RenderObjectToWidgetAdapter<T extends RenderObject> class Null safety

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.

Used by runApp to bootstrap applications.



RenderObjectToWidgetAdapter({Widget? child, required RenderObjectWithChildMixin<T> container, String? debugShortDescription})
Creates a bridge from a RenderObject to an Element tree.


child Widget?
The widget below this widget in the tree.
container RenderObjectWithChildMixin<T>
The RenderObject that is the parent of the Element created by this widget.
debugShortDescription String?
A short description of this widget used by debugging aids.
hashCode int
The hash code for this object.
@nonVirtual, 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


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.
createRenderObject(BuildContext context) RenderObjectWithChildMixin<T>
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.
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.
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.
@protected, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
toString({DiagnosticLevel minLevel =}) String
A string representation of this object.
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a string representation of this node and its descendants.
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a one-line detailed description of the object.
toStringShort() String
A short, textual description of this widget.
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.


operator ==(Object other) bool
The equality operator.
@nonVirtual, inherited