JokerStage<T> class

A widget that listens to a JokerAct and rebuilds whenever the state changes.

JokerStage is the most direct way to bind a state object's value to the UI. It rebuilds on every notification, providing the entire state object to the builder.

For more optimized rebuilds based on a slice of the state, consider using JokerFrame.

{@tool snippet}

Direct Instantiation

final counterAct = Joker<int>(0); // Can be a Joker or a Presenter

class CounterText extends StatelessWidget {
  const CounterText({super.key});

  @override
  Widget build(BuildContext context) {
    return JokerStage<int>(
      joker: counterAct,
      builder: (context, count) {
        return Text('Count: $count');
      },
    );
  }
}

{@end-tool}

{@tool snippet}

Using the `.perform()` Extension

For a more fluent syntax, you can use the perform extension method on any JokerAct instance (like a Joker or Presenter) directly inside your build method.

final counterAct = Joker<int>(0);

// Inside a build method:
counterAct.perform(
  builder: (context, count) => Text('Count: $count'),
);

{@end-tool}

Inheritance

Constructors

JokerStage({Key? key, required JokerAct<T> act, required JokerStageBuilder<T> builder}): Creates a JokerStage that rebuilds when the act notifies listeners.
const

Properties

act → JokerAct<T>: The JokerAct instance to listen to.
final
builder → JokerStageBuilder<T>: The builder function that rebuilds when the state changes.
final
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
createElement() → StatelessElement: 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
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