AnimatedFractionallySizedBox class
Animated version of FractionallySizedBox that gradually changes its values over a period of time.
The AnimatedFractionallySizedBox will automatically animate between the old and new values of properties when they change using the provided curve and duration. Properties that are null are not animated. Its child and descendants are not animated.
This class is useful for generating simple implicit transitions between different parameters to FractionallySizedBox with its internal AnimationController. For more complex animations, you'll likely want to use a subclass of AnimatedWidget such as the DecoratedBoxTransition or use your own AnimationController.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ImplicitlyAnimatedWidget
- AnimatedFractionallySizedBox
Constructors
- AnimatedFractionallySizedBox({Key? key, Widget? child, double? widthFactor, double? heightFactor, AlignmentGeometry alignment = Alignment.center, required Duration duration, Curve curve = Curves.linear, VoidCallback? onEnd})
-
Creates a container that animates its parameters implicitly.
const
Properties
- alignment → AlignmentGeometry
-
How to align the child.
final
- child → Widget?
-
The child contained by the container.
final
- curve → Curve
-
The curve to apply when animating the parameters of this container.
finalinherited
- duration → Duration
-
The duration over which to animate the parameters of this container.
finalinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- heightFactor → double?
-
If non-null, the fraction of the incoming height given to the child.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onEnd → VoidCallback?
-
Called every time an animation completes.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- widthFactor → double?
-
If non-null, the fraction of the incoming width given to the child.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → _AnimatedFractionallySizedBoxState -
Creates the mutable state for this widget at a given location in the tree.
override
-
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.
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