Flutter's State Lifecycle: From Creation to Disposal
A Flutter State object outlives its widget configuration. The framework manages its journey from creation (`initState`) to permanent removal (`dispose`), calling methods like `build` along the way. This governs all `StatefulWidget`s.
A Flutter `State` object is persistent, outliving the temporary `Widget` configurations it displays. The framework manages its lifecycle from one-time setup (`initState`) to its final, permanent removal (`dispose`). In between, it reacts to new data (`didUpdateWidget`) and rebuilds the UI (`build`). This sequence is fundamental to every `StatefulWidget`. The key footgun: Don't put final cleanup logic in `deactivate()`; a widget can be reinserted elsewhere, so use `dispose()` to release resources.
Read the original → api.flutter.dev
- #flutter
- #dart
- #state management
- #lifecycle
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