SlidingSquareLineIndicator class

An animated loading indicator with a line segment that travels around a square path.

A colored line segment (like a snake) travels continuously around the perimeter of an invisible square in a clockwise direction. The line maintains a constant length as it moves, with the head and tail progressing along the square's edges.

Example:

SlidingSquareLineIndicator(
  size: 50,
  color: Colors.blue,
  duration: Duration(seconds: 3),
  strokeWidth: 5,
  snakeLength: 0.3,
)
Inheritance

Constructors

SlidingSquareLineIndicator({Key? key, double size = 35, Color color = const Color(0xFF046D8B), Duration duration = const Duration(seconds: 4), double strokeWidth = 4, double snakeLength = 0.25})
Creates a sliding square line loading indicator.
const

Properties

color → Color
The color of the animated line segment.
final
duration → Duration
The duration of one complete cycle around the square.
final
hashCode → int
The hash code for this object.
no setterinherited
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
size → double
The width and height of the square indicator.
final
snakeLength → double
The length of the line segment as a fraction of the total perimeter (0.0-1.0).
final
strokeWidth → double
The width of the line stroke.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<SlidingSquareLineIndicator>
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