My Application is showing blank white canvas - flutter

Question

#Problem#
Here is my code it is a simple app for practising provider package but when I run it a blank
canvas shows up.
#What I want from it#
Can anyone tell me the reason why nothing is showing up on screen? I have tried creating a fresh project and running it still didn't work.
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
void main() => const MyApp();
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return ChangeNotifierProvider<Data>(
create: (context) => Data(),
child: MaterialApp(
theme: ThemeData.dark(),
home: Scaffold(
appBar: AppBar(
title: const MyText(),
),
body: const Level1(),
),
),
);
}
}
class Level1 extends StatelessWidget {
const Level1({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return const Level2();
}
}
class Level2 extends StatelessWidget {
const Level2({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return Column(
children: const [
MyTextField(),
Level3(),
],
);
}
}
class Level3 extends StatelessWidget {
const Level3({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return Text(Provider.of<Data>(context).data);
}
}

Answer 1

There is a tiny bug in your code... line 4
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
//void main() => const MyApp();
void main() => runApp(const MyApp()); // Update this line.
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
...
In flutter land, the runApp function is responsible for inflating the root widget.
Update your main function to call the runApp function and pass in the root widget, MyApp in this case. That should solve the issue.