Framework7 无限滚动

17 Mar 2025 | 4 分钟阅读

当您想要加载更多内容并在页面接近底部时执行所需的操作时，将使用无限滚动。

语法

<div class = "page">
   <div class = "page-content infinite-scroll" data-distance = "100">
      ...
   </div>
</div>

其中

page-content infinite-scroll： 用于无限滚动容器。

data-distance： 此属性用于配置触发无限滚动事件的页面底部距离（以 px 为单位），其默认值为 50px。

在顶部添加无限滚动

您还可以在页面顶部使用无限滚动，只需向 "page-content" 添加额外的 "infinite-scroll-top" 类即可。

<div class = "page">
   <div class = "page-content infinite-scroll infinite-scroll-top">
      ...
   </div>
</div> 

无限滚动事件

infinite： 当页面滚动到达指定距离到页面底部时触发。它将由 div 类 = "page-content infinite-scroll" 确定目标。

有两个 App 的方法可与无限滚动容器一起使用

要将无限滚动事件监听器添加到指定的 HTML 容器，请使用以下方法

您可以通过使用以下方法从指定的 HTML 容器中删除无限滚动事件监听器

这里，参数是作为无限滚动容器使用的必需选项，即 HTMLElement 或字符串。

Framework7 无限滚动示例

让我们举一个例子来演示无限滚动，它在页面滚动接近底部时加载更多内容

<!DOCTYPE html>
<html>

   <head>
      <meta name = "viewport" content = "width = device-width, initial-scale = 1, 
         maximum-scale = 1, minimum-scale = 1, user-scalable = no, minimal-ui" />
      <meta name="apple-mobile-web-app-capable" content="yes" />
      <meta name = "apple-mobile-web-app-status-bar-style" content = "black" />
      <title>infinite_scroll</title>
      <link rel = "stylesheet" 
         href = "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/css/framework7.ios.min.css" />
      <link rel = "stylesheet" 
         href = "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/css/framework7.ios.colors.min.css" />
   </head>
   
   <body>
      <div class = "views">
         <div class = "view view-main">
         
            <div class = "navbar">
               <div class = "navbar-inner">
                  <div class = "left"> </div>
                  <div class = "center sliding">Infinite Scroll</div>
                  <div class = "right"> </div>
               </div>
            </div>
         
            <div class = "pages navbar-through">
               <div data-page = "home" class = "page">
                  <div class = "page-content infinite-scroll">
                     <div class = "list-block">
                        <ul>
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 1</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 2</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 3</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 4</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 5</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 6</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 7</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 8</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 9</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 10</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 11</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 12</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 13</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 14</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 15</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 16</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 17</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 18</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 19</div>
                              </div>
                           </li>
                        
                           <li class = "item-content">
                              <div class = "item-inner">
                                 <div class = "item-title">Item 20</div>
                              </div>
                           </li>
                        </ul>
                     </div>
                  
                     <div class = "infinite-scroll-preloader">
                        <div class = "preloader"></div>
                     </div>
                  </div>
               </div>
            </div>
         
         </div>
      </div>
      
      <script type = "text/javascript" 
         src = "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/js/framework7.min.js"></script>
         
      <style>
         .infinite-scroll-preloader {
            margin-top:-20px;
            margin-bottom:10px;
            text-align:center;
         }
         
         .infinite-scroll-preloader .preloader {
            width:34px;
            height:34px;
         }
      </style>
      
      <script>
         var myApp = new Framework7();
         var $$ = Dom7;

         // Loading flag
         var loading = false;

         // Last loaded index
         var lastIndex = $$('.list-block li').length;

         // Max items to load
         var maxItems = 60;

         // Append items per load
         var itemsPerLoad = 20;

         // Attach 'infinite' event handler
         $$('.infinite-scroll').on('infinite', function () {

            // Exit, if loading in progress
            if (loading) return;

            // Set loading flag
            loading = true;

            // Emulate 1s loading
            setTimeout(function () {
               // Reset loading flag
               loading = false;

               if (lastIndex >= maxItems) {
                  // Nothing more to load, detach infinite scroll events to prevent unnecessary loadings
                  myApp.detachInfiniteScroll($$('.infinite-scroll'));
                  
                  // Remove preloader
                  $$('.infinite-scroll-preloader').remove();
                  return;
               }

               // Generate new items HTML
               var html = '';
               for (var i = lastIndex + 1; i <= lastIndex + itemsPerLoad; i++) {
                  html += '<li class = "item-content">
                     <div class = "item-inner">
                        <div class = "item-title">
                           Item ' + i + '
                        </div>
                     </div>
                  </li>';
               }

               // Append new items
               $$('.list-block ul').append(html);

               // Update last loaded index
               lastIndex = $$('.list-block li').length;
            }, 1000);
         });
      </script>
   </body>
</html>

立即测试

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