Проверка

import 'dart:async';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/material.dart';
import 'package:plantual_1/scenes/home.dart';
import 'package:plantual_1/ui/auth/signInScreen.dart';

class splashServices{
  void isLogin(BuildContext context){

    final auth = FirebaseAuth.instance;

    final user = auth.currentUser;

    if(user != null){
      Timer(const Duration(seconds: 2),
              () => Navigator.push(context, MaterialPageRoute(builder: (context) => Home())));
    }else{
      Timer(const Duration(seconds: 2),
              () => Navigator.push(context, MaterialPageRoute(builder: (context) => signInScreen())));
    }
  }
}