notifyListeners method

void notifyListeners ()
inherited

Calls all the listeners.

If listeners are added or removed during this function, the modifications will not change which listeners are called during this iteration.

Implementation

void notifyListeners() {
  final List<VoidCallback> localListeners = List<VoidCallback>.from(_listeners);
  for (final VoidCallback listener in localListeners) {
    InformationCollector collector;
    assert(() {
      collector = () sync* {
        yield DiagnosticsProperty<AnimationLocalListenersMixin>(
          'The $runtimeType notifying listeners was',
          this,
          style: DiagnosticsTreeStyle.errorProperty,
        );
      };
      return true;
    }());
    try {
      if (_listeners.contains(listener))
        listener();
    } catch (exception, stack) {
      FlutterError.reportError(FlutterErrorDetails(
        exception: exception,
        stack: stack,
        library: 'animation library',
        context: ErrorDescription('while notifying listeners for $runtimeType'),
        informationCollector: collector,
      ));
    }
  }
}