Chapter 8. Adding Native Java Code

Until now, we have been creating our game by using only the programming language in which the Cocos2d-x game framework has been written (C++); nevertheless, the Android API written by Google is only available in the Java layer of the application. In this chapter, you will learn how to communicate our native C++ code with the higher end Java core by using the Java Native Interface (JNI) capabilities.

The following topics will be covered in this chapter:

• Understanding the Cocos2d-x structure for the Android platform

• Understanding the JNI capabilities

• Adding the Java code to the Cocos2d-x game

• Adding ads to the game by inserting the Java code