Scene class
Defines a coordinate system to position SceneElements on and a scope in which child Windows can find the SceneElements to present.
The origin of the scene coordinate system is aligned with the top left corner of the Scene widget. The size of a Scene is determined by it's child.
See also:
- SceneElement for the parent class of all Scene.elements.
- Window for the Widget wich paints the SceneElements of the Scene above it.
- WindowDelegate for the object which provides the visual representation of SceneElements.
- Inheritance
Constructors
-
Scene({Key? key, required List<
SceneElement> elements, Widget? layout, required Widget child}) -
Creates a new Scene, which defines a coordinate system to position
SceneElements on and a scope in which child Windows can find the
SceneElements to present.
const
Properties
- child → Widget
-
The Widget tree which contains the Windows which display this
Scene's elements.
final
-
elements
→ List<
SceneElement> -
The
SceneElement
s of this scene.final - hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- layout → Widget?
-
The Widget tree which positions the Scene's LayedOutSceneElements.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
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.
override
-
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.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
of(
BuildContext context) → Scene -
Returns the nearest Scene above the given
context
.