How to use Service Extension for UNNotificationServiceExtension with MAUI ?

Question

How to use Service Extension for UNNotificationServiceExtension with MAUI ?

Peter Bozovic 1

I'm trying to implement iOS push notifications by following this guide:
https://learn.microsoft.com/en-us/xamarin/ios/platform/user-notifications/enhanced-user-notifications

At the end, there is "Implementing a Service Extension" which is exactly what I need since I have encrypted messages.
But I don't see how to do this with MAUI project or new net6-android framework ?

If someone have some example or can point me in the right direction I would be very grateful !

Thanks :)

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-06-15T10:00:04.67+00:00

May I ask If you can get notification in your MAUI project without iOS Notification Service Extension? I mean that if your APNs cer and profile has been set correctly, and you have set <key>aps-environment</key> in your Entitlements.plist file and you can receive the remote notification.

In Xamarin.iOS, if you want to implement a UNNotificationServiceExtension, adding a new Notification Service Extension iOS project is necessary.
I'm not sure if you are using VS for Mac or VS2022(Windows), MAUI tooling is still under preview, some file templates are not ready yet, we can't add Notification Service Extension by VS for Mac.

You could refer to the mentioned doc, add Notification Service Extension in your MAUI Solution by VS 2022(Windows) for testing, and tell me the test result, thanks for your collaboration.

In addition, you ask another question : "or new net6-android framework ?"

For Android, you could check Xamarin.GooglePlayServices.Base and Xamarin.Firebase.Messaging libraries, it also works on a .NET MAUI app.
Peter Bozovic 1 Reputation point

2022-06-15T11:22:06.44+00:00

Hello,

Yes, I have been able to successfully push iOS notifications to my app without the Service Extension, but the message is displayed encrypted.

I'm using VS 2022 on Windows with remote MAC for building, and testing on remote physical device plugged into mac.

I tried to add new iOS Notifications Service Extension project from VS 2022 Preview 1.1 and I'm just getting empty folder :(
I also tried to adapt the project from the monkey sample:
https://github.com/xamarin/ios-samples/tree/main/ios10/MonkeyNotify
But when I try to load this project into latest VS, it can't find Xamarin.iOS.AppExtension.CSharp.targets so it doesn't load the project :(
And even if I could load the project, it looks like I have to reference it into my MAUI project, and since one is Xamarin.iOS and the other is net6-ios it probably wouldn't work anyway ?

Sorry about the net6-android, I ment to say net6-ios :)
With alot of struggle, I was able to setup the Android correctly, but iOS is blocking because of the Service Extension :(

Really missing the documentation on how to implement push notifications on Maui, and most of the libraries are not yet up to date so can't really use anything and having to wire everything manually ...
Wei Wen 1,126 Reputation points

2025-03-16T21:08:24.6266667+00:00

Did you find a solution?

1 answer

Your answer

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-06-15T10:00:04.67+00:00

May I ask If you can get notification in your MAUI project without iOS Notification Service Extension? I mean that if your APNs cer and profile has been set correctly, and you have set <key>aps-environment</key> in your Entitlements.plist file and you can receive the remote notification.

In Xamarin.iOS, if you want to implement a UNNotificationServiceExtension, adding a new Notification Service Extension iOS project is necessary.
I'm not sure if you are using VS for Mac or VS2022(Windows), MAUI tooling is still under preview, some file templates are not ready yet, we can't add Notification Service Extension by VS for Mac.

You could refer to the mentioned doc, add Notification Service Extension in your MAUI Solution by VS 2022(Windows) for testing, and tell me the test result, thanks for your collaboration.

In addition, you ask another question : "or new net6-android framework ?"

For Android, you could check Xamarin.GooglePlayServices.Base and Xamarin.Firebase.Messaging libraries, it also works on a .NET MAUI app.
Peter Bozovic 1 Reputation point

2022-06-15T11:22:06.44+00:00

Hello,

Yes, I have been able to successfully push iOS notifications to my app without the Service Extension, but the message is displayed encrypted.

I'm using VS 2022 on Windows with remote MAC for building, and testing on remote physical device plugged into mac.

I tried to add new iOS Notifications Service Extension project from VS 2022 Preview 1.1 and I'm just getting empty folder :(
I also tried to adapt the project from the monkey sample:
https://github.com/xamarin/ios-samples/tree/main/ios10/MonkeyNotify
But when I try to load this project into latest VS, it can't find Xamarin.iOS.AppExtension.CSharp.targets so it doesn't load the project :(
And even if I could load the project, it looks like I have to reference it into my MAUI project, and since one is Xamarin.iOS and the other is net6-ios it probably wouldn't work anyway ?

Sorry about the net6-android, I ment to say net6-ios :)
With alot of struggle, I was able to setup the Android correctly, but iOS is blocking because of the Service Extension :(

Really missing the documentation on how to implement push notifications on Maui, and most of the libraries are not yet up to date so can't really use anything and having to wire everything manually ...
Wei Wen 1,126 Reputation points

2025-03-16T21:08:24.6266667+00:00

Did you find a solution?

Answer 1

Hello @Peter Bozovic ,

You can refer to the above Xamarin guide doc to implement a service extension in MAUI project.

Use the latest Visual Studio 2022 Preview and create a .net MAUI app.
Follow the doc to implement a Notification Service Extension, the UserNotificationCenterDelegate should be under the Platforms/iOS folder in MAUI ( it's under iOS project in Xamarin)
Set the MAUI project as your main project, and add the extension project as a reference to within the MAIN MAUI app: right-click the solution, click "Set as Startup Project", then right-click "Dependencies", click "Add Project Reference" and check the Notification Service Extension you created.

If you have any other issues, please feel free to let me know.

Best Regards,
Wenyan Zhang

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Wei Wen 1,126 Reputation points

2025-03-16T21:08:01.8733333+00:00

I use Visual Studio Code. I can receive push notifications, but even though I manually added rich push notification service .cs file and Info.plist file in a folder I created inside Platforms/iOS, I couldn't get push notifications with media like images. My question is if I use Visual Studio Code, how can I make rich push notification extension service work?
I cannot use Visual Studio for Mac since it is no longer supported.

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How to use Service Extension for UNNotificationServiceExtension with MAUI ?

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