CustomEffect constructor

const CustomEffect({
  1. Duration? delay,
  2. Duration? duration,
  3. Curve? curve,
  4. double? begin,
  5. double? end,
  6. required CustomEffectBuilder builder,
})

Implementation

const CustomEffect({
  super.delay,
  super.duration,
  super.curve,
  double? begin,
  double? end,
  required this.builder,
}) : super(
        begin: begin ?? 0.0, // Should this use "smart" defaults?
        end: end ?? 1.0,
      );