Programming with the zlib compression library in Android NDK

zlib is a widely-used, lossless data compression library, which is available for Android 1.5 system images or higher. This recipe discusses the basic usage of the zlib functions.

Getting ready...

Readers are expected to know how to create an Android NDK project. We can refer to the Writing a Hello NDK program recipe of Chapter 1, Hello NDK for detailed instructions.

How to do it...

The following steps describe how to create a simple Android application which demonstrates the usage of zlib library:

1. Create an Android application named ZlibDemo. Set the package name as cookbook.chapter7.zlibdemo. Refer to the Loading native libraries and registering native methods recipe of Chapter 2, Java Native Interface for more detailed instructions.

2. Right-click on the project ZlibDemo, select Android Tools | Add Native Support.

3. Add a Java file named MainActivity.java in the cookbook.chapter7.zlibdemo package. The MainActivity.java file loads the ZlibDemo...