Separate Business Logic and Presentation
The Flutter community is always looking for ways to create a clear separation between business logic and presentation. There are several solutions, but they can be overcomplicated. This article will introduce you to three approaches and explain why using StatefulWidgets directly can make it difficult to separate business logic and presentation (widgets). Why Separate Business Logic and Presentation? Widgets display information and allow the user to interact with the app. Logic, and the infrastructure layers underneath process, validate and transfer data. Separating these at the code level creates a clear separation of concerns. If we isolate logic in a class that does not reference the UI (widget code), it is easy to understand how the logic works by reading the code. The logic exists outside the context of the widget. We can reason about it without considering how it affects the...
Christian Findlay
Oct 09, 2022
