ScaleTransitionModifier class

Animates the scale of a transformed widget.

Here's an illustration of the ScaleTransition widget, with it's alignment animated by a CurvedAnimation set to Curves.fastOutSlowIn:

{@tool dartpad} The following code implements the ScaleTransition as seen in the video above:

** See code in examples/api/lib/widgets/transitions/scale_transition.0.dart ** {@end-tool}

See also:

  • PositionedTransition, a widget that animates its child from a start position to an end position over the lifetime of the animation.
  • RelativePositionedTransition, a widget that transitions its child's position based on the value of a rectangle relative to a bounding box.
  • SizeTransition, a widget that animates its own size and clips and aligns its child.
Inheritance
Available extensions

Constructors

ScaleTransitionModifier({Key? key, Widget? child, Key? modifierKey, required Animation<double> scale, Alignment alignment = Alignment.center, FilterQuality? filterQuality})
Creates a scale transition.
const

Properties

alignment Alignment
The alignment of the origin of the coordinate system in which the scale takes place, relative to the size of the box.
final
filterQuality FilterQuality?
The filter quality with which to apply the transform as a bitmap operation.
final
hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
modifierKey Key?
The actual key of the widget, which Modifier wrapped
finalinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
scale Animation<double>
The animation that controls the scale of the child.
final

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
inherited
buildWithChild(BuildContext context, Widget? child) Widget
A build method that receives an extra child parameter.
override
createElement() SingleChildStatelessElement
Create a SingleChildStatelessElement
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
modified() Modifier

Available on Widget, provided by the ModifierTransformer extension

Transform normal widget to Modifier
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

Operators

operator ==(Object other) bool
The equality operator.
inherited