@Override
    protected ReactRootView createRootView() {
      ReactRootView reactRootView = new ReactRootView(getContext());
      // If you opted-in for the New Architecture, we enable the Fabric Renderer.
      reactRootView.setIsFabric(BuildConfig.IS_NEW_ARCHITECTURE_ENABLED);
      return reactRootView;
    }
Returns the instance of the {@link ReactActivityDelegate}. There the RootView is created and
you can specify the renderer you wish to use - the new renderer (Fabric) or the old renderer
(Paper).
template/android/app/src/main/java/com/helloworld/MainActivity.java