SliverOverlapAbsorber being able to accept multiple slivers

The workaround I found is to create multiple NestedScrollView and use Builder widget as the body to get proper BuildContext. This workaround may not be the best and will messed up your code, but it solved my issue for now.

This is what I want to achieve:

• My Case
• Result as GIF

This is my code:

class OrderPage extends StatelessWidget {
  Widget build(BuildContext context) {
    return Scaffold(
      body: DefaultTabController(
        length: 3,

        /// First level of [NestedScrollView]
        child: NestedScrollView(
          headerSliverBuilder: (_, __) => [],

          /// Use [Builder] to get the [BuildContext]
          /// Name the variable of context as contextNestedOne
          body: Builder(
            builder: (contextNestedOne) {

              /// Second level of [NestedScrollView]
              return NestedScrollView(

                /// Name the variable of context as contextNestedTwo
                headerSliverBuilder: (contextNestedTwo, innerBoxIsScrolled) {
                  return [
                    SliverOverlapAbsorber(
                      handle: NestedScrollView.sliverOverlapAbsorberHandleFor(
                        
                        /// Use contextNestedOne
                        contextNestedOne,
                      ),
                      sliver: SliverAppBar(
                        title: Text('My Orders'),
                        elevation: 0,
                      ),
                    ),
                    SliverOverlapAbsorber(
                      handle: NestedScrollView.sliverOverlapAbsorberHandleFor(

                        /// Use contextNestedTwo
                        contextNestedTwo,
                      ),
                      sliver: SliverAppBar(
                        primary: false,
                        pinned: true,
                        automaticallyImplyLeading: false,
                        titleSpacing: 0.0,
                        elevation: innerBoxIsScrolled ? 4 : 0,
                        title: TabBar(
                          labelColor: Colors.black,
                          tabs: <Widget>[
                            Tab(text: 'Delivered'),
                            Tab(text: 'Processing'),
                            Tab(text: 'Cancelled'),
                          ],
                        ),
                      ),
                    ),
                  ];
                },

                /// Use [Builder] to get the [BuildContext]
                /// Name the variable of context as contextNestedTwo
                body: Builder(
                  builder: (contextNestedTwo) {
                    return CustomScrollView(
                      slivers: <Widget>[
                        SliverOverlapInjector(
                          handle:
                              NestedScrollView.sliverOverlapAbsorberHandleFor(

                            /// Use contextNestedOne
                            contextNestedOne,
                          ),
                        ),
                        SliverOverlapInjector(
                          handle:
                              NestedScrollView.sliverOverlapAbsorberHandleFor(

                            /// Use contextNestedOne
                            contextNestedTwo,
                          ),
                        ),
                        SliverToBoxAdapter(
                          child: Container(
                            height: 200,
                            color: Colors.blue,
                            child: Text('My Orders Body'),
                          ),
                        ),
                      ],
                    );
                  },
                ),
              );
            },
          ),
        ),
      ),
    );
  }
}