text: import React, { Component } from 'react';
  import { createBottomTabNavigator, createAppContainer  } from 'react-navigation';
  
  import ConversasStack from './ConversasStack';
  import ContatoList from './ContatoList';
  import Config from './Config';
  
  
  const Navegador = createBottomTabNavigator({
    //ConversasStack:ConversasStack,
    ConversasStack:{
      screen: ConversasStack,
      navigationOptions: () => ({
        title: 'Conversas',
        header:null,
        headerMode: 'none'
        
      })
    },
    ContatoList:ContatoList,
    Config:Config
  
  },{
   
      animationEnabled:false,
      swipeEnabled:false,
      tabBarOptions: {
        activeTintColor: '#e91e63',
        labelStyle: {
          fontSize: 22,
        },
        style: {
          //backgroundColor: 'blue',
        },
      }
      
  });
  
  
  const container = createAppContainer(Navegador);
  export default container; 
  
  
  
  /* muda propriedades do tab
  navigationOptions: () => ({
    title: 'Maluco',
    header:null,
    //Opções do tab
    tabBarOptions: {
      activeTintColor: '#e91e63',
      labelStyle: {
        fontSize: 22,
      },
      style: {
        //backgroundColor: 'blue',
      },
    }
    
  }),
  
   */
  
  