There is an alternative to Android Studio tools for creating an APK [closed]

I was trying to compile a .so file with arm-gnu-toolchain-15.3.rel1-mingw-w64-x86_64-aarch64-none-elf like this: aarch64-none-elf-g++.exe -fPIC -shared a.cpp -o liba.so The .so file was generated. But I can't test it b