RenderObjectToWidgetAdapter<T extends RenderObject> class
A bridge from a RenderObject to an Element tree.
The given container is the RenderObject that the Element tree should be
inserted into. It must be a RenderObject that implements the
RenderObjectWithChildMixin protocol. The type argument T is the kind of
RenderObject that the container expects as its child.
The RenderObjectToWidgetAdapter is an alternative to RootWidget for bootstrapping an element tree. Unlike RootWidget it requires the existence of a render tree (the container) to attach the element tree to.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- RenderObjectWidget
- RenderObjectToWidgetAdapter
Constructors
-
RenderObjectToWidgetAdapter({Widget? child, required RenderObjectWithChildMixin<
T> container, String? debugShortDescription}) - Creates a bridge from a RenderObject to an Element tree.
Properties
- child → Widget?
-
The widget below this widget in the tree.
final
-
container
→ RenderObjectWithChildMixin<
T> -
The RenderObject that is the parent of the Element created by this widget.
final
- debugShortDescription → String?
-
A short description of this widget used by debugging aids.
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
-
attachToRenderTree(
BuildOwner owner, [RenderObjectToWidgetElement< T> ? element]) → RenderObjectToWidgetElement<T> - Inflate this widget and actually set the resulting RenderObject as the child of container.
-
createElement(
) → RenderObjectToWidgetElement< T> -
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
override
-
createRenderObject(
BuildContext context) → RenderObjectWithChildMixin< T> -
Creates an instance of the RenderObject class that this
RenderObjectWidget represents, using the configuration described by this
RenderObjectWidget.
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
-
didUnmountRenderObject(
covariant RenderObject renderObject) → void -
A render object previously associated with this widget has been removed
from the tree. The given RenderObject will be of the same type as
returned by this object's createRenderObject.
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.
override
-
updateRenderObject(
BuildContext context, covariant RenderObject renderObject) → void -
Copies the configuration described by this RenderObjectWidget to the
given RenderObject, which will be of the same type as returned by this
object's createRenderObject.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited