Intro splash Home router runApp

main.dart

import 'package:flutter/material.dart';
import 'package:gohype/home/home.dart';
import 'package:gohype/home/intro_screen.dart' ;
import 'package:gohype/signin/signinpage.dart';

import 'package:logger/logger.dart';

import 'home/intro_screen.dart';

import 'package:shared_preferences/shared_preferences.dart';



void main() async {


  String mLoginInfo;
  String introflag;

  var logger = Logger();
  // Set default home.
  Widget _defaultHome = new IntroScreen();


  final prefs = await SharedPreferences.getInstance();
  // read
  introflag = prefs.getString("INTRO_FLAG") ?? '';


  mLoginInfo = prefs.getString("LOGIN_INFO_PHONE") ?? '';

  if(mLoginInfo!="" && mLoginInfo!=null)
  {
    _defaultHome= new Home();

    logger.d("inside  home");
  }
  else
  {


    logger.d("inside not logged in");

    if(introflag!=null && introflag!="") {
      _defaultHome = new SignInUI();
  
      logger.d("1SignInUI");
    }
    else{
      _defaultHome=new IntroScreen();
      logger.d("1IntroScreen");
    }


  }


  // Run app!
  runApp(new MaterialApp(
    title: 'App',
    home: _defaultHome,
    routes: <String, WidgetBuilder>{
      // Set routes for using the Navigator.
      '/home': (BuildContext context) => new  MyApp(),
      '/login': (BuildContext context) => new SignInUI(),
      '/intro': (BuildContext context) => new IntroScreen(),

    },
  ));
}