React Native Cookbook - Second Edition

How it works...

This recipe covers the foundation for much of what we'll be doing with adding native Android modules in future recipes. All native module classes need to extend ReactContextBaseJavaModule, implement the constructor, and define the getName method. All methods that should be exposed to the React Native layer need to have the @ReactMethod annotation. Creating a React Native Android native module has more overhead as compared with iOS, since you have to also wrap your module in a class that implements ReactPackage (in this recipe, that's the HelloPackage module), and register the package with the React Native project. This is done in steps 7 and 8.

In the JavaScript portion of the recipe, the greetUser function is executed when ...