在应用运行时接收通知

本文关键字：通知 运行时 应用 | 更新日期: 2023-09-27 18:35:41

害怕问一个以前可能被问过的问题，但我的搜索技能无法找到。好的，所以开始了。

我有 Windows Phone 8 应用，当我的应用未在前台运行时，我可以在其中接收磁贴更新和通知。我通过遵循 http://msdn.microsoft.com/en-us/library/windowsphone/develop/hh202940（v=vs.105）来做到这一点.aspx

在该链接中，我了解到要在应用程序运行时获取通知，我应该简单地为接收案例附加一个事件。这是我在我的 AcquirePushChannel（） 函数中完成的，它如下所示：

public static void AcquirePushChannel()
    {
        CurrentChannel = HttpNotificationChannel.Find("MyPushChannel");

        if (CurrentChannel == null)
        {
            CurrentChannel = new HttpNotificationChannel("MyPushChannel");
            CurrentChannel.Open();
            if (!CurrentChannel.IsShellToastBound)
            {
                CurrentChannel.BindToShellTile();
            }
            CurrentChannel.BindToShellToast();
            CurrentChannel.ShellToastNotificationReceived += new EventHandler<NotificationEventArgs>(Push_NotificationRecieved);
        }
        if (!CurrentChannel.IsShellTileBound)
        {
            CurrentChannel.BindToShellToast();
            CurrentChannel.ShellToastNotificationReceived += new EventHandler<NotificationEventArgs>(Push_NotificationRecieved);
        }
            CurrentChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(Push_NotificationChannelChanged);
    }

我已经实现了CurrentChannel.ChannelUriUpdate，对于channelUri更改的情况，我执行了一些代码来更改云中的ChannelsTable。我的Push_NotificationRecieved如下所示：

private static void Push_NotificationRecieved(object sender, NotificationEventArgs e)
    {
        StringBuilder message = new StringBuilder();
        string relativeUri = string.Empty;
        message.AppendFormat("Received Toast {0}:'n", DateTime.Now.ToShortTimeString());
        // Parse out the information that was part of the message.
        foreach (string key in e.Collection.Keys)
        {
            message.AppendFormat("{0}: {1}'n", key, e.Collection[key]);
            if (string.Compare(
                key,
                "wp:Param",
                System.Globalization.CultureInfo.InvariantCulture,
                System.Globalization.CompareOptions.IgnoreCase) == 0)
            {
                relativeUri = e.Collection[key];
            }
        }
        // Display a dialog of all the fields in the toast.
        MessageBox.Show(message.ToString());
        //Dispatcher.BeginInvoke((message) => MessageBox.Show(message.ToString()));
    }

我不明白为什么通知未注册。由于在云中的登录中我收到 Toast 通知已收到？

有什么想法吗？此外，我可以显示代码中的 Toast 或类似的东西，据我所知，这是不可能的？

额外

尝试将功能更改为公共功能，但没有帮助解决问题。任何人都知道为什么事件没有触发。

在应用运行时接收通知

你发布的答案几乎是正确的。从上一个开始，你有：

public static void AcquirePushChannel()
{
    CurrentChannel = HttpNotificationChannel.Find("MyPushChannel");

    if (CurrentChannel == null)
    {
        CurrentChannel = new HttpNotificationChannel("MyPushChannel");
        CurrentChannel.Open();
        if (!CurrentChannel.IsShellToastBound)
        {
            CurrentChannel.BindToShellTile();
        }
        CurrentChannel.BindToShellToast();
    }
    if (!CurrentChannel.IsShellTileBound)
    {
        CurrentChannel.BindToShellToast();
    }
        CurrentChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(Push_NotificationChannelChanged);
        CurrentChannel.ShellToastNotificationReceived += CurrentChannel_ShellToastNotificationReceived;
}

为此，您必须添加：

private static void CurrentChannel_ShellToastNotificationReceived(object sender, NotificationEventArgs e)
{
    StringBuilder message = new StringBuilder();
    string relativeUri = string.Empty;
    message.AppendFormat("Received Toast {0}:'n", DateTime.Now.ToShortTimeString());
    // Parse out the information that was part of the message.
    foreach (string key in e.Collection.Keys)
    {
        message.AppendFormat("{0}: {1}'n", key, e.Collection[key]);
        if (string.Compare(
            key,
            "wp:Param",
            System.Globalization.CultureInfo.InvariantCulture,
            System.Globalization.CompareOptions.IgnoreCase) == 0)
        {
            relativeUri = e.Collection[key];
        }
    }
    // Display a dialog of all the fields in the toast.
    MessageBox.Show(message.ToString());
}

因此，您发送的所有内容都在电子收藏中。因此，您可以从服务器发送各种参数。

当然，

就在我设置了赏金运行之后，我就让它工作了。所以这是更新的代码。

public static void AcquirePushChannel()
{
    CurrentChannel = HttpNotificationChannel.Find("MyPushChannel");

    if (CurrentChannel == null)
    {
        CurrentChannel = new HttpNotificationChannel("MyPushChannel");
        CurrentChannel.Open();
        if (!CurrentChannel.IsShellToastBound)
        {
            CurrentChannel.BindToShellTile();
        }
        CurrentChannel.BindToShellToast();
    }
    if (!CurrentChannel.IsShellTileBound)
    {
        CurrentChannel.BindToShellToast();
    }
        CurrentChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(Push_NotificationChannelChanged);
        CurrentChannel.ShellToastNotificationReceived += CurrentChannel_ShellToastNotificationReceived;
}

好的，这样做的原因是您需要在每次启动时设置事件。然后你会得到想要的属性。然后，您必须创建自己的代码来获取所需的:)

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