jQuery Mobile - 定位事件

更新于 2024/12/21 9:40:00

描述

当用户使用 orientationchange 事件垂直或水平旋转设备时，您可以触发方向事件。它使用 window.orientation 属性来指定窗口或设备是设置为垂直还是水平方向。

示例

以下示例描述了在 jQuery Mobile 框架中使用 orientation 事件。

<!DOCTYPE html>
   <head>
      <title>Orientation Event</title>
      <meta name = "viewport" content = "width = device-width, initial-scale = 1">
      <link rel = "stylesheet" href = "https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css">
      <script src = "https://code.jquery.com/jquery-1.11.3.min.js"></script>
      <script src = "https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
      
      <script>
         $(document).on("pagecreate","#page1",function(event) {
            $(window).on("orientationchange",function() {
               if(window.orientation == 0) {
                  $("p").text("portrait orientation!!!");
               } else {
                  $("p").text("landscape orientation!!!");
               }
            });
         });
      </script>
   </head>
   
   <body>
      <div data-role = "page" id = "page1">
         <div data-role = "header">
            <h2>Header</h2>
         </div>

         <div data-role = "main" class = "ui-content">
            <p>To see the orientation effect, you must rotate your window...</p>
         </div>

         <div data-role = "footer">
            <h2>Footer</h2>
         </div>
      
      </div>
   </body>
</html>