About
AsyncValueNotifier is an asynchronous variant of ValueNotifier that coalesces multiple value assignments within the same event‑loop turn into a single notification dispatched in a later microtask.
Key benefits:
- Avoids synchronous listener re‑entrancy corrupting sequential logic.
- Prevents common Flutter "setState()/markNeedsBuild during build" style exceptions by deferring callbacks until after the current stack unwinds.
- Optionally cancels notification if value reverted during the same event loop turn.
- Optionally ignores duplicate listeners while triggering.
- Supports weak-referenced listeners (to avoid memory leaks).
- Supports custom equality checks.
Installation
- Run the following command in your project directory:
flutter pub add async_value_notifier
- Add the following code to your dart file:
import 'package:async_value_notifier/async_value_notifier.dart';
Usage
Almost the same as ValueNotifier while using the default configuration. For more information, please check example or API reference.