flutter-managing-state

To manage shared UI state across Flutter widgets, you can use the MVVM architecture with Provider for dependency injection. This approach enforces unidirectional data flow and a single source of truth, ensuring predictable data synchronization and testable business logic across screens.

Separating business logic from UI in Flutter is best achieved using the MVVM architecture. By utilizing ChangeNotifier with the provider package, you create ViewModels that handle data operations, keeping your widgets purely reactive and your codebase highly testable.

Implementing MVVM with Provider in Flutter involves creating ViewModels using ChangeNotifier to expose state, injecting them via Provider for dependency management, and binding widgets reactively to enforce unidirectional data flow and a single source of truth.

Yes, Flutter Provider with ChangeNotifier works for global user sessions and preferences. By applying the repository pattern and a single source of truth, it centralizes data to ensure consistency and predictable data flow across multiple screens.

Duplicated logic across Flutter screens happens when state is managed locally without a shared structure. Adopting MVVM with Provider centralizes state management, using a single source of truth and reactive ChangeNotifier to eliminate redundancy and sync UI efficiently.