SceneScope class
Exposes the active Scene (and the per-frame elapsed time) to descendants of a SceneView.
Resolve the scene from a descendant's BuildContext with SceneScope.of. Today SceneView is the only producer and there are no built-in consumers; this plumbing exists so a future declarative node API can attach widgets to the right scene subtree without restructuring the view.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- ProxyWidget
- InheritedWidget
- SceneScope
Constructors
-
SceneScope({Key? key, required Scene scene, required ValueListenable<
Duration> elapsed, required Widget child}) -
const
Properties
- child → Widget
-
The widget below this widget in the tree.
finalinherited
-
elapsed
→ ValueListenable<
Duration> -
The total elapsed time since the enclosing SceneView started ticking.
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
- scene → Scene
-
The scene being rendered by the enclosing SceneView.
final
Methods
-
createElement(
) → InheritedElement -
Inflates this configuration to a concrete instance.
inherited
-
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
-
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, int wrapWidth = 65}) → 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
-
updateShouldNotify(
covariant SceneScope oldWidget) → bool -
Whether the framework should notify widgets that inherit from this widget.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
maybeOf(
BuildContext context) → SceneScope? - The nearest SceneScope, or null if there is none.
-
of(
BuildContext context) → Scene - The Scene of the nearest enclosing SceneView.