build method

Widget build(
  1. BuildContext context,
  2. double dragOffset,
  3. double dragExtent
)

Implementation

@pragma('vm:prefer-inline')
Widget build(BuildContext context, double dragOffset, double dragExtent) {
  return builder?.call(context, dragOffset, dragExtent, child) ??
      child ??
      const SizedBox.shrink();
}