RoundSliderOverlayShape class Null safety
The default shape of a Slider's thumb overlay.
The shape of the overlay is a circle with the same center as the thumb, but with a larger radius. It animates to full size when the thumb is pressed, and animates back down to size 0 when it is released. It is painted behind the thumb, and is expected to extend beyond the bounds of the thumb so that it is visible.
The overlay color is defined by SliderThemeData.overlayColor.
See also:
- Slider, which includes an overlay defined by this shape.
- SliderTheme, which can be used to configure the overlay shape of all sliders in a widget subtree.
- Inheritance
-
- Object
- SliderComponentShape
- RoundSliderOverlayShape
Constructors
- RoundSliderOverlayShape({double overlayRadius = 24.0})
-
Create a slider thumb overlay that draws a circle.
const
Properties
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- overlayRadius → double
-
The preferred radius of the round thumb shape when enabled.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
Methods
-
getPreferredSize(
bool isEnabled, bool isDiscrete) → Size -
Returns the preferred size of the shape, based on the given conditions.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
-
paint(
PaintingContext context, Offset center, {required Animation< double> activationAnimation, required Animation<double> enableAnimation, required bool isDiscrete, required TextPainter labelPainter, required RenderBox parentBox, required SliderThemeData sliderTheme, required TextDirection textDirection, required double value, required double textScaleFactor, required Size sizeWithOverflow}) → void -
Paints the shape, taking into account the state passed to it.
override
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited