如何在颤动中禁用bottomNavigationBar中的标签空间

import 'package:shimmer/shimmer.dart';

bool showShimmer = true;

BottomNavigationBar(
  items: [
    BottomNavigationBarItem(
      icon: showShimmer ? Shimmer.fromColors(
        child: Icon(Icons.home),
        baseColor: Colors.grey[300],
        highlightColor: Colors.grey[100],
      ) : Icon(Icons.home),
      label: 'Home',
    ),
    // 其他BottomNavigationBarItem
  ],
)

setState(() {
  showShimmer = false;
});