flutter pub add universal_platform根據套件公開資料產生的選型評估，僅供參考。
universal_platform 套件提供了一個跨平台的替代方案，用於 Dart 的 Platform 類，可讓 Web、行動與桌面環境之間實現一致的平台檢測。它允許開發者在業務邏輯層（例如視圖與模型）中執行平台檢查，而不需依賴特定平台的實作。這確保了無論目標執行環境為何，皆能保持可靠的行為，簡化了需要根據底層平台進行調整的程式碼。
以下為關聯原始碼儲存庫的 README 原文快照，最新內容請造訪原始碼儲存庫。
Currently, if you include the dart.io.Platform anywhere in your code, your app will throw the following error on Web:
Unsupported operation: Platform._operatingSystem
With this plugin you can perform platform detection on all platforms, including Web, without errors.
dependencies:
universal_platform: ^1.0.0+1
Remove any usages of dart.io.Platform, and replace with this:
import 'package:universal_platform/universal_platform.dart';
This acts as a drop-in replacement for dart.io.Platform, with a different name for improved clarity.
//This will explode on Web
bool isIos = Platform.isIOS;
//This will not :)
bool isIos = UniversalPlatform.isIOS;
bool isWeb = UniversalPlatform.isWeb;
If you encounter any problems feel open an issue. If you feel the library is missing a feature, please raise a ticket on Github and we'll look into it. Pull request are also welcome.
MIT License