text: import React from 'react'
  import { StackNavigator } from 'react-navigation'
  import { Constants } from 'expo'
  import { Platform } from 'react-native'
  import  {SimpleLineIcons } from '@expo/vector-icons'
  import { blue, white } from '../../utils/colors'
  import  NewFlashCardScreen  from './views/NewFlashCardScreen'
  import  SideBarOpenButton from '../SideBarOpenButton'
  
  const NewDeckNavigator = StackNavigator({
    NewFlashCardScreen: {
      screen: NewFlashCardScreen,
      navigationOptions: ({ navigation, defaultHeader }) => ({
        ...defaultHeader,
        title: 'Desks',
        headerLeft: <SideBarOpenButton navigation={navigation}/>,
      })},
    },
    {
      navigationOptions: ({ navigation }) => ({
        headerMode: 'screen',
        headerStyle: {
          backgroundColor: blue,
        },
        headerTitleStyle: { color: white },
      }),
      cardStyle: {
        paddingTop: Platform.OS === 'ios' ? 0 : Constants.statusBarHeight
      }
    }
  )
  
  export default NewDeckNavigator