TTimelineIndicator class

A circular timeline indicator surrounded by a colored outer ring.

Features:

  • Outer ring with customizable color, thickness, and gap.
  • Inner circle background and icon colors resolved via TVariant and TWidgetTheme.
  • Inner icon matching the theme variant or custom overrides.
Inheritance
Available extensions

Constructors

TTimelineIndicator({Key? key, double size = 36.0, Color? color, Color? ringColor, Color? innerColor, double ringWidth = 2.0, double ringGap = 2.5, Widget? icon, IconData? iconData, double? iconSize, Color? iconColor, TVariant variant = TVariant.tonal, bool isActive = false, bool isCompleted = false, bool isDot = false, Widget? child, VoidCallback? onTap})
const
TTimelineIndicator.dot({Key? key, double size = 24.0, Color? color, Color? ringColor, Color? innerColor, double ringWidth = 2.0, double ringGap = 2.0, TVariant variant = TVariant.tonal, bool isActive = false, bool isCompleted = false, VoidCallback? onTap})
Factory for a simple dot indicator inside the colored ring.
const

Properties

child → Widget?
Optional custom child widget inside the inner circle.
final
color → Color?
Color override for the indicator and ring.
final
hashCode → int
The hash code for this object.
no setterinherited
icon → Widget?
Optional icon to display inside the inner circle.
final
iconColor → Color?
Color of the icon.
final
iconData → IconData?
Optional IconData shorthand for icon.
final
iconSize → double?
Size of the icon. Defaults to size * 0.44.
final
innerColor → Color?
Specific background color for the inner circle.
final
isActive → bool
Whether the indicator represents an active/highlighted step.
final
isCompleted → bool
Whether the indicator represents a completed step.
final
isDot → bool
Whether this indicator renders a minimalist center dot.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onTap → VoidCallback?
Callback when the indicator is tapped.
final
ringColor → Color?
Specific color for the outer ring. Defaults to color or resolved variant color.
final
ringGap → double
Gap spacing between the outer ring and the inner circle. Defaults to 2.5.
final
ringWidth → double
Thickness of the outer colored ring. Defaults to 2.0.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
size → double
The total diameter (width and height) of the indicator.
final
variant → TVariant
Visual variant of the indicator (solid, tonal, outline, etc.). Defaults to TVariant.tonal.
final

Methods

box({double minW = 0.0, double minH = 0.0, double maxW = double.infinity, double maxH = double.infinity}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a ConstrainedBox to apply layout constraints.
build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
center({bool when = true}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Center widget.
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
expanded({int flex = 1}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in an Expanded widget.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
padding([double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0]) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Padding with flexible edge control.
paddingSymmetric({double h = 0.0, double v = 0.0}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Padding with symmetric horizontal and vertical spacing.
size({double? w, double? h}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a SizedBox to apply fixed width and/or height.
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
visible(bool visible, {bool maintainState = false}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Visibility widget.
when(bool condition) → Widget

Available on Widget, provided by the WidgetX extension

Returns this widget if condition is true, otherwise returns SizedBox.shrink(). Usage: Text('Hello').when(isVisible)

Operators

operator ==(Object other) → bool
The equality operator.
inherited