这是一个点击切换的demo

先看效果

然后看实现的代码

import React from 'react';import { Text, View } from 'react-native';import { createBottomTabNavigator, createAppContainer, FlatList } from 'react-navigation';const data = new Array(30).fill(0);//homeclass HomeScreen extends React.Component {  render() {    return (      
            
      
      
       Home - {index}
      }          contentContainerStyle={
   { padding: 10 }}        />      
     
        );  }}//settingsclass SettingsScreen extends React.Component {  render() {    return (      
            
     
       (            
      
       Settings - {index}
                )}          contentContainerStyle={
   { padding: 10 }}        />      
     
        );  }}const TabNavigator = createBottomTabNavigator({  Home: { screen: HomeScreen },  Settings: { screen: SettingsScreen },});export default createAppContainer(TabNavigator);

demo自：