DecoratedBoxTransition class
Animated version of a DecoratedBox that animates the different properties of its Decoration.
Here's an illustration of the DecoratedBoxTransition widget, with it's decoration animated by a CurvedAnimation set to Curves.decelerate:
The following code implements the DecoratedBoxTransition as seen in the video
above:
link
To create a local project with this code sample, run:
flutter create --sample=widgets.DecoratedBoxTransition.1 mysample
See also:
- DecoratedBox, which also draws a Decoration but is not animated.
- AnimatedContainer, a more full-featured container that also animates on decoration using an internal animation.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- AnimatedWidget
- DecoratedBoxTransition
Constructors
-
DecoratedBoxTransition({Key? key, required Animation<
Decoration> decoration, DecorationPosition position = DecorationPosition.background, required Widget child}) -
Creates an animated DecoratedBox whose Decoration animation updates
the widget.
const
Properties
- child → Widget
-
The widget below this widget in the tree.
final
-
decoration
→ Animation<
Decoration> -
Animation of the decoration to paint.
final
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- listenable → Listenable
-
The Listenable to which this widget is listening.
finalinherited
- position → DecorationPosition
-
Whether to paint the box decoration behind or in front of the child.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
Methods
-
build(
BuildContext context) → Widget -
Override this method to build widgets that depend on the state of the
listenable (e.g., the current value of the animation).
override
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< AnimatedWidget> -
Subclasses typically do not override this method.
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects 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}) → 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