Framework7 - 预加载器模式

描述

预加载器模式定义后台操作并在此操作期间停止用户操作。它使用以下方法打开预加载器模式 −

myApp.showPreloader([title])
- title − 这是一个可选方法，显示带有标题的预加载器模式。

示例

以下示例演示了在 Framework7 中使用预加载器模式，它在加载模式时指示一些后台活动 −

<!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>Preloader Modal</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 = "center sliding">Preloader Modal</div>
               </div>
            </div>
            
            <div class = "pages">
               <div data-page = "index" class = "page navbar-fixed">
                  <div class = "page-content">
                     <div class = "content-block">
                        <p><a href = "#" class = "preloader_open">Display the Preloader</a></p>
                        <p><a href = "#" class = "preloader_title">Display the Preloader with title</a></p>
                     </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>
         
      <script>
         // 您可以在此处初始化应用程序
         var myApp = new Framework7();

         // 如果您使用自定义 DOM 库，则将其保存到 $$ 变量
         var $$ = Dom7;

         // 添加视图
         var mainView = myApp.addView('.view-main', {
            // 为该视图启用动态导航栏:
            dynamicNavbar: true
         });

         $$('.preloader_open').on('click', function () {
            myApp.showPreloader();
            setTimeout(function () {
               myApp.hidePreloader();
            }, 1500);
         });
         
         $$('.preloader_title').on('click', function () {
            myApp.showPreloader('My Title')
            setTimeout(function () {
               myApp.hidePreloader();
            }, 1500);
         });
      </script>
   </body>

</html>