RotatingDualHalfArcLoader class

A custom rotating loader with two opposite arcs.

The RotatingDualHalfArcLoader widget displays two red arcs rotating continuously around a center. The arcs each span 30% of a full circle (108 degrees) and are positioned 180 degrees apart to form a balanced, rotating design.

Customizable Parameters:

  • size: The overall size (width and height) of the loader widget.
  • strokeWidth: Thickness of the arcs. It should be less than a third of the size for best visuals.
  • color: Color of the arcs, set to red by default.
  • rotationDurationMs: Duration in milliseconds for a complete rotation of the loader.

Example Usage:

RotatingDualHalfArcLoader(
  size: 48.0,
  strokeWidth: 5.0,
  color: Colors.red,
  rotationDurationMs: 1000,
)

Assertions:

  • size: Must be greater than 0.
  • strokeWidth: Must be greater than 0 and less than a third of the size.
  • rotationDurationMs: Must be at least 500 milliseconds
Inheritance

Constructors

RotatingDualHalfArcLoader({Key? key, double size = 48.0, double strokeWidth = 5.0, Color color = Colors.red, int rotationDurationMs = 1000})
const

Properties

color → Color
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
rotationDurationMs → int
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
size → double
final
strokeWidth → double
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<RotatingDualHalfArcLoader>
Creates the mutable state for this widget at a given location in the tree.
override
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