There are many my favorite lib which aren't available or outdated for b4a. (like this one)
So is there anyway I can use Xamarin projects or libraries in b4a ?
Any workaround or any method ?
I 100% agree to you in this regard. Xamarin is simply a shit. It embeds all dlls into apk.
But the problem is that some people have already did projects in xamarin. So I wanted to utilize their efforts and take their fruits of work.
May be b4a supports xxx.so file. Is that so ? Because this file is so important in any apk. Both old and modern use this type of file.