Using a library as a prebuilt library

The previous recipe described how to build an existing library with its own build system. We obtained a compiled static library libbmp.a of the open source libbmp library. This recipe will discuss how to use a prebuilt library.

How to do it...

The following steps build an Android NDK application which uses prebuilt library. Note that the sample project is based on what we have done in the previous recipe. If you have not gone through previous recipe, you should do it now.

1. Open the PortingWithBuildSystem project that you created in previous recipe. Add a Java file MainActivity.java under the cookbook.chapter8.portingwithbuildsystem package. This Java file simply loads the shared library PortingWithBuildSystem, and calls the native method naCreateABmp.

2. Add the mylog.h and PortingWithBuildSystem.c files under it. PortingWithBuildSystem.c implements the native method naCreateABmp.

3. Create an Android.mk file under the jni folder to compile PortingWithBuildSystem...