如何將推送通知發送到多個設備（iOS）？

Question

我試圖優化我的服務器上的推送通知。現在我把它們一個接一個送出去（有一個老圖書館），需要一段時間（4小時）。

我重構了我的服務來發送一個帶有很多設備標記的通知（現在我嘗試了一批500個標記）。爲此，我使用Redth/PushSharp庫。我跟着sample code然後我調整它發送通知給幾個設備令牌。

PushService service = new PushService(); 

//Wire up the events 
service.Events.OnDeviceSubscriptionExpired += new PushSharp.Common.ChannelEvents.DeviceSubscriptionExpired(Events_OnDeviceSubscriptionExpired); 
service.Events.OnDeviceSubscriptionIdChanged += new PushSharp.Common.ChannelEvents.DeviceSubscriptionIdChanged(Events_OnDeviceSubscriptionIdChanged); 
service.Events.OnChannelException += new PushSharp.Common.ChannelEvents.ChannelExceptionDelegate(Events_OnChannelException); 
service.Events.OnNotificationSendFailure += new PushSharp.Common.ChannelEvents.NotificationSendFailureDelegate(Events_OnNotificationSendFailure); 
service.Events.OnNotificationSent += new PushSharp.Common.ChannelEvents.NotificationSentDelegate(Events_OnNotificationSent); 
service.Events.OnChannelCreated += new PushSharp.Common.ChannelEvents.ChannelCreatedDelegate(Events_OnChannelCreated); 
service.Events.OnChannelDestroyed += new PushSharp.Common.ChannelEvents.ChannelDestroyedDelegate(Events_OnChannelDestroyed); 

//Configure and start ApplePushNotificationService 
string p12Filename = ... 
string p12FilePassword = ... 

var appleCert = File.ReadAllBytes(p12Filename); 

service.StartApplePushService(new ApplePushChannelSettings(true, appleCert, p12FilePassword)); 

var appleNotification = NotificationFactory.Apple(); 

foreach (var itemToProcess in itemsToProcess) 
{ 
    itemToProcess.NotificationDateTime = DateTime.Now; 
    mobile.SubmitChanges(); 

    string deviceToken = GetCleanDeviceToken(itemToProcess.MobileDevice.PushNotificationIdentifier); 
    appleNotification.ForDeviceToken(deviceToken); 
} 

service.QueueNotification(appleNotification 
    .WithAlert(itemsToProcess[0].MobileDeviceNotificationText.Text) 
    .WithSound("default") 
    .WithBadge(0) 
    .WithCustomItem("View", itemsToProcess[0].Value.ToString())); 

//Stop and wait for the queues to drains 
service.StopAllServices(true); 

然後我試着發送3個通知給2個設備。只有第一個設備得到了它們（問題與設備無關，因爲我試圖單獨使用它們）。 之後，在PushChannelBase class中拋出了OperationCanceledException。所以我不知道什麼是錯的。任何想法？

Answer 1

您應該爲要處理的每個項目排隊一個單獨的通知。
無法在單個通知上設置多個設備令牌。 OperationCanceledException將會發生，因爲你這樣做。

Answer 2

例如：控制檯C＃應用程序

這是假設

1. 你有效的生產和開發證書
2. 您已在數據庫中存儲多個設備令牌
3. 你有一個通知來自您的數據庫

4. 您正在使用PushSharp圖書館

   using System; 
   using System.Collections.Generic; 
   using System.Linq; 
   using System.Text; 
   using PushSharp; 
   using PushSharp.Core; 
   using PushSharp.Apple; 
   using System.IO; 
   
   namespace MyNotification 
   { 
       class Program 
       { 
        //args may take "true" or "false" to indicate the app is running for 
        //development or production (Default = false which means Development) 
        static void Main(string[] args) 
        { 
         bool isProduction = false; 
         if (args != null && args.Length == 1) 
         { 
          Console.Write(args[0] + Environment.NewLine); 
          bool.TryParse(args[0], out isProduction); 
         } 
         try 
         { 
          //Gets a notification that needs sending from database 
          AppNotification notification = AppNotification.GetNotification(); 
          if (notification != null && notification.ID > 0) 
          {   
           //Gets all devices to send the above notification to   
           List<IosDevice> devices = IosDevice.GetDevices(!isProduction); 
           if (devices != null && devices.Count > 0) 
           { 
            PushBroker push = new PushBroker();//a single instance per app 
            //Wire up the events for all the services that the broker registers 
            push.OnNotificationSent += NotificationSent; 
            push.OnChannelException += ChannelException; 
            push.OnServiceException += ServiceException; 
            push.OnNotificationFailed += NotificationFailed; 
            push.OnDeviceSubscriptionExpired += DeviceSubscriptionExpired; 
            push.OnChannelCreated += ChannelCreated; 
            push.OnChannelDestroyed += ChannelDestroyed; 
            //make sure your certifcates path are all good 
            string apnsCertFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "../../Certificate/Certificates_Apple_Push_Production.p12"); 
            if (!isProduction) 
             apnsCertFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "../../Certificate/Certificates_Apple_Push_Development.p12"); 
            var appleCert = File.ReadAllBytes(apnsCertFile); 
            push.RegisterAppleService(new ApplePushChannelSettings(isProduction, appleCert, "135TrID35")); //Extension method 
   
            foreach (IosDevice device in devices) 
            { 
             //if it is required to send additional information as well as the alert message, uncomment objects[] and WithCustomItem 
             //object[] obj = { "North", "5" }; 
   
             push.QueueNotification(new AppleNotification() 
             .ForDeviceToken(device.DeviceToken) 
             .WithAlert(DateTime.Now.ToString())//(notification.AlertMessage) 
              //.WithCustomItem("Link", obj) 
             .WithBadge(device.BadgeCount + 1) 
             .WithSound(notification.SoundFile));//sound.caf 
            } 
            push.StopAllServices(waitForQueuesToFinish: true); 
           } 
          } 
          Console.WriteLine("Queue Finished, press return to exit..."); 
          Console.ReadLine(); 
         } 
         catch (Exception ex) 
         { 
          Console.WriteLine(ex.Message); 
          Console.ReadLine(); 
         } 
        } 
   
        static void NotificationSent(object sender, INotification notification) 
        { 
         Console.WriteLine("Sent: " + sender + " -> " + notification); 
        } 
   
        static void NotificationFailed(object sender, INotification notification, Exception notificationFailureException) 
        { 
         Console.WriteLine("Failure: " + sender + " -> " + notificationFailureException.Message + " -> " + notification); 
        } 
   
        static void ChannelException(object sender, IPushChannel channel, Exception exception) 
        { 
         Console.WriteLine("Channel Exception: " + sender + " -> " + exception); 
        } 
   
        static void ServiceException(object sender, Exception exception) 
        { 
         Console.WriteLine("Service Exception: " + sender + " -> " + exception); 
        } 
   
        static void DeviceSubscriptionExpired(object sender, string expiredDeviceSubscriptionId, DateTime timestamp, INotification notification) 
        { 
         Console.WriteLine("Device Subscription Expired: " + sender + " -> " + expiredDeviceSubscriptionId); 
        } 
   
        static void ChannelDestroyed(object sender) 
        { 
         Console.WriteLine("Channel Destroyed for: " + sender); 
        } 
   
        static void ChannelCreated(object sender, IPushChannel pushChannel) 
        { 
         Console.WriteLine("Channel Created for: " + sender); 
        } 
       } 
   
   }