StateBuilder<T> class Null safety

One of the three observer widgets in states_rebuilder

See WhenRebuilder, WhenRebuilderOr

Inheritance

Constructors

StateBuilder({Key? key, Widget builder(BuildContext context, ReactiveModel<T>? model)?, InjectedBaseState<T> observe()?, List<InjectedBaseState Function()>? observeMany, dynamic tag, Widget builderWithChild(BuildContext context, ReactiveModel<T>? model, Widget? child)?, Widget? child, dynamic onSetState(BuildContext context, ReactiveModel<T>? model)?, void onRebuildState(BuildContext context, ReactiveModel<T>? model)?, Object? watch(ReactiveModel<T>? model)?, bool shouldRebuild(ReactiveModel<T>? model)?, void initState(BuildContext context, ReactiveModel<T>? model)?, void dispose(BuildContext context, ReactiveModel<T>? model)?, void didChangeDependencies(BuildContext context, ReactiveModel<T>? model)?, void didUpdateWidget(BuildContext context, ReactiveModel<T>? model, StateBuilder<T> oldWidget)?, void afterInitialBuild(BuildContext context, ReactiveModel<T>? model)?})
One of the three observer widgets in states_rebuilder [...]
const

Properties

afterInitialBuild → (void Function?(BuildContext context, ReactiveModel<T>? model)?)
Called after the widget is first inserted in the widget tree.
final
builder → (Widget Function?(BuildContext context, ReactiveModel<T>? model)?)
StateBuilder( models:[myModel], builder:(BuildContext context, ReactiveModel model) =>MyWidget(), ) [...]
final
builderWithChild → (Widget Function?(BuildContext context, ReactiveModel<T>? model, Widget? child)?)
StateBuilder( models:[myModel], builderWithChild:(BuildContext context, ReactiveModel model, Widget child) =>MyWidget(child), child : MyChildWidget(), ) [...]
final
child Widget?
The child to be used in builderWithChild.
final
didChangeDependencies → (void Function?(BuildContext context, ReactiveModel<T>? model)?)
StateBuilder( didChangeDependencies:(BuildContext context, ReactiveModel model) { //...your code }, models:[myModel], builder:(BuildContext context, ReactiveModel model) =>MyWidget(), ) [...]
final
didUpdateWidget → (void Function?(BuildContext context, ReactiveModel<T>? model, StateBuilder<T> oldWidget)?)
StateBuilder( didUpdateWidget:(BuildContext context, ReactiveModel model,StateBuilder oldWidget) { myModel.dispose([context, model]); }, models:[myModel], builder:(BuildContext context, ReactiveModel model) =>MyWidget(), ) [...]
final
dispose → (void Function?(BuildContext context, ReactiveModel<T>? model)?)
StateBuilder( dispose:(BuildContext context, ReactiveModel model) { myModel.dispose([context, model]); }, models:[myModel], builder:(BuildContext context, ReactiveModel model) =>MyWidget(), ) [...]
final
hashCode int
The hash code for this object. [...]
@nonVirtual, read-only, inherited
initState → (void Function?(BuildContext context, ReactiveModel<T>? model)?)
StateBuilder( initState:(BuildContext context, ReactiveModel model)=> myModel.init([context,model]), models:[myModel], builder:(BuildContext context, ReactiveModel model) =>MyWidget(), ) [...]
final
key Key?
Controls how one widget replaces another widget in the tree. [...]
final, inherited
observe → (InjectedBaseState<T> Function?()?)
an observable class to which you want StateBuilder to subscribe. [...]
final
observeMany List<InjectedBaseState Function()>?
List of observable classes to which you want StateBuilder to subscribe. [...]
final
onRebuildState → (void Function?(BuildContext context, ReactiveModel<T>? model)?)
Called whenever this widget is notified and after rebuilding the widget.
final
onSetState → (dynamic Function?(BuildContext context, ReactiveModel<T>? model)?)
Called whenever this widget is notified.
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
shouldRebuild → (bool Function?(ReactiveModel<T>? model)?)
Callback to determine whether this StateBuilder will rebuild or not.
final
tag → dynamic
A tag or list of tags you want this StateBuilder to register with. [...]
final
watch → (Object? Function?(ReactiveModel<T>? model)?)
callback to be executed before notifying listeners. It the returned value is the same as the last one, the rebuild process is interrupted.
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
createState() State<StateBuilder<T>>
Creates the mutable state for this widget at a given location in the tree. [...]
override
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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. [...]
@nonVirtual, inherited