Can a MAUI iOS binding library be used to wrap a C++ iOS fat library (.a) for mobile platform development?

Question

I am trying to convert my Xamarin.Forms apps to MAUI. My apps rely on C/C++ library code provided by government agencies (USNO and NOAA). For Xamarin.Forms I was able create NuGet packages for each library using these instructions https://learn.microsoft.com/en-us/xamarin/cross-platform/cpp/. While these packages still work for Android, under iOS I get a dllnotfound exception. I have tried to directly pull the fat library (.a) created in the above procedure into my MAUI app, but no love. I also tried to pull it into a multi-platform class library with similar results.

I am now thinking that an iOS binding library might be the right construct. The instructions provided in the default ApiDefinition.cs file, however, are specific to a library created with Objective-C.

Can an iOS binding library be used with a fat library created with C++? If so, what supporting files are needed? I can successfully build it with no supporting files and get my library wrapped in a DLL. With this, however, the C# references (DLL Import, ect.) I would typically use to access the functions in the DLL still do not work.

Answer 1

see this thread:

https://learn.microsoft.com/en-us/answers/questions/1190326/how-to-use-a-(-a)-library-in-a-net-maui-ios-projec