SquigglySliderTrackShape class

A squiggly Variant of the default Slider track. Similar to that in the Android 13 Media Control. Track for the SquigglySlider introduced with this package.

It paints a moving sinus-curve with rounded edges, vertically centered in the parentBox. The amplitude and wavelength of the curve can be adjusted by squiggleAmplitude and squiggleWavelength respectively, while the current phase shift (as a factor of the wavelength) can be adjusted with squigglePhaseFactor, this will be animated by the SquigglySlider. The thickness 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.

See also:

• SquigglySlider, for the component that is meant to display this shape.
• SliderThemeData, where an instance of this class is set to inform the slider of the visual details of the its track.
• SliderTrackShape, which can be used to create custom shapes for the Slider's track.
• RoundedRectSliderTrackShape, for a similar track (the default for the normal Slider).

Inheritance

• Object
• SliderTrackShape
• SquigglySliderTrackShape

Mixed-in types

• BaseSliderTrackShape

Constructors

SquigglySliderTrackShape({double squiggleAmplitude = 0.0, double squiggleWavelength = 0.0, double squigglePhaseFactor = 1.0})

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

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

squiggleAmplitude → double

final

squigglePhaseFactor → double

final

squiggleWavelength → double

final

Methods

getPreferredRect({required RenderBox parentBox, Offset offset = Offset.zero, required SliderThemeData sliderTheme, bool isEnabled = false, bool isDiscrete = false}) → Rect

Returns a rect that represents the track bounds that fits within the Slider.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

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.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited