Flutter -如何创建一个框架，在这个框架中，我可以使用Debug和Prod版本，其中调试版本可以选择测试环境

flutter create my_app

const bool isDebug = true;

void main() {
  if (isDebug) {
    runApp(DebugApp());
  } else {
    runApp(ProdApp());
  }
}

import 'package:flutter/material.dart';

class DebugApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Debug App',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: DebugHomePage(),
    );
  }
}

class DebugHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Debug Home'),
      ),
      body: Center(
        child: Text('Debug Version'),
      ),
    );
  }
}

import 'package:flutter/material.dart';

class ProdApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Prod App',
      theme: ThemeData(
        primarySwatch: Colors.green,
      ),
      home: ProdHomePage(),
    );
  }
}

class ProdHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Prod Home'),
      ),
      body: Center(
        child: Text('Prod Version'),
      ),
    );
  }
}

flutter run --debug

flutter run --release