ProxyWidget class Null safety
A widget that has a child widget provided to it, instead of building a new widget.
Useful as a base class for other widgets, such as InheritedWidget and ParentDataWidget.
See also:
- InheritedWidget, for widgets that introduce ambient state that can be read by descendant widgets.
- ParentDataWidget, for widgets that populate the RenderObject.parentData slot of their child's RenderObject to configure the parent widget's layout.
- StatefulWidget and State, for widgets that can build differently several times over their lifetime.
- StatelessWidget, for widgets that always build the same way given a particular configuration and ambient state.
- Widget, for an overview of widgets in general.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- ProxyWidget
- Implementers
Constructors
- ProxyWidget({Key? key, required Widget child})
-
Creates a widget that has exactly one child widget.
const
Properties
Methods
-
createElement(
) → Element - Inflates this configuration to a concrete instance.
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects describing this node's children.protected">@protectedinherited -
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">@nonVirtualinherited