresh').pullRefresh().endPullupToRefresh((++count > 2)); //参数为true代表没有更多数据了。  
                    var table = document.body.querySelector('.mui-table-view');  
                    var cells = document.body.querySelectorAll('.mui-table-view-cell');  
                    for(var i = cells.length, len = i + 20; i < len; i++) {  
                        var li = document.createElement('li');  
                        li.className = 'mui-table-view-cell';  
                        li.innerHTML = '<a class="mui-navigate-right">推荐-Item ' + (i + 1) + '</a>';  
                        table.appendChild(li);  
                    }  
                }, 1000);  
            }  
        </script>  
    </body>  

</html>
2018-11-14 09:45 负责人:无 分享
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回梦無痕

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...上拉加载是服务器返回一个数组的,那么
1.前后台会约定好每一次加载数量。

  1. 如果服务器返回数组数量为少于约定数量或者数量为0,就视为列表已经到底了。
  2. 或者服务器返回另一参数告诉前端,服务器已经没有数据了。

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