in lib/studies/shrine/expanding_bottom_sheet.dart [638:669]
void _updateLists() {
// Update _internalList based on the model
_internalList =
ScopedModel.of<AppStateModel>(context).productsInCart.keys.toList();
final internalSet = Set<int>.from(_internalList);
final listSet = Set<int>.from(_list.list);
final difference = internalSet.difference(listSet);
if (difference.isEmpty) {
return;
}
for (final product in difference) {
if (_internalList.length < _list.length) {
_list.remove(product);
} else if (_internalList.length > _list.length) {
_list.add(product);
}
}
while (_internalList.length != _list.length) {
var index = 0;
// Check bounds and that the list elements are the same
while (_internalList.isNotEmpty &&
_list.length > 0 &&
index < _internalList.length &&
index < _list.length &&
_internalList[index] == _list[index]) {
index++;
}
}
}