获取 Windows Phone 的 User-Agent 字符串

[代码] 使用方法01public partial class HomeView: PhoneApplicationPage02{03 public HomeView()04 {

L_serein

1435人浏览 · 2013-01-29 00:35:54

L_serein · 2013-01-29 00:35:54 发布

[代码] 使用方法

    
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       public partial class HomeView : PhoneApplicationPage
      
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       {
      
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           public HomeView()
      
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           {
      
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               InitializeComponent();
      
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               Loaded += HomeView_Loaded;
      
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           }
      
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           private void HomeView_Loaded(object sender, RoutedEventArgs e)
      
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           {
      
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               UserAgentHelper.GetUserAgent(
      
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                   LayoutRoot,
      
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                   userAgent =>
      
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                       {
      
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                           // TODO: Store this wherever you want
      
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                           ApplicationSettings.Current.UserAgent = userAgent;
      
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                       });
      
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           }
      
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       }

[代码] 工具类

    
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       public static class UserAgentHelper
      
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       {
      
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           private const string Html =
      
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               @"<!DOCTYPE HTML PUBLIC ""-//W3C//DTD HTML 4.01 Transitional//EN"">
      
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               <html>
      
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               <head>
      
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               <script language=""javascript"" type=""text/javascript"">
      
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                   function notifyUA() {
      
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                      window.external.notify(navigator.userAgent);
      
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                   }
      
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               </script>
      
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               </head>
      
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               <body onload=""notifyUA();""></body>
      
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               </html>";
      
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           public static void GetUserAgent(Panel rootElement, Action<string> callback)
      
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           {
      
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               var browser = new Microsoft.Phone.Controls.WebBrowser();
      
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               browser.IsScriptEnabled = true;
      
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               browser.Visibility = Visibility.Collapsed;
      
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               browser.Loaded += (sender, args) => browser.NavigateToString(Html);
      
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               browser.ScriptNotify += (sender, args) =>
      
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                                           {
      
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                                               string userAgent = args.Value;
      
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                                               rootElement.Children.Remove(browser);
      
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                                               callback(userAgent);
      
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                                           };
      
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               rootElement.Children.Add(browser);
      
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           }
      
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       }