$BuildContext class

dart_eval wrapper for BuildContext

Implemented types

• BuildContext

Constructors

$BuildContext.wrap(BuildContext $value)

const

Properties

$reified → BuildContext

Fully reify the underlying value so it can be used in a Dart context. For example, recursively transform collections into their underlying $values.

no setter

$value → BuildContext

The backing Dart value of this $Value

final

debugDoingBuild → bool

Whether the widget is currently updating the widget or render tree.

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

mounted → bool

Whether the Widget this context is associated with is currently mounted in the widget tree.

no setter, override

owner → BuildOwner?

The BuildOwner for this context. The BuildOwner is in charge of managing the rendering pipeline for this context.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

size → Size?

The size of the RenderBox returned by findRenderObject.

no setter, override

widget → Widget

The current configuration of the Element that is this BuildContext.

no setter, override

Methods

$getProperty(Runtime runtime, String identifier) → $Value?

Get a property by identifier on this instance

$getRuntimeType(Runtime runtime) → int

$setProperty(Runtime runtime, String identifier, $Value value) → void

Set a property by identifier on this instance to value

dependOnInheritedElement(InheritedElement ancestor, {Object? aspect}) → InheritedWidget

Registers this build context with ancestor such that when ancestor's widget changes this build context is rebuilt.

override

dependOnInheritedWidgetOfExactType<T extends InheritedWidget>({Object? aspect}) → T?

Returns the nearest widget of the given type T and creates a dependency on it, or null if no appropriate widget is found.

override

describeElement(String name, {DiagnosticsTreeStyle style = DiagnosticsTreeStyle.errorProperty}) → DiagnosticsNode

Returns a description of the Element associated with the current build context.

override

describeMissingAncestor({required Type expectedAncestorType}) → List<DiagnosticsNode>

Adds a description of a specific type of widget missing from the current build context's ancestry tree.

override

describeOwnershipChain(String name) → DiagnosticsNode

Adds a description of the ownership chain from a specific Element to the error report.

override

describeWidget(String name, {DiagnosticsTreeStyle style = DiagnosticsTreeStyle.errorProperty}) → DiagnosticsNode

Returns a description of the Widget associated with the current build context.

override

dispatchNotification(Notification notification) → void

Start bubbling this notification at the given build context.

override

findAncestorRenderObjectOfType<T extends RenderObject>() → T?

Returns the RenderObject object of the nearest ancestor RenderObjectWidget widget that is an instance of the given type T.

override

findAncestorStateOfType<T extends State<StatefulWidget>>() → T?

Returns the State object of the nearest ancestor StatefulWidget widget that is an instance of the given type T.

override

findAncestorWidgetOfExactType<T extends Widget>() → T?

Returns the nearest ancestor widget of the given type T, which must be the type of a concrete Widget subclass.

override

findRenderObject() → RenderObject?

The current RenderObject for the widget. If the widget is a RenderObjectWidget, this is the render object that the widget created for itself. Otherwise, it is the render object of the first descendant RenderObjectWidget.

override

findRootAncestorStateOfType<T extends State<StatefulWidget>>() → T?

Returns the State object of the furthest ancestor StatefulWidget widget that is an instance of the given type T.

override

getElementForInheritedWidgetOfExactType<T extends InheritedWidget>() → InheritedElement?

Obtains the element corresponding to the nearest widget of the given type T, which must be the type of a concrete InheritedWidget subclass.

override

getInheritedWidgetOfExactType<T extends InheritedWidget>() → T?

Returns the nearest widget of the given InheritedWidget subclass T or null if an appropriate ancestor is not found.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

visitAncestorElements(bool visitor(Element element)) → void

Walks the ancestor chain, starting with the parent of this build context's widget, invoking the argument for each ancestor.

override

visitChildElements(ElementVisitor visitor) → void

Walks the children of this widget.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

$declaration → const BridgeClassDef

Compile-time bridge declaration for $BuildContext

$type → const BridgeTypeRef

Compile-time type reference for $BuildContext