Scope class

A widget that watches the Reactable and rebuilds when the reactable changes. This widget must contains at least one Reactable in the builder function.

Scope(
 builder: (context, Observable<int> counter) => Column(
  children: [
    Text('counter: $counter'),
    TextButton(
      child: const Text("+"),
     onPressed: () => counter.value++,
    ),
  ],
),
)

You can also use ScopedValue to watch a temporary Reactable

You can also a condition to update the widget with where parameter. That mean that the widget will only be updated when the where result is true. if want to see more information of what is happening in the scope, you can use the debug parameter. by default the scope will throw an error if no reactable is within it. you can change this behavior with the throwOnError parameter.

Inheritance

Constructors

Scope({required WidgetBuilder builder, Where? where, bool? debug, bool? autoDispose, bool? throwOnError, Key? key})

Properties

autoDispose → bool?
finalinherited
builder → WidgetBuilder
final
debug → bool?
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
name → String
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
throwOnError → bool?
finalinherited
where → Where?
finalinherited

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}) → 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