The Responsible Repository Pattern

In the ever-evolving landscape of mobile application development, achieving a clean and maintainable architecture is a constant pursuit. As developers, we strive to separate the concerns of the user interface (UI) state from the actual business logic that makes our applications functional. As we have seen in Chapter 4, we adopt state management solutions such as bloc, cubit, ViewModel, or Provider to efficiently manage the UI state, bringing clarity and order to our code base.

However, as we dive deeper into the complexities of building robust Flutter apps, we inevitably encounter a new set of challenges. The process of segregating the UI state from business logic can sometimes leave us grappling with dilemmas such as duplicating domain logic, wrestling with data sources, and battling inconsistent behavior within our applications. These issues can quickly spiral out of control, leading to code base chaos and maintenance nightmares.

In this chapter...