ScopedValue<T> class

This widget is useful when you need a temporary Reactable to be used for updating something in the UI. For example show/hide a widget.

ScopedValue(
   initData: false,
   builder: (context, reactable<bool> reactable) => Column(
     children: [
       Checkbox(
         value: reactable.value,
         onChanged: (value) => reactable.value = value!,
       ),
       if (reactable.value) SomeWidget(),
     ],
   ),
 )

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• BaseScope
• ScopedValue

Constructors

ScopedValue({required T initData, required Widget builder(BuildContext context, Reactable<T> observable), bool? debug, bool? throwOnError, bool? autoDispose, Where? condition, Key? key})

Properties

autoDispose → bool?

final, inherited

builder → Widget Function(BuildContext context, Reactable<T> observable)

final

data → Reactable<T>

final

debug → bool?

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

name → String

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

throwOnError → bool?

final, inherited

where → Where?

final, inherited

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