text: import React, { Component } from "react";
  
  import { createStackNavigator } from "react-navigation";
  import SplashScreen from "./SplashScreen";
  import LoginScreen from "./LoginScreen";
  import SetupScreen from "./SetupScreen";
  import TourScreen from "./TourScreen";
  import LoadingScreen from "./LoadingScreen";
  import MainTab from "./MainTab";
  
  const LoginStack = createStackNavigator(
    {
      Splash: {
        screen: SplashScreen
      },
      Login: {
        screen: LoginScreen
      },
      Setup: {
        screen: SetupScreen
      },
      Tour: {
        screen: TourScreen
      },
      Loading: {
        screen: LoadingScreen
      },
      Main: {
        screen: MainTab
      }
    },
    {
      initialRouteName: "Splash",
      headerMode: "none"
    }
  );
  export default LoginStack;
  