wp8 在多个页面中处理原始推送通知

Question

我正在开发一个wp8应用，需求就是以上：

我的服务器发送了一些原始推送通知，我可以在我的主页中成功处理这些通知。但是我有更多页面，所以当用户在其他页面上时，我需要我的应用程序继续获取和处理通知。

到目前为止，我已经尝试添加与主页中相同的代码来处理通知

  string channelName = "test";
            pushChannel = HttpNotificationChannel.Find(channelName);
            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.HttpNotificationReceived += new EventHandler<HttpNotificationEventArgs>(PushChannel_HttpNotificationReceived);

                //pushChannel.ShellToastNotificationReceived += new EventHandler<NotificationEventArgs>(PushChannel_ShellToastNotificationReceived);
                pushChannel.Open();
                // Bind this new channel for toast events.
                //pushChannel.BindToShellToast();
                System.Threading.Thread.Sleep(3000);
                channel = pushChannel.ChannelUri.ToString();
                cSettings.device_notify_id = channel;
            }
            else
            {
                // The channel was already open, so just register for all the events.
                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.HttpNotificationReceived += new EventHandler<HttpNotificationEventArgs>(PushChannel_HttpNotificationReceived);
                System.Threading.Thread.Sleep(3000);
                channel = pushChannel.ChannelUri.ToString();
                cSettings.device_notify_id = channel;
                // Display the URI for testing purposes. Normally, the URI would be passed back to your web service at this point.
            }

和处理程序方法

void PushChannel_ChannelUriUpdated(object sender, NotificationChannelUriEventArgs e)
{
    Dispatcher.BeginInvoke(() =>
    {
        cSettings.device_notify_id = e.ChannelUri.ToString();
        // Display the new URI for testing purposes.   Normally, the URI would be passed back to your web service at this point.
    });
}

void PushChannel_ErrorOccurred(object sender, NotificationChannelErrorEventArgs e)
{
    cSettings set = new cSettings();
    set.LogEx(new Exception((String.Format("A push notification {0} error occurred.  {1} ({2}) {3}",
            e.ErrorType, e.Message, e.ErrorCode, e.ErrorAdditionalData))));

    // Error handling logic for your particular application would be here.
    Dispatcher.BeginInvoke(() =>
        MessageBox.Show(String.Format("A push notification {0} error occurred.  {1} ({2}) {3}",
            e.ErrorType, e.Message, e.ErrorCode, e.ErrorAdditionalData))
            );
}

void PushChannel_HttpNotificationReceived(object sender, HttpNotificationEventArgs e)
{
    string message;
    VibrationDevice vibr = VibrationDevice.GetDefault();
    vibr.Vibrate(TimeSpan.FromSeconds(3));




    using (System.IO.StreamReader reader = new System.IO.StreamReader(e.Notification.Body))
    {
        message = reader.ReadToEnd();
    }
    cSettings set = new cSettings();
    string n_type = "";
    string n_header = "";
    //var obj = set.parse_stringfromnotify(message, ref n_type, ref n_header);
    Dispatcher.BeginInvoke(() => nofication_received_action(message, n_type, ""));
}


   private void nofication_received_action(string n_header, string n_type, object data)
        {
            MessageBoxResult result;
            CallSrvData cdata = new CallSrvData();
            Exception ex = null;
            WP_MemberData m;
            WP_MemberRules wpmr;
            cSettings set;
            MemberRules mr;
            Microsoft.Phone.Shell.ShellToast toast = new Microsoft.Phone.Shell.ShellToast();
            Rules c_rules;


                    Notify.data = data;
                    Notify.msg_box_text = String.Format("{0}", n_header);
                    //dose k data sth forma
                    toast = new Microsoft.Phone.Shell.ShellToast();
                    toast.Content = "Invitation received";
                    toast.Title = "Title : ";
                    //SetProperty(toast, "Sound", new Uri("/data/alert.mp3", UriKind.Relative));
                    toast.NavigationUri = new Uri("/forms/Notify.xaml?type=0", UriKind.Relative);
                    toast.Show();
}

当应用程序处于后台并且我成功获取通知并导航到 Notify.xaml 时，该机制工作正常，但是当我返回或按下开始按钮离开 Notify.xaml 并重新发送通知时什么都没有发生。我尝试在 Notify.xaml 中添加相同的代码，但是当我发送通知时再次没有任何反应。与 android 相比，您只需在应用程序中注册一次监听器，然后即使应用程序“关闭”，您也可以在任何页面中收到通知

非常感谢您的贡献。

Answer 1

我发现我可以在一个类中创建所有通知功能，该类将在 app.cs 上初始化或需要任何时间。