rajsuvariya

public class SharedPreferencePackager implements ReactPackage {
    @Override
    public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
        List<NativeModule> modules = new ArrayList<>();

        modules.add(new SharedPreferenceModule(reactContext));

        return modules;
    }

rajsuvariya

public class SharedPreferenceModule extends ReactContextBaseJavaModule {

    Context mContext;
    public AppSharedPreferenceManager preferenceManager;

    public SharedPreferenceModule(ReactApplicationContext reactContext) {
        super(reactContext);
        mContext = reactContext;
        preferenceManager = new AppSharedPreferenceManager(new PreferencesHelper(reactContext));
    }