--save react-navigation
import React, { Component } from 'react';
import {
AppRegistry,
StyleSheet...,
Text,
View,
Image
} from 'react-native';
import {StackNavigator, TabNavigator} from 'react-navigation...// headerStyle:{
// backgroundColor:'#4ECBFC'
// }, // 设置导航条的样式。...icon, 需要设置为 true 才会显示
// indicatorStyle: {
// height: 0
// }, // android 中TabBar...Text,
View
} from 'react-native';
import WYMain from '.