Flutter 根据登录状态显示不同的初始界面

先贴代码

 

 

import 'package:flutter/material.dart';

import 'package:flutter/services.dart';

import 'package:shared_preferences/shared_preferences.dart';

import 'package:ttlock/routes/routes.dart';

 

void main() {

  WidgetsFlutterBinding.ensureInitialized();

// 强制竖屏

  Future<dynamic> future = Future(() async {

    SharedPreferences prefs = await SharedPreferences.getInstance();

    return prefs.getInt('isLogin');

  });

  future.then((value) {

    if (value == 1) {

      print('当前登录状态位$value');

      SystemChrome.setPrefe