打开应用程序时不显示推

关闭应用程序后，我的应用程序会很好地接收推送通知。但是当应用程序运行时，我什么也没得到。这是我在以前的应用程序中使用的相同代码，没有任何问题，这些问题在WindowsPhone8上，而新应用程序在WindowsPhone8.1设备上运行。

制作原始应用程序时，我使用了此Push Tutorial。如果您想在应用程序打开时收到通知，我确实会说添加此行。

如果8.1更新对推送通知有所帮助，那将是一件好事。其他任何东西也将不胜感激。

HttpNotificationChannel pushChannel;
string channelName = "PushChannel";
pushChannel = HttpNotificationChannel.Find(channelName);
//Push Notifications
if (pushChannel == null)

{
    pushChannel = new HttpNotificationChannel(channelName);

    //// Register for all the events before attempting to open the channel.
    pushChannel.ChannelUriUpdated += 
      new EventHandler<NotificationChannelUriEventArgs>(
         PushChannel_ChannelUriUpdated);
    pushChannel.ErrorOccurred += 
      new EventHandler<NotificationChannelErrorEventArgs>(
         PushChannel_ErrorOccurred);

    // Register for this notification only if you need to receive 
    // the notifications while your application is running.
    pushChannel.ShellToastNotificationReceived += 
      new EventHandler<NotificationEventArgs>(
         PushChannel_ShellToastNotificationReceived);

    pushChannel.Open();

    // Bind this new channel for toast events.
    pushChannel.BindToShellToast();

}
else...



void PushChannel_ShellToastNotificationReceived(object sender, 
                                                         NotificationEventArgs e)

{
    string relativeUri = string.Empty;

    // Parse out the information that was part of the message.
    foreach (string key in e.Collection.Keys)

    {
        if (string.Compare(
        key,
        "wp:Param",
        System.Globalization.CultureInfo.InvariantCulture,
        System.Globalization.CompareOptions.IgnoreCase) == 0)

        {
            relativeUri = e.Collection[key];
        }


    }
}