SignalHookWidget class abstract

A premium reactive HookWidget that both supports Flutter Hooks and implicitly tracks and rebuilds on signal changes.

SignalHookWidget establishes a dynamic reactive context directly at the Flutter element layer. Any signal accessed via .value inside the buildWidget method is implicitly tracked and subscribed to. At the same time, you can call any hooks (like useSignal, useFocusNode, etc.) within buildWidget.

This provides the ultimate developer experience, combining the power of implicit, boilerplate-free signal tracking with the rich lifecycle management of Flutter Hooks.

Dual Reactivity Example

final globalCartCount = signal(0);

class MyDualWidget extends SignalHookWidget {
  const MyDualWidget({super.key});

  @override
  Widget buildWidget(BuildContext context) {
    // 1. Declare hooks seamlessly:
    final controller = useTextEditingController();
    final focusNode = useFocusNode();
    final localCounter = useSignal(0);

    // 2. Implicit tracking of external/global signals:
    // No .watch(context) needed! Just accessing .value tracks it.
    return Column(
      children: [
        TextField(controller: controller, focusNode: focusNode),
        Text('Global Signal: ${globalCartCount.value}'),
        Text('Local Signal: ${localCounter.value}'),
      ],
    );
  }
}

Inheritance

Available extensions

StatelessWidgetConvertWidgetExtension

Constructors

SignalHookWidget({Key? key}): Constructor for SignalHookWidget.
const

Properties

hashCode → int: The hash code for this object.
no setterinherited
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

Methods

build(BuildContext context) → Widget: Describes the part of the user interface represented by this widget.
override
buildWidget(BuildContext context) → Widget: Subclasses override this method instead of build to define their widget tree.
createElement() → _StatelessHookElement: Creates a StatelessElement to manage this widget's location in the tree.
inherited
debugDescribeChildren() → List<DiagnosticsNode>: Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toSignalWidget() → SignalWidget: Available on StatelessWidget, provided by the StatelessWidgetConvertWidgetExtension extension
Converts this StatelessWidget to a SignalWidget.
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String: A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String: Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String: Returns a one-line detailed description of the object.
inherited
toStringShort() → String: A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited