text: /**
   * Sample React Native App
   * https://github.com/facebook/react-native
   * @flow
   */
  import React, {
    PureComponent,
  } from 'react'
  
  import {
    StackNavigator,
  } from 'react-navigation'
  
  import Home from './Home'
  
  import Viewer from './Pdf'
  
  
  const Navigator = new StackNavigator({
    Home: {screen: Home},
    HomeDetail: {screen: Viewer},
  }, {initialRouteName: 'Home'})
  
  /**
   * App its Main Class
   * Main Application
   * Render Navigation
   */
  export default class App extends PureComponent {
    /**
     * @return {object} Navigator Element
     */
    render() {
      return <Navigator/>
    }
  }
  