SliderThemeData class Null safety
Holds the color, shape, and typography values for a Material Design slider theme.
Use this class to configure a SliderTheme widget, or to set the ThemeData.sliderTheme for a Theme widget.
To obtain the current ambient slider theme, use SliderTheme.of.
This theme is for both the Slider and the RangeSlider. The properties that are only for the Slider are: tickMarkShape, thumbShape, trackShape, and valueIndicatorShape. The properties that are only for the RangeSlider are rangeTickMarkShape, rangeThumbShape, rangeTrackShape, rangeValueIndicatorShape, overlappingShapeStrokeColor, minThumbSeparation, and thumbSelector. All other properties are used by both the Slider and the RangeSlider.
The parts of a slider are:
- The "thumb", which is a shape that slides horizontally when the user drags it.
- The "track", which is the line that the slider thumb slides along.
- The "tick marks", which are regularly spaced marks that are drawn when using discrete divisions.
- The "value indicator", which appears when the user is dragging the thumb to indicate the value being selected.
- The "overlay", which appears around the thumb, and is shown when the thumb is pressed, focused, or hovered. It is painted underneath the thumb, so it must extend beyond the bounds of the thumb itself to actually be visible.
- The "active" side of the slider is the side between the thumb and the minimum value.
- The "inactive" side of the slider is the side between the thumb and the maximum value.
- The Slider is disabled when it is not accepting user input. See Slider for details on when this happens.
The thumb, track, tick marks, value indicator, and overlay can be customized by creating subclasses of SliderTrackShape, SliderComponentShape, and/or SliderTickMarkShape. See RoundSliderThumbShape, RectangularSliderTrackShape, RoundSliderTickMarkShape, RectangularSliderValueIndicatorShape, and RoundSliderOverlayShape for examples.
The track painting can be skipped by specifying 0 for trackHeight. The thumb painting can be skipped by specifying SliderComponentShape.noThumb for SliderThemeData.thumbShape. The overlay painting can be skipped by specifying SliderComponentShape.noOverlay for SliderThemeData.overlayShape. The tick mark painting can be skipped by specifying SliderTickMarkShape.noTickMark for SliderThemeData.tickMarkShape. The value indicator painting can be skipped by specifying the appropriate ShowValueIndicator for SliderThemeData.showValueIndicator.
See also:
- SliderTheme widget, which can override the slider theme of its children.
- Theme widget, which performs a similar function to SliderTheme, but for overall themes.
- ThemeData, which has a default SliderThemeData.
- SliderComponentShape, which can be used to create custom shapes for the Slider's thumb, overlay, and value indicator and the RangeSlider's overlay.
- SliderTrackShape, which can be used to create custom shapes for the Slider's track.
- SliderTickMarkShape, which can be used to create custom shapes for the Slider's tick marks.
- RangeSliderThumbShape, which can be used to create custom shapes for the RangeSlider's thumb.
- RangeSliderValueIndicatorShape, which can be used to create custom shapes for the RangeSlider's value indicator.
- RangeSliderTrackShape, which can be used to create custom shapes for the RangeSlider's track.
- RangeSliderTickMarkShape, which can be used to create custom shapes for the RangeSlider's tick marks.
- Mixed in types
- Annotations
Constructors
-
SliderThemeData({double? trackHeight, Color? activeTrackColor, Color? inactiveTrackColor, Color? disabledActiveTrackColor, Color? disabledInactiveTrackColor, Color? activeTickMarkColor, Color? inactiveTickMarkColor, Color? disabledActiveTickMarkColor, Color? disabledInactiveTickMarkColor, Color? thumbColor, Color? overlappingShapeStrokeColor, Color? disabledThumbColor, Color? overlayColor, Color? valueIndicatorColor, SliderComponentShape? overlayShape, SliderTickMarkShape? tickMarkShape, SliderComponentShape? thumbShape, SliderTrackShape? trackShape, SliderComponentShape? valueIndicatorShape, RangeSliderTickMarkShape? rangeTickMarkShape, RangeSliderThumbShape? rangeThumbShape, RangeSliderTrackShape? rangeTrackShape, RangeSliderValueIndicatorShape? rangeValueIndicatorShape, ShowValueIndicator? showValueIndicator, TextStyle? valueIndicatorTextStyle, double? minThumbSeparation, RangeThumbSelector? thumbSelector, MaterialStateProperty<
MouseCursor?> ? mouseCursor}) -
Create a SliderThemeData given a set of exact values.
const
- SliderThemeData.fromPrimaryColors({required Color primaryColor, required Color primaryColorDark, required Color primaryColorLight, required TextStyle valueIndicatorTextStyle})
-
Generates a SliderThemeData from three main colors.
factory
Properties
- activeTickMarkColor → Color?
-
The color of the track's tick marks that are drawn between the Slider.min
position and the current thumb position.
final
- activeTrackColor → Color?
-
The color of the Slider track between the Slider.min position and the
current thumb position.
final
- disabledActiveTickMarkColor → Color?
-
The color of the track's tick marks that are drawn between the Slider.min
position and the current thumb position when the Slider is disabled.
final
- disabledActiveTrackColor → Color?
-
The color of the Slider track between the Slider.min position and the
current thumb position when the Slider is disabled.
final
- disabledInactiveTickMarkColor → Color?
-
The color of the track's tick marks that are drawn between the current
thumb position and the Slider.max position when the Slider is
disabled.
final
- disabledInactiveTrackColor → Color?
-
The color of the Slider track between the current thumb position and the
Slider.max position when the Slider is disabled.
final
- disabledThumbColor → Color?
-
The color given to the thumbShape to draw itself with when the
Slider is disabled.
final
- hashCode → int
-
The hash code for this object.
read-onlyoverride
- inactiveTickMarkColor → Color?
-
The color of the track's tick marks that are drawn between the current
thumb position and the Slider.max position.
final
- inactiveTrackColor → Color?
-
The color of the Slider track between the current thumb position and the
Slider.max position.
final
- minThumbSeparation → double?
-
Limits the thumb's separation distance.
final
-
mouseCursor
→ MaterialStateProperty<
MouseCursor?> ? -
The cursor for a mouse pointer when it enters or is hovering over the
widget.
final
- overlappingShapeStrokeColor → Color?
-
The color given to the perimeter of the top rangeThumbShape when the
thumbs are overlapping and the top rangeValueIndicatorShape when the
value indicators are overlapping.
final
- overlayColor → Color?
-
The color of the overlay drawn around the slider thumb when it is
pressed, focused, or hovered.
final
- overlayShape → SliderComponentShape?
-
The shape that will be used to draw the Slider's overlay.
final
- rangeThumbShape → RangeSliderThumbShape?
-
The shape that will be used for the RangeSlider's thumbs.
final
- rangeTickMarkShape → RangeSliderTickMarkShape?
-
The shape that will be used to draw the RangeSlider's tick marks.
final
- rangeTrackShape → RangeSliderTrackShape?
-
The shape that will be used to draw the RangeSlider's track.
final
- rangeValueIndicatorShape → RangeSliderValueIndicatorShape?
-
The shape that will be used for the RangeSlider's value indicators.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
- showValueIndicator → ShowValueIndicator?
-
Whether the value indicator should be shown for different types of
sliders.
final
- thumbColor → Color?
-
The color given to the thumbShape to draw itself with.
final
- thumbSelector → RangeThumbSelector?
-
Determines which thumb should be selected when the slider is interacted
with.
final
- thumbShape → SliderComponentShape?
-
The shape that will be used to draw the Slider's thumb.
final
- tickMarkShape → SliderTickMarkShape?
-
The shape that will be used to draw the Slider's tick marks.
final
- trackHeight → double?
-
The height of the Slider track.
final
- trackShape → SliderTrackShape?
-
The shape that will be used to draw the Slider's track.
final
- valueIndicatorColor → Color?
-
The color given to the valueIndicatorShape to draw itself with.
final
- valueIndicatorShape → SliderComponentShape?
-
The shape that will be used to draw the Slider's value
indicator.
final
- valueIndicatorTextStyle → TextStyle?
-
The text style for the text on the value indicator.
final
Methods
-
copyWith(
{double? trackHeight, Color? activeTrackColor, Color? inactiveTrackColor, Color? disabledActiveTrackColor, Color? disabledInactiveTrackColor, Color? activeTickMarkColor, Color? inactiveTickMarkColor, Color? disabledActiveTickMarkColor, Color? disabledInactiveTickMarkColor, Color? thumbColor, Color? overlappingShapeStrokeColor, Color? disabledThumbColor, Color? overlayColor, Color? valueIndicatorColor, SliderComponentShape? overlayShape, SliderTickMarkShape? tickMarkShape, SliderComponentShape? thumbShape, SliderTrackShape? trackShape, SliderComponentShape? valueIndicatorShape, RangeSliderTickMarkShape? rangeTickMarkShape, RangeSliderThumbShape? rangeThumbShape, RangeSliderTrackShape? rangeTrackShape, RangeSliderValueIndicatorShape? rangeValueIndicatorShape, ShowValueIndicator? showValueIndicator, TextStyle? valueIndicatorTextStyle, double? minThumbSeparation, RangeThumbSelector? thumbSelector, MaterialStateProperty< MouseCursor?> ? mouseCursor}) → SliderThemeData - Creates a copy of this object but with the given fields replaced with the new values.
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent 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
-
toStringShort(
) → String -
A brief description of this object, usually just the runtimeType and the
hashCode.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
override
Static Methods
-
lerp(
SliderThemeData a, SliderThemeData b, double t) → SliderThemeData - Linearly interpolate between two slider themes.