Framework7 - Preloader Modal

Description

The Preloader modal defines the background action and stops the user actions during this action. It uses the following method to open the preloader modal −

myApp.showPreloader([title])
- title − It is an optional method that displays the preloader modal with the title.

Example

The following example demonstrates the use of preloader modal in Framework7, which indicates some background activity while loading the modal −

<!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>
         // Here you can initialize the app
         var myApp = new Framework7();

         // If your using custom DOM library, then save it to $$ variable
         var $$ = Dom7;

         // Add the view
         var mainView = myApp.addView('.view-main', {
            // enable the dynamic navbar for this view:
            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>

Output

Let us carry out the following steps to see how the above given code works −

Save the above given HTML code as modal_preloader.html file in your server root folder.
Open this HTML file as http://localhost/modal_preloader.html and the output is displayed as shown below.
When the first option is clicked, it displays the preloader model.
When the second option is clicked, it displays the preloader model along with the title.

framework7_overlays.htm