Custom Notification Sound

I'm using this Mobile Notification Package for my iOS project.
I want to set a notification with custom sound to the user but it doesn't seem like it allows me to set the notification sound.
Is there other way to send notification with custom sound?

 

the package's link:
docs.unity3d.com/Packages/com.unity.mobile.notifications@1.0/manual/index.html

 

You can specify the sound file when you call the iOS API, but it does require you to write your own iOS plugin. It is not something you can easily add to the Unity’s official package.

 

I opened their package files there is actually a TODO to add a way to specify custom sound.

 

That's what I expected. I think they are still working on how to intuitively provide a sound file in C# player scripts.

 

I can edit the package's files in the Xcode Project to make custom notification sound. But every time I rebuild the project my edits are all gone. Is there a way to change the package content in Unity?

 

Check this out :
https://forum.unity.com/threads/is-it-possible-to-edit-tmp-unity-package-source-code.571420/

You can copy the package, and edit it's content

 

did you made it?

 

It's shipped so long ago. iirc I just did it in Xcode.