Porting a library as a shared library module with the Android NDK build system

This recipe will discuss how to port an existing library as a shared library with the Android NDK build system. We will use the open source libbmp library as an example.

Getting ready

Readers are recommended to read the Building an Android NDK application at the command line recipe in Chapter 3, Build and Debug NDK Applications, before going through this one.

How to do it...

The following steps describe how to create our sample Android project that demonstrates porting the libbmp library as a shared library:

1. Create an Android application named PortingShared with native support. Set the package name as cookbook.chapter8.portingshared. Please refer to the Loading native libraries and registering native methods recipe of Chapter 2, Java Native Interface, if you want more detailed instructions.

2. Add a Java file MainActivity.java under the cookbook.chapter8.portingshared package. This Java file simply loads the shared library...