RoundedRectSliderTrackShape class

The default shape of a Slider's track.

It paints a solid colored rectangle with rounded edges, vertically centered in the parentBox. The track rectangle extends to the bounds of the parentBox, but is padded by the larger of RoundSliderOverlayShape's radius and RoundSliderThumbShape's radius. The height is defined by the SliderThemeData.trackHeight. The color is determined by the Slider's enabled state and the track segment's active state which are defined by: SliderThemeData.activeTrackColor, SliderThemeData.inactiveTrackColor, SliderThemeData.disabledActiveTrackColor, SliderThemeData.disabledInactiveTrackColor.

The track segment between the start of the slider and the thumb is the active track segment. The track segment between the thumb and the end of the slider is the inactive track segment. In TextDirection.ltr, the start of the slider is on the left, and in TextDirection.rtl, the start of the slider is on the right.

![A slider widget, consisting of 5 divisions and showing the rounded rect slider track shape.] (

See also:

Mixed in types


Create a slider track that draws two rectangles with rounded outer edges.


hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited


getPreferredRect({required RenderBox parentBox, Offset offset =, required SliderThemeData sliderTheme, bool isEnabled = false, bool isDiscrete = false}) Rect
Returns a rect that represents the track bounds that fits within the Slider.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
paint(PaintingContext context, Offset offset, {required RenderBox parentBox, required SliderThemeData sliderTheme, required Animation<double> enableAnimation, required TextDirection textDirection, required Offset thumbCenter, Offset? secondaryOffset, bool isDiscrete = false, bool isEnabled = false, double additionalActiveTrackHeight = 2}) → void
Paints the track shape based on the state passed to it.
toString() String
A string representation of this object.


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