React ネイティブ ブリッジング Android を実装する方法とその具体的な手順は何ですか?

public class AnExampleReactPackage implements ReactPackage {
  @Override
  public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
    return Collections.emptyList();
  }
  @Override
  public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
    List<NativeModule> modules = new ArrayList<>();

    modules.add(new NaviActivity(reactContext));
    return modules;
  }
}

@ReactMethod
  public void showFengMap(String mapID){
    Activity currentActivity = getCurrentActivity();
    Intent intent = new Intent(currentActivity, 页面名.class);
    currentActivity.startActivity(intent);
  }

@Override
  protected List<ReactPackage> getPackages() {
   return Arrays.<ReactPackage>asList(
     new MainReactPackage(),
      new AnExampleReactPackage()
   );
  }

import { NativeModules } from 'react-native';

export default NativeModules.NaviActivity;

CommonAndroidUntils.show();