Notification Service Extension issue

LuigiSaggeseLuigiSaggese ITDeveloper Group Leader ✭✭
edited January 2017 in Xamarin.iOS

I have an issue with Notification Service Extension.
I have followed step by step documentation
https://developer.xamarin.com/guides/ios/platform_features/introduction-to-ios10/user-notifications/enhanced-user-notifications/#Working_with_Service_Extensions

To implement i have done in that way.

  • Added Notification Service Extension with same prefix of my app (adding a suffix, ex: APP: com.testapp.main - EXT: com.testapp.main.notificationextension)
  • Created APPID identifier com.testapp.main.notificationextension into Member Center of Apple
  • Created certificate and provisioning profile to send push notification for APP ID com.testapp.main.notificationextension
  • Imported into Xcode and Xamarin certificate and provisioning
  • Build my app with reference to Notification Extension reference.
  • Created archive to upload to TestFlight
  • Signed app with its Distribution Certificate and Provisioning Profile
  • Signed extension with its Distribution Certificate and Provisioning Profile
  • Uploaded to TestFlight
  • Download and allowed push notification for my app
  • Sent rich push notification with my Push Server
  • Device receive push notification but not pass for NotificationService.cs code of Notification Service Extension!

This is my NotificationService code:

using System;
using Foundation;
using UserNotifications;

namespace NotificationServiceExtension
{
    [Register("NotificationService")]
    public class NotificationService : UNNotificationServiceExtension
    {
        Action<UNNotificationContent> ContentHandler { get; set; }
        UNMutableNotificationContent BestAttemptContent { get; set; }
        const string ATTACHMENT_IMAGE_KEY = "ll_attachment_url";
        const string ATTACHMENT_TYPE_KEY = "ll_attachment_type";
        const string ATTACHMENT_FILE_NAME = "-attachment-image.";

        protected NotificationService(IntPtr handle) : base(handle)
        {
            // Note: this .ctor should not contain any initialization logic.
        }

        public override void DidReceiveNotificationRequest(UNNotificationRequest request, Action<UNNotificationContent> contentHandler)
        {
            Console.WriteLine("Notification Service DidReceiveNotificationRequest");
            ContentHandler = contentHandler;
            BestAttemptContent = (UNMutableNotificationContent)request.Content.MutableCopy();
            if (BestAttemptContent != null)
            {
                string imageURL = null;
                string imageType = null;
                if (BestAttemptContent.UserInfo.ContainsKey(new NSString(ATTACHMENT_IMAGE_KEY)))
                {
                    imageURL = BestAttemptContent.UserInfo.ValueForKey(new NSString(ATTACHMENT_IMAGE_KEY)).ToString();
                }
                if (BestAttemptContent.UserInfo.ContainsKey(new NSString(ATTACHMENT_TYPE_KEY)))
                {
                    imageType = BestAttemptContent.UserInfo.ValueForKey(new NSString(ATTACHMENT_TYPE_KEY)).ToString();
                }

                if (imageURL == null || imageType == null)
                {
                    ContentHandler(BestAttemptContent);
                    return;
                }
                var url = NSUrl.FromString(imageURL);
                var task = NSUrlSession.SharedSession.CreateDownloadTask(url, (tempFile, response, error) =>
                {
                    if (error != null)
                    {
                        ContentHandler(BestAttemptContent);
                        return;
                    }
                    if (tempFile == null)
                    {
                        ContentHandler(BestAttemptContent);
                        return;
                    }
                    var cache = NSSearchPath.GetDirectories(NSSearchPathDirectory.CachesDirectory, NSSearchPathDomain.User, true);
                    var cachesFolder = cache[0];
                    var guid = NSProcessInfo.ProcessInfo.GloballyUniqueString;
                    var fileName = guid + ATTACHMENT_FILE_NAME + imageType;
                    var cacheFile = cachesFolder + fileName;
                    var attachmentURL = NSUrl.CreateFileUrl(cacheFile, false, null);
                    NSError err = null;
                    NSFileManager.DefaultManager.Move(tempFile, attachmentURL, out err);
                    if (err != null)
                    {
                        ContentHandler(BestAttemptContent);
                        return;
                    }
                    UNNotificationAttachmentOptions options = null;
                    var attachment = UNNotificationAttachment.FromIdentifier("", attachmentURL, options, out err);
                    if (attachment != null)
                    {
                        BestAttemptContent.Attachments = new UNNotificationAttachment[] { attachment };
                    }
                    ContentHandler(BestAttemptContent);
                    return;
                });
                task.Resume();
            }
            else {
                ContentHandler(BestAttemptContent);
            }
        }

        public override void TimeWillExpire()
        {
            // Called just before the extension will be terminated by the system.
            // Use this as an opportunity to deliver your "best attempt" at modified content, otherwise the original push payload will be used.
            ContentHandler(BestAttemptContent);
            return;
        }

    }
}

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