attach method

void attach(
  1. ScrollPosition position
)

Register the given position with this controller.

After this function returns, the animateTo and jumpTo methods on this controller will manipulate the given position.

Implementation

void attach(ScrollPosition position) {
  assert(!_positions.contains(position));
  _positions.add(position);
  position.addListener(notifyListeners);
  onAttach?.call(position);
}