.NET MAUI Native Interop for non-swift iOS code

[cwraks]

Hi. I've been struggling to create native bindings for the BlufiLibrary written by Espressif for their C3 and C5 range of chips. Their code repository is here

What I did was to create a .h and .m file with just a single class (AdoozyWrappedBlufiClient) that exposes just 3 methods that use basic NSString type parameters and method signatures via an XCode Framework project.
I created the ApiDefinitions.cs file using Objective Sharpie and tried as best as possible to follow the official community .NET MAUI Native Interop guide (which has a template one can use for things like this) here but still no luck due to an error that just doesn't seem to go away even though I am building with a physical iPhone connected to the Mac through Visual Studio 2022.

The error can be seen below:

Any help with this will be greatly appreciated, either with some quick code examples of what to do, or possible solid steps to a definite solution no matter how painstaking it might be.

I know I haven't given any concrete code examples but I'm doing that on purpose so that the standard template from the community .NET MAUI Native Interop guide can be used as a reference for whatever solution is given.

Many thanks in advance.

[ghost]

Does this help in anyway?

• https://youtu.be/BpE6aV3lHC0
• https://stackoverflow.com/questions/79334547/net-maui-slim-bindings-native-library-interop
• https://github.com/CommunityToolkit/Maui.NativeLibraryInterop/tree/main
• AppStore rejects embedded frameworks CommunityToolkit/Maui.NativeLibraryInterop#43 (comment)
• https://www.igniscor.com/post/bind-native-libraries-on-maui

[cwraks]

Thanks. I'm still painstakingly going through each link and paying close attention and trying things out, but I just realized that even the official community .NET MAUI Native Interop guide found here gives me the very same issue when I build it on a windows machine with Visual Studio 2022 connected to a Mac with a physical iPhone. Error is shown below. Are you able to successfully build and run the official template solution using this setup?

[cwraks]

Ok so the reason I marked ghost's response as an answer is because the links ghost posted eventually lead me down a rabbit hole to finally land on a link that made my maui project to build successfully. The real direct solution is here https://medium.com/@warkiringoda/creating-a-net-binding-for-a-native-ios-objective-c-library-for-use-in-maui-ec88b2501eb1

[jingliancui]

I think this is about the binding stuff, you just search or ask ai to step forward.