detach method Null safety

void detach(
  1. ScrollPosition position
)

Unregister the given position with this controller.

After this function returns, the animateTo and jumpTo methods on this controller will not manipulate the given position.

Implementation

void detach(ScrollPosition position) {
  assert(_positions.contains(position));
  position.removeListener(notifyListeners);
  _positions.remove(position);
}