flutter-architecting-apps

Structure your Flutter app using a strict UI-Logic-Data layered architecture to separate UI, business logic, and data layers. This enforces separation of concerns, a single source of truth, and unidirectional data flow across features.

Refactor your Flutter app by applying a 3-layer architecture to improve maintainability and testability. This clarifies boundaries between UI, domain logic, and data handling, centralizing state and data flow.

Yes, you can use this layered Flutter architecture for simple CRUD apps. It supports an optional Use Case layer for complex business rules while keeping a straightforward path for standard operations.

Set up a single source of truth in Flutter by centralizing data handling within the Data layer and enforcing unidirectional data flow. This approach keeps state consistent across the UI and domain layers.

Introduce a Use Case or Interactor layer in your Flutter application when handling complex business rules. This optional layer sits within the domain logic to keep standard CRUD operations simple.

Your Flutter app becomes hard to maintain because tangled UI and business logic break separation of concerns. Enforcing a strict UI-Logic-Data structure modularizes features and clarifies responsibilities.