良好地架构 Flutter 应用程序涉及关注点分离(UI、业务逻辑、数据)、选择状态管理方法以及组织代码以实现可维护性、可测试性和可扩展性。随着应用程序增长,良好的架构变得至关重要。
关注点分离(分层)
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Separate the app into LAYERS with clear responsibilities:
PRESENTATION (UI) → widgets/screens; display + user interaction (no business logic)
BUSINESS LOGIC → state management, use cases, app logic (independent of UI)
DATA → repositories, data sources (APIs, local DB), models
→ Each layer has ONE responsibility; depends only on lower layers → maintainable, testable.
