getPreferredSize method

  1. @override
Size getPreferredSize({
  1. required AnnotatedSliderThemeData sliderTheme,
  2. bool isEnabled = false,
})
override

Implementation

@override
Size getPreferredSize({
  required AnnotatedSliderThemeData sliderTheme,
  bool isEnabled = false,
}) {
  assert(sliderTheme.trackHeight != null);
  return Size.fromRadius(tickMarkRadius ?? sliderTheme.trackHeight! / 4);
}