getPreferredSize abstract method

Size getPreferredSize(
  1. {required SliderThemeData sliderTheme,
  2. bool isEnabled}

Returns the preferred size of the shape.

It is used to help position the tick marks within the slider.

The sliderTheme argument is the theme assigned to the RangeSlider that this shape belongs to.

The isEnabled argument is false when RangeSlider.onChanged is null and true otherwise. When true, the slider will respond to input.


Size getPreferredSize({
  required SliderThemeData sliderTheme,
  bool isEnabled,