WatchAsyncComputed<T> class

A widget that builds itself based on the latest value emitted by a ComputedAsyncNotifier.

The value is retrieved from the ComputedAsyncNotifier when this widget is first built, and then again whenever the ComputedAsyncNotifier emits a new value. The builder callback is called with the latest value from the ComputedAsyncNotifier whenever this widget needs to be rebuilt.

This widget is useful for building widgets that depend on the value of a ComputedAsyncNotifier.

Inheritance

Constructors

WatchAsyncComputed({Key? key, required Widget builder(BuildContext context, T? value), required ComputedAsyncNotifier<T> computed})
Creates a new WatchAsyncComputed.
const

Properties

builder → Widget Function(BuildContext context, T? value)
A callback that is called with the latest value from the ComputedAsyncNotifier whenever this widget needs to be rebuilt.
final
computed → ComputedAsyncNotifier<T>
The ComputedAsyncNotifier whose value this widget depends on.
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

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<WatchAsyncComputed>
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.
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