React Navigation with paths

App.js

import React from "react";
import { createStackNavigator } from "react-navigation";
import { createAppContainer } from 'react-navigation';

import ContentWrappersScreen from "../features/mediaFeatures/contentWrapper/screens/ContentWrappersScreen";
import MediaItemsScreen from "../features/mediaFeatures/mediaItem/screens/MediaItemsScreen";
import MediaItemPdfScreen from "../features/mediaFeatures/mediaItem/screens/MediaItemPdfScreen";
import MediaItemAudioScreen from "../features/mediaFeatures/mediaItem/screens/MediaItemAudioScreen";
import MediaItemVideoScreen from "../features/mediaFeatures/mediaItem/screens/MediaItemVideoScreen";
import MediaItemsFilterScreen from "../features/mediaFeatures/mediaItem/screens/MediaItemsFilterScreen";
import NavigationService from './NavigationService';
import { Linking } from 'expo';
import { Root } from 'native-base';

const AppNavigator = createStackNavigator(
  {
    ContentWrappersScreen: { screen: ContentWrappersScreen, path: 'contentWrappers/' },
    MediaItemsScreen: { screen: MediaItemsScreen, path: 'mediaItems/:parentEntity/:parentId' },
    MediaItemPdfScreen: { screen: MediaItemPdfScreen, path: 'mediaItemPdf/:id' },
    MediaItemAudioScreen: { screen: MediaItemAudioScreen, path: 'mediaItemAudio/:id' },
    MediaItemVideoScreen: { screen: MediaItemVideoScreen, path: 'mediaItemVideo/:id' },
    MediaItemsFilterScreen: { screen: MediaItemsFilterScreen }
  },
  {
    index: 0,
    initialRouteName: "ContentWrappersScreen",
    headerMode: "none"
  }
);

const prefix = Expo.Linking.makeUrl('/');
const AppContainer = createAppContainer(AppNavigator);

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