CrossFade<T> class

A widget to apply a crossfade animation between different states and/or widgets.

Inheritance

Constructors

CrossFade({Key? key, Duration duration = const Duration(milliseconds: 750), required T value, required Widget builder(BuildContext, T), bool equals(T, T) = _defaultEquals, bool highlightTransition(T, T) = _defaultHighlightTransition, AlignmentGeometry stackAlignment = AlignmentDirectional.center, double highlightScale = 1.2, Duration? highlightDuration, Clip clipBehavior = Clip.none, Curve curve = Curves.easeIn, Curve? disappearingCurve, Curve highlightingCurve = Curves.ease, Curve? highlightingReverseCurve, Curve sizeCurve = Curves.linear, Duration? sizeDuration})
The default constructor of CrossFade.
const

Properties

builder → Widget Function(BuildContext, T)
The builder which builds the different values during the animation.
final
clipBehavior → Clip
The clip behaviour for clipping while the size animation. For more customization like BorderRadius or similar please use widgets like ClipRRect or Container and their clipBehavior.
final
curve → Curve
Curve of the fading in animation.
final
disappearingCurve → Curve?
Curve of the fading out animation. Defaults to curve.flipped.
final
duration → Duration
The duration of the fading.
final
equals → bool Function(T, T)
The overriding of the equals function. CrossFade only animates between two different values if equals returns false for these two.
final
hashCode → int
The hash code for this object.
no setterinherited
highlightDuration → Duration?
The duration of the whole highlight animation. Defaults to duration.
final
highlightingCurve → Curve
Curve of the highlighting animation.
final
highlightingReverseCurve → Curve?
Reverse curve of the highlighting animation. Defaults to highlightingCurve.flipped.
final
highlightScale → double
The maximum scale during the highlight animation.
final
highlightTransition → bool Function(T, T)
CrossFade only highlights the new value during the animation if highlightTransition returns true.
final
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
sizeCurve → Curve
Curve of the size animation.
final
sizeDuration → Duration?
Duration of the size animation. Defaults to duration.
final
stackAlignment → AlignmentGeometry
The alignment for the children of the underlying stack.
final
value → T
The current value.
final

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.
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