我正在尝试在我的项目中创建一个初始屏幕，但此代码不起作用. 它只是永远显示初始屏幕

Question

我正在尝试在我的项目中创建一个初始屏幕，但此代码不起作用。 它只是永远显示初始屏幕。 它不会切换到主屏幕。有什么帮助吗？(我想创建一个以初始屏幕开头的应用，但我不希望此初始屏幕是照片(

import 'dart:async';
void main() {
runApp( splash(),);
}
// ignore: camel_case_types
class splash extends StatefulWidget {
@override
_splashState createState() => _splashState();
}
// ignore: camel_case_types
class _splashState extends State<splash> {
@override
void initState() {
super.initState();
Timer(
Duration(seconds: 5),
() => Navigator.of(context).pushReplacement(MaterialPageRoute(
builder: (BuildContext context) => home(),),),);
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Center(child: Text("Splash Screen"),)
),
);
}
}
class home extends StatefulWidget {
@override
_homeState createState() => _homeState();
}
// ignore: camel_case_types
class _homeState extends State<home> {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text("Home"),
),
),
);
}
}```

Answer 1

将 MaterialApp 与启动功能分开

import 'dart:async';
import 'package:flutter/material.dart';
void main() {
runApp(MyApp(),);
}
class Splash extends StatefulWidget {
@override
_SplashState createState() => _SplashState();
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Splash(),
);
}
}
class _SplashState extends State<Splash> {
@override
void initState() {
super.initState();
Timer(
Duration(seconds: 5),
() => Navigator.of(context).pushReplacement(MaterialPageRoute(
builder: (BuildContext context) => Home(),),),);
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(child: Text("Splash Screen"),)
);
}
}

class Home extends StatefulWidget {
@override
_HomeState createState() => _HomeState();
}
class _HomeState extends State<Home> {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text("Home"),
),
),
);
}
}