createBlurFilterAnimation method

Animation<double>? createBlurFilterAnimation()

Implementation

Animation<double>? createBlurFilterAnimation() {
  // ignore: unnecessary_null_comparison
  if (richbar.backgroundOpaque == null) return null;
  return Tween(begin: 0.0, end: richbar.backgroundOpaque).animate(
    CurvedAnimation(
      parent: _animationController!,
      curve: const Interval(
        0.0,
        0.35,
        curve: Curves.easeInOutCirc,
      ),
    ),
  );
}