c# – Windows Phone 8推送通知推送通道始终创建新的通道uri

每次我打开我的应用程序(实际上我只在特定页面上注册推送通道,所以每次我从该页面来回移动)都会创建一个新的推送通道URI,我将其存储在我的移动服务数据库中以发送推送通知.这对我来说似乎不正确,因为每次打开app / page时都会生成一个新的推送通道URI,因此每个使用我的应用程序的设备的通道URI列表都会增长和增长.我假设您创建了一个推送通道,存储通道URI并根据需要推送到它.我会在这里注意到我正在使用原始推送通知.

我知道推送频道每隔一段时间就会过期,但对我而言,每次我退出应用程序/页面时都会发生这种情况,因此当调用onNavigateTo时,我发现确实存在的推送频道,并且始终创建新的频道URI.它是否正确？

我的代码如下：

protected override void OnNavigatedTo(NavigationEventArgs e)
????????{
???????????registerPushChannel();
?????????}

private void registerPushChannel()
    {
        // The name of our push channel.
        string channelName = "RawSampleChannel";

        // Try to find the push channel.
        pushChannel = HttpNotificationChannel.Find(channelName);

        // If the channel was not found,then create a new connection to the push service.
        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);
            pushChannel.HttpNotificationReceived += new EventHandler<HttpNotificationEventArgs>(PushChannel_HttpNotificationReceived);

            pushChannel.Open();

        }
        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);
            pushChannel.HttpNotificationReceived += new EventHandler<HttpNotificationEventArgs>(PushChannel_HttpNotificationReceived);

            // code which passes the new channel URI back to my web service               

        }

    }

protected override void OnNavigatedFrom(NavigationEventArgs e)
    {
        pushChannel.Close();
    }

因此,为了澄清,应用程序已打开,推送频道已注册,频道uri已保存在我的网络服务中.然后,Web服务将通知发送到通道uri.当我退出应用程序或页面并返回它时,找到推送通道但创建了一个新的通道uri,我再次将其保存到我的Web服务.我的频道表实际上正在不断增长和发展.

那么它应该如何与不断生成的新通道URI一起使用？这对我来说没什么意义.我不确定烤面包和磁贴通知是如何工作的,但我认为当应用程序关闭时,通道URI需要是静态的,以便在应用程序关闭时继续接收通知,但也许这可能是bindtotoast和bindtotile的功能,所以我正在做的是正确的,因为它与原始通知有关.