Please dispose all AnimationControllers

[Eerey]

drop_down_body.dart

My proposal:

  @override
  void dispose() {
    _animationController.dispose();
    _triangleController.dispose();
    _scrollController.dispose();
    for (final anim in _DCController) {
      anim.dispose();
    }
    super.dispose();
  }

[Eerey]

Also, there are two list of animation controllers that are basically the same:

final List _DCController = []; final List _paddingController = [];

It's hard to follow the logic if both lists have the same objects.

[joo6077]

Yeah I need to refactory this old code. I have been planned to refactory overall of this library soon.

Thank you for letting me know tho!