[Flutter]设置应用包名、名称、版本号、最低支持版本、Icon、启动页以及环境判断、平台判断和打包

在Flutter中，您可以通过修改pubspec.yaml文件来设置应用的包名、名称、版本号、最低支持版本、应用图标（icon）和启动页。以下是相关的配置示例：

name: my_app
description: A new Flutter application.
 
# The package name for your app. This must be unique on Pub.
# The package name is used as the prefix for all keys that are stored in Flutter's shared preferences.
# Must be replaced with your own app's package name.
package_name: com.example.my_app
 
version: 1.0.0+1
 
# The following defines the compatibility versions of your application.
# In this case, it's only compatible with versions higher than 1.0.0.
environment:
  sdk: ">=2.12.0 <3.0.0"
 
# The default assets used whenever the application is launched.
# Must be replaced with your own app's launch image.
assets:
  - assets/images/icon.png
 
# Specifies the application's icon.
# Must be replaced with your own app's icon.
flutter:
  app:
    name: 'My App'
    icon: assets/images/icon.png
 
# Specifies the background color that appears before the Flutter app is launched.
# Must be replaced with your own app's launch background color.
colors:
  background: "#FFFFFF"

对于环境判断，您可以在Dart代码中使用dart.vm.product来判断是否为生产环境，或者通过defaultTargetPlatform来判断当前运行平台。

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
 
void main() {
  runApp(MyApp());
}
 
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final isProduction = bool.fromEnvironment('dart.vm.product');
    final platform = defaultTargetPlatform;
 
    return MaterialApp(
      title: 'My App',
      home: Scaffold(
        appBar: AppBar(
          title: Text('My App'),
        ),
        body: Center(
          child: Text('Running in $platform.\nIs production: $isProduction'),
        ),
      ),
    );
  }
}

请根据您的实际情况替换相应的图片路径和文本信息。