attach method

@override void attach(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

@override
void attach(ScrollPosition position) {
  if (position.hasPixels &&
      position is _MultiStateSheetScrollPosition &&
      position._extent.availablePixels > 0.0) {
    _extent.isEnabled = true;
  }
  super.attach(position);
}