flutter 2

import 'package:flutter/material.dart';

void main() => runApp(myapp());

class myapp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'my app name',
      theme: ThemeData(primarySwatch: Colors.blue),
    
      home: KeepAlive(),
  }
  }
}