build method

  1. @override
Widget build(
  1. BuildContext context,
  2. Widget child,
  3. AnimationController controller,
  4. EffectEntry entry,
)
override

Builds the widgets necessary to implement the effect, based on the provided AnimationController and EffectEntry.

Implementation

@override
Widget build(
  BuildContext context,
  Widget child,
  AnimationController controller,
  EffectEntry entry,
) {
  Animation<double> animation = entry.buildAnimation(controller);
  return getOptimizedBuilder<double>(
    animation: animation,
    builder: (_, __) => DecoratedBox(
      decoration: BoxDecoration(
        boxShadow: [BoxShadow.lerp(begin, end, animation.value)!],
        borderRadius: borderRadius,
      ),
      child: child,
    ),
  );
}