App.js

/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 * @flow
 */

import React, { Component } from 'react';

import LoginScreen from './screen/login'
import Main from './screen/main/drawer'

import {createStore} from 'redux'
import {Provider} from 'react-redux'
import reducer from './reducer/reducerMain'

import {width,height} from './supportScreen'
import {
  StackNavigator,
} from 'react-navigation';

import {
  Platform,TextInput,TouchableOpacity,
  StyleSheet,
  Text,Image,
  View
} from 'react-native';

const Navigator = StackNavigator({
  Login: {
    screen: LoginScreen,
    navigationOptions: ({navigation}) => ({
      header: null,
      gesturesEnabled: false,
    })
  },
  Main: {screen: Main,
    navigationOptions: ({navigation}) => ({
      header: null,
      gesturesEnabled: false,
    }),
  },
});
class App extends Component {
  constructor(props) {
    super(props)
  }
  render() {
    return(
      <Provider store={createStore(reducer)}>
        <Navigator/>
      </Provider>
    )
  }
}

export default App;