TabIndicator class

Internal widget that manages the draggable indicator with physics.

Extracted from GlassBottomBar to keep the public widget focused on layout and configuration, while this widget owns all gesture, animation, and rendering logic for the tab indicator pill.

Responsibilities:

Inheritance

Constructors

TabIndicator({required Widget childUnselected, required Widget selectedTabBuilder(BuildContext, double, Alignment), required int tabIndex, required int tabCount, required ValueChanged<int> onTabChanged, required bool visible, required Color? indicatorColor, required GlassQuality quality, required double barHeight, required double barBorderRadius, required EdgeInsetsGeometry tabPadding, required double magnification, required double innerBlur, required MaskingQuality maskingQuality, LiquidGlassSettings? indicatorSettings, GlobalKey<State<StatefulWidget>>? backgroundKey, double indicatorExpansion = 14, Color? interactionGlowColor, double interactionGlowRadius = 1.5, double interactionGlowBlurRadius = 0, double interactionGlowSpreadRadius = 0, double interactionGlowOpacity = 1, double interactionScale = 1.0, Key? key})
const

Properties

backgroundKey → GlobalKey<State<StatefulWidget>>?
final
barBorderRadius → double
final
barHeight → double
final
childUnselected → Widget
final
hashCode → int
The hash code for this object.
no setterinherited
indicatorColor → Color?
final
indicatorExpansion → double
How far the jelly indicator's leading and trailing edges expand past the tab boundary as the indicator translates. Higher values give a more dramatic "puff" stretch; lower values produce a tighter, more iOS-native feel. Defaults to 14 to match the pre-existing visual.
final
indicatorSettings → LiquidGlassSettings?
final
innerBlur → double
final
interactionGlowBlurRadius → double
final
interactionGlowColor → Color?
final
interactionGlowOpacity → double
final
interactionGlowRadius → double
final
interactionGlowSpreadRadius → double
final
interactionScale → double
The scale factor applied by LiquidStretch on press.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
magnification → double
final
maskingQuality → MaskingQuality
final
onTabChanged → ValueChanged<int>
final
quality → GlassQuality
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedTabBuilder → Widget Function(BuildContext, double, Alignment)
final
tabCount → int
final
tabIndex → int
final
tabPadding → EdgeInsetsGeometry
final
visible → bool
final

Methods

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