Question

我正在开发一个Windows 10 UWP应用程序，我在原始通知发送和处理方面遇到了问题。

我从用php编写的服务器发送通知，当应用程序打开时，我可以收到发送的原始通知。以下是我的通知模板：

           <toast launch='args'>
                <visual>
                    <binding template = 'ToastGeneric'>
                         <text> başlık </text>
                         <text> Açıklama </text>
                        </binding>
                    </visual>
            </toast>

我将上面的模板作为原始通知发送。

另外，我使用以下方法作为backgroundtask

public void Run(IBackgroundTaskInstance taskInstance)
    {
        // Get the background task details
        ApplicationDataContainer settings = ApplicationData.Current.LocalSettings;
        string taskName = taskInstance.Task.Name;

        Debug.WriteLine("Background " + taskName + " starting...");

        // Store the content received from the notification so it can be retrieved from the UI.
        RawNotification notification = (RawNotification)taskInstance.TriggerDetails;
        settings.Values[taskName] = notification.Content;
        Windows.Data.Xml.Dom.XmlDocument doc = new XmlDocument();

        var toast = new ToastNotification(doc);
        var center = ToastNotificationManager.CreateToastNotifier();
        center.Show(toast);


        Debug.WriteLine("Background " + taskName + " completed!");
    }

我在appmanifest中设置了任务入口点，我无法使用调试器进行测试。

我使用以下代码注册后台任务：

 private void RegisterBackgroundTask()
    {
        BackgroundTaskBuilder taskBuilder = new BackgroundTaskBuilder();
        PushNotificationTrigger trigger = new PushNotificationTrigger();
        taskBuilder.SetTrigger(trigger);

        // Background tasks must live in separate DLL, and be included in the package manifest
        // Also, make sure that your main application project includes a reference to this DLL
        taskBuilder.TaskEntryPoint = SAMPLE_TASK_ENTRY_POINT;
        taskBuilder.Name = SAMPLE_TASK_NAME;

        try
        {
            BackgroundTaskRegistration task = taskBuilder.Register();
            task.Completed += BackgroundTaskCompleted;
        }
        catch (Exception ex)
        {
            // rootPage.NotifyUser("Registration error: " + ex.Message, NotifyType.ErrorMessage);
            UnregisterBackgroundTask();
        }
    }

最后，我的接受事件：

private async void OnPushNotificationReceived(PushNotificationChannel sender, PushNotificationReceivedEventArgs e)
    {
        if (e.NotificationType == PushNotificationType.Raw)
        {
            e.Cancel = false;

            Windows.Data.Xml.Dom.XmlDocument doc = new Windows.Data.Xml.Dom.XmlDocument();

            var t = @" <toast launch='args'>
                <visual>
                    <binding template = 'ToastGeneric'>
                         <text> başlık </text>
                         <text> Açıklama </text>
                        </binding>
                    </visual>
            </toast> ";

            doc.LoadXml(t);

            var toast = new ToastNotification(doc);
            var center = ToastNotificationManager.CreateToastNotifier();
            center.Show(toast);
        }
    }

该方法的内部仅用于测试。

现在，我想问一下我的结构中有什么问题或错过了什么？任何建议，例子或帮助都表示赞赏。

提前致谢。

Answer 1

您是否签入了已检查的舱单声明＆＃34;推送通知＆＃34;？

您还需要在RegisterBackgroundTask方法调用

的顶部

await BackgroundExecutionManager.RequestAccessAsync();

以下是文档https://msdn.microsoft.com/pl-pl/library/hh700494.aspx，其中包含重要句子＆＃34;请求允许应用运行后台任务。＆＃34;

最后检查入口点和后台任务的名称

应用程序停止时c＃windows 10原始通知

1 个答案: