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Flutter & Dart · Class

ChangeNotifier

ChangeNotifier lets a class notify registered callbacks when its state changes. It can be extended or mixed in and is useful for models observed by Listenable-based widgets.

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Syntax

abstract class ChangeNotifier implements Listenable

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  • ValueNotifier
  • ListenableBuilder
  • Listenable
  • RestorableChangeNotifier

Source: ChangeNotifier class - foundation library - Dart API. Checked 2026-11-03.