RollState class
State class for Roll that manages animations and provides properties to descendant Foil widgets.
This class manages the animation controller for Crinkle animations and provides access to properties such as the gradient and transformation functions needed by descendant Foil widgets.
- Inheritance
- Mixed-in types
Constructors
Properties
- context → BuildContext
-
The location in the tree where this widget builds.
no setterinherited
- gradient → Gradient?
-
The gradient to share with descendant Foil widgets.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- isAnimated → bool
-
Whether this Roll provides animations for descendant Foil widgets.
no setter
- isSized → bool
-
Whether this Roll widget has determined its size.
no setter
- mounted → bool
-
Whether this State object is currently in a tree.
no setterinherited
- rollListenable → ValueListenable?
-
The animation controller as a ValueListenable.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scalar → Scalar
-
The scaling factors for gradient animations.
no setter
- size → Size
-
The current size of this Roll widget.
no setter
- transform → TransformGradient?
-
The transformation function for gradient animations.
no setter
- widget → Roll
-
The current configuration.
no setterinherited
Methods
-
activate(
) → void -
Called when this object is reinserted into the tree after having been
removed via deactivate.
inherited
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
createTicker(
TickerCallback onTick) → Ticker -
Creates a ticker with the given callback.
inherited
-
deactivate(
) → void -
Called when this object is removed from the tree.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
didChangeDependencies(
) → void -
Called when a dependency of this State object changes.
inherited
-
didUpdateWidget(
covariant Roll oldWidget) → void -
Called whenever the widget configuration changes.
inherited
-
dispose(
) → void -
Called when this object is removed from the tree permanently.
override
-
getDescendantOffset(
{required RenderBox descendant, Offset offset = Offset.zero}) → Offset - Calculates the offset of a descendant widget relative to this Roll.
-
initState(
) → void -
Called when this object is inserted into the tree.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reassemble(
) → void -
Called whenever the application is reassembled during debugging, for
example during hot reload.
inherited
-
setState(
VoidCallback fn) → void -
Notify the framework that the internal state of this object has changed.
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
-
toStringShort(
) → String -
A brief description of this object, usually just the runtimeType and the
hashCode.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited