How to using lib*.so that was built in AOSP using mm command

Question

I have c/c++ source code that was built as shared library using AOSP environment. (Using mm command). That has 4 function: add, sub, multiple, divide. Now, I want to call these function from Android Application that uses UI. It means that I want to use native library in Android Application. So my question is do I call these functions directly from Android Application? and if so, How I can do that ?

Thank A lot.

Answer 1

Android Applications are written in Java, or Kotlin, or whatever language that compiles to DEX (the bytecode that runs in Android JVM). You need JNI layer to connect to your C++ library. Hopefully, your language provides native methods that are implemented via JNI.