Widget _buildIconNumberBadge(BuildContext context) {
    return Container(
        alignment: Alignment.bottomLeft,
        margin: const EdgeInsets.only(left: 16),
        child: SizedBox(
          width: 42,
          height: 36,
          child: Stack(
            alignment: Alignment.bottomLeft,
            children: [
              Icon(TDIcons.notification),
              Positioned(
                child: TDBadge(
                  TDBadgeType.message,
                  count: '8',
                ),
                left: 18,
                bottom: 18,
              )
            ],
          ),
        ));
  }