ProxyWidget class
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
- Diagnosticable
- DiagnosticableTree
- Widget
- ProxyWidget
- Implementers
Constructors
- ProxyWidget({Key key, @required Widget child })
-
Creates a widget that has exactly one child widget.
const
Properties
- child → Widget
-
The widget below this widget in the tree. [...]
final
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- key → Key
-
Controls how one widget replaces another widget in the tree. [...]
final, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
createElement(
) → Element -
Inflates this configuration to a concrete instance. [...]
@protected, inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children. [...]
@protected, inherited
-
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 toStringDeep. [...]
inherited
-
toString(
{DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String -
Returns 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 ==(
dynamic other) → bool -
The equality operator. [...]
inherited