State Management
Definition.
State Management: The implementation of a design pattern that manages the state of an application or a component.
In More Detail
State management is really about deciding where a piece of data lives and who is allowed to change it. Most confusing UI bugs come from the same value being stored in two places and the copies disagreeing.
The practical rule is to keep state as local as possible and lift it only when something else genuinely needs it. In Flutter I use BLoC on apps with multi-role flows and non-trivial business logic, because separating that logic from widgets makes it testable without spinning up the UI.
In Practice
In Flutter apps I default to BLoC for anything beyond a trivial screen — it keeps business logic out of widgets, which is what makes a multi-role app like GymTaar's trainer/member flows testable instead of a tangle of setState calls.
Related Terms
Browse the full software development glossary, or see the frequently asked questions.
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