SinkingBarsIndicator class

An animated loading indicator with a 3x3 grid of bars that sink in and out sequentially.

Rows of bars grow upward from the bottom in sequence (like filling up), hold position briefly, then shrink back down in the same sequential pattern (like draining). Creates a "sinking" or "filling" visual effect.

Example:

SinkingBarsIndicator(
  size: 80,
  color: Colors.cyan,
  duration: Duration(milliseconds: 2000),
)
Inheritance

Constructors

SinkingBarsIndicator({Key? key, double size = 60, Color color = Colors.black, Duration duration = const Duration(milliseconds: 1500)})
Creates a sinking bars loading indicator.
const

Properties

color → Color
The color of the animated bars.
final
duration → Duration
The duration of one complete animation cycle (fill, hold, drain).
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 indicator (creates a square).
final

Methods

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