ReduxSelector<St, Model> class

This widget will obtain the AsyncRedux store, state and dispatch method from its ancestors, and pass them to the builder. It will also prevent unnecessary widget rebuilds. To that end, the selector should return a "model" object, and the widget will rebuild only when that model changes. The model will also be available in the builder.

If the returned model is a List, then the widget will rebuild only when any of the list items change.

For more info, see https://pub.dev/documentation/provider/latest/provider/Selector-class.html

Example:

Widget build(BuildContext context) =>
 ReduxSelector<AppState, dynamic>(
    selector: (context, state) => [state.counter, state.description],
    builder: (context, store, state, dispatch, model, child) =>
        Scaffold(
            appBar: AppBar(title: Text('Increment Example')),
            body: Center(
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  Text("You've pushed the button:"),
                  Text('${state.counter}', style: TextStyle(fontSize: 30)),
                  Text('${state.description}', style: TextStyle(fontSize: 15)),
                ])),
            floatingActionButton: FloatingActionButton(
              onPressed: () => dispatch(IncrementAndGetDescriptionAction()),
              child: Icon(Icons.add),
            )));
Inheritance

Constructors

ReduxSelector({Key? key, required Widget builder(BuildContext context, Store<St> store, St state, Dispatch dispatch, Model model, Widget? child), required Model selector(BuildContext, St), Widget? child})

Properties

builder → Widget Function(BuildContext context, Store<St> store, St state, Dispatch dispatch, Model model, Widget? child)
A function that builds a widget tree from child and the last result of selector.
finalinherited
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
selector → Create<Model>
A function that obtains some InheritedWidget and map their content into a new object with only a limited number of properties.
finalinherited

Methods

createElement() → SingleChildStatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _Selector0State<St, Model>
Creates the mutable state for this widget at a given 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}) → 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