NestedListView constructor
      
      NestedListView({ 
    
    
- Key? key,
- Axis scrollDirection = Axis.vertical,
- bool reverse = false,
- ScrollController? controller,
- bool? primary,
- ScrollPhysics? physics,
- bool shrinkWrap = false,
- EdgeInsetsGeometry? padding,
- double? itemExtent,
- ItemExtentBuilder? itemExtentBuilder,
- Widget? prototypeItem,
- bool addAutomaticKeepAlives = true,
- bool addRepaintBoundaries = true,
- bool addSemanticIndexes = true,
- double? cacheExtent,
- List<Widget> children = const <Widget>[],
- int? semanticChildCount,
- DragStartBehavior dragStartBehavior = DragStartBehavior.start,
- ScrollViewKeyboardDismissBehavior keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual,
- String? restorationId,
- Clip clipBehavior = Clip.hardEdge,
- HitTestBehavior hitTestBehavior = HitTestBehavior.opaque,
- bool wantKeepAlive = true,
Implementation
NestedListView({
  super.key,
  super.scrollDirection,
  super.reverse,
  super.controller,
  super.primary,
  super.physics,
  super.shrinkWrap,
  super.padding,
  super.itemExtent,
  super.itemExtentBuilder,
  super.prototypeItem,
  super.addAutomaticKeepAlives,
  super.addRepaintBoundaries,
  super.addSemanticIndexes,
  super.cacheExtent,
  super.children,
  super.semanticChildCount,
  super.dragStartBehavior,
  super.keyboardDismissBehavior,
  super.restorationId,
  super.clipBehavior,
  super.hitTestBehavior,
  this.wantKeepAlive = true,
});