circle_build.dart

  Widget buildScaffoldBody() => Scaffold(
        key: scaffoldKey,
        body: BlocConsumer<PointsCubit, PointsState>(
          listener: (context, state) {
            if (state.runtimeType == PointsError) {
              scaffoldKey.currentState
                  .showSnackBar(SnackBar(content: Text("Error")));
            }
          },
          builder: (context, state) {
            switch (state.runtimeType) {
              case PointsLoading:
                return CircularProgressIndicator();
              case PointsCompleted:
                return pointAndPlaceView(state, context);
              case PointsError:
                return Text((state as PointsError).message);
              default:
                fetchPoints(context);
                return CircularProgressIndicator();
            }
          },
        ),
      );