In my app i want to set DraggableScrollSheet in google map view but i want to set sheet size as per content size but it not work. when i open a scrollsheet it show white space. and the view is not write so i want to set the scrollsheet height as per content height.

DraggableScrollableSheet(
              expand: true,
              snap:false,
              minChildSize: 0.1,
              //maxChildSize: 0.5,
              controller: sheetController,
              builder: (BuildContext context, scrollController) {
              return Container(
                color: white,
                child: CustomScrollView(
                  controller: scrollController,
                  slivers: [
                    SliverToBoxAdapter(
                      child: Center(
                        child: Container(
                          decoration: BoxDecoration(
                            color: Theme.of(context).hintColor,
                            borderRadius: const BorderRadius.all(Radius.circular(10)),
                          ),
                          height: 4,
                          width: 40,
                          margin: const EdgeInsets.symmetric(vertical: 10),
                        ),
                      ),
                    ),

                    SliverToBoxAdapter(
                     child: _panel()
                    )
                  ],

                ),
              );
          })