WheelDisplay class - wheel_display library

Constructors

WheelDisplay({Key? key, required SpinnerWheel config, required Animation<double> animation, required List<WheelSegment> segments, required WheelGeometry geometry, required double startRotation, required double endRotation, List<ImageLoadState> imageStates = const [], int? highlightIndex, Animation<double>? indicatorTick, bool clockwise = true, String? semanticsValue, VoidCallback? onCenterTap, VoidCallback? onDragStart, void onDragUpdate(Offset position, Offset delta, double size)?, void onDragEnd(Velocity velocity, double size)?, double minSize = 100.0, double maxSize = double.infinity, double aspectRatio = 1.0}): Creates a WheelDisplay.
const

Properties

animation → Animation<double>: The (already curved) animation driving the wheel's rotation.
final
aspectRatio → double: Aspect ratio for the wheel (default 1.0).
final
clockwise → bool: Whether the wheel is turning clockwise (sets the flick direction).
final
config → SpinnerWheel: The wheel's configuration.
final
endRotation → double: The target end rotation angle.
final
geometry → WheelGeometry: The angular layout of segments.
final
hashCode → int: The hash code for this object.
no setterinherited
highlightIndex → int?: The slice to highlight, if any.
final
imageStates → List<ImageLoadState>: The image loading state of each segment.
final
indicatorTick → Animation<double>?: Runs from 0 to 1 each time the indicator should flick.
final
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
maxSize → double: Maximum allowed size for the wheel.
final
minSize → double: Minimum allowed size for the wheel.
final
onCenterTap → VoidCallback?: Called when the center is tapped, or null if tapping does nothing.
final
onDragEnd → void Function(Velocity velocity, double size)?: Called when a drag ends, with the release velocity.
final
onDragStart → VoidCallback?: Called when a drag on the wheel starts.
final
onDragUpdate → void Function(Offset position, Offset delta, double size)?: Called as a drag moves, with the pointer position and movement in the wheel's coordinates and the wheel's size.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
segments → List<WheelSegment>: The list of segments to draw.
final
semanticsValue → String?: The wheel's current state for screen readers.
final
startRotation → double: The starting rotation angle.
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, 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

Constants

fallbackSize → const double: Size used when neither the width nor the height is constrained.