// lib/utils/platform_utils.dart import 'package:flutter/foundation.dart' show kIsWeb, defaultTargetPlatform, TargetPlatform; /// 简单的跨平台判断工具,避免在 web 上引用 dart:io class PlatformUtils { /// 是否在浏览器 static bool get isWeb => kIsWeb; /// 是否为 iOS(注意:在 web 上会返回 false) static bool get isIOS => !kIsWeb && defaultTargetPlatform == TargetPlatform.iOS; /// 是否为 Android(在 web 上会返回 false) static bool get isAndroid => !kIsWeb && defaultTargetPlatform == TargetPlatform.android; /// 返回一个简单的操作系统标识字符串(web 会返回 'web') static String get operatingSystem { if (kIsWeb) return 'web'; switch (defaultTargetPlatform) { case TargetPlatform.android: return 'android'; case TargetPlatform.iOS: return 'ios'; case TargetPlatform.macOS: return 'macos'; case TargetPlatform.linux: return 'linux'; case TargetPlatform.windows: return 'windows'; case TargetPlatform.fuchsia: return 'fuchsia'; } } }