I had an idea of an intelligent extract icon and application name from apk-files.
But the name and the path are stored in resources.arsc - resource file in apk-file.
I looked through code that compiles this with aapt .. I looked at the implementation of the parser in apktool .. and I understood that I didn't want to realize that.
So if anyone knows of ready solutions for Qt/C++ or want to help - you are welcome.