ReactNative with RNN and Image picker

MainApplication.java

package com.sakana;

import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.react.shell.MainReactPackage;
import com.facebook.soloader.SoLoader;
import com.imagepicker.ImagePickerPackage;
import com.oblador.vectoricons.VectorIconsPackage;
import com.reactnativenavigation.NavigationApplication;

import java.util.Arrays;
import java.util.List;

import javax.annotation.Nullable;

public class MainApplication extends NavigationApplication {

  private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
    @Override
    public boolean getUseDeveloperSupport() {
      return BuildConfig.DEBUG;
    }

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

  @Override
  public ReactNativeHost getReactNativeHost() {
    return mReactNativeHost;
  }

  @Override
  public void onCreate() {
    super.onCreate();
    SoLoader.init(this, /* native exopackage */ false);
  }

  @Override
  public boolean isDebug() {
    return BuildConfig.DEBUG;
  }

  @Nullable
  @Override
  public List<ReactPackage> createAdditionalReactPackages() {
    return Arrays.<ReactPackage>asList(
       // Needs to be imported here as well.
       new ImagePickerPackage()
    );
  }

  @Override
  public String getJSMainModuleName() {
    return "index";
  }

}