Splashscreem on Flutter - Error with Bottom Bar

Question

Hey, how you doing? So, I can’t make the splash screen work on the main where Curved Bottom is, because both of them, so the following doc is added to the home: of main.dart. When I add the splash button it stops working and so on for both. How could I make the splash work even with Curved Bottom on my main?

That’s my main code along with the button I added the two codes in main, but I can’t call them

 import 'package:curved_navigation_bar/curved_navigation_bar.dart';
import 'package:flutter/material.dart';
import 'package:flutter/painting.dart';
import 'package:splashscreen/splashscreen.dart';
import 'Anonymos.dart';
import 'Homepage.dart';

void main() => runApp(MaterialApp(home: BottomNavBar()));

class BottomNavBar extends StatefulWidget {

  BottomNavBar({Key key,})
      : super(key: key);
  @override
  _BottomNavBarState createState() => _BottomNavBarState();
}

class _BottomNavBarState extends State<BottomNavBar> {
  int _pageIndex = 0;
  GlobalKey _bottomNavigationKey = GlobalKey();

  List pages = [
    MyRoute(
      iconData: Icons.announcement,
      page: Homepage(),
    ),
    MyRoute(
      iconData: Icons.email,
      page: MensagemChat(),
    ),
    MyRoute(
      iconData: Icons.account_circle_outlined,
      page: MensagemChatAnonimo(),
    )
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      bottomNavigationBar: CurvedNavigationBar(
        key: _bottomNavigationKey,
        index: 0,
        height: 50.0,
        items: pages
            .map((p) => Icon(
          p.iconData,
          size: 30,
        ))
            .toList(),
        color: Colors.indigo[50],
        buttonBackgroundColor: Colors.white,
        backgroundColor: Colors.blueAccent,
        animationCurve: Curves.easeInOut,
        animationDuration: Duration(milliseconds: 600),
        onTap: (index) {
          setState(() {
            _pageIndex = index;
          });
        },
      ),
      backgroundColor: Colors.blueAccent,
      body: pages[_pageIndex].page,
    );
  }
}

class MyRoute {
  final IconData iconData;
  final Widget page;

  MyRoute({this.iconData, this.page});
}

class splashScreen extends StatefulWidget {

  splashScreen({Key key, this.title}) : super(key: key);

  final String title;


  @override
  _splashScreenState createState() => _splashScreenState();
}

class _splashScreenState extends State<splashScreen> {
  @override
  Widget build(BuildContext context) {
    return _introScreen();
  }
}

Widget _introScreen() {
  return Stack(
    children: <Widget>[
      SplashScreen(
        seconds: 5,
        gradientBackground: LinearGradient(
          begin: Alignment.topRight,
          end: Alignment.topCenter,
          colors: [
            Color(0xff2474fd),
            Color(0xff2882f1)
          ],
        ),
        navigateAfterSeconds: Homepage(),
        loadingText: Text('Carregando',
          style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600,),),
        loaderColor: Colors.redAccent,
        styleTextUnderTheLoader: const TextStyle(
            decorationStyle: TextDecorationStyle.wavy),
      ),
      Container(
        decoration: BoxDecoration(
          image: DecorationImage(
            image: AssetImage("Assets/image/Splas.png"),
            fit: BoxFit.contain,
          ),
        ),
      ),

    ],
  );
}