Widget _setCurrentIndexToTabBar(BuildContext context) {
    return SizedBox(
      height: 200,
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          Expanded(
              child: PageView(
            children: const [
              Center(
                child: TDText('页面1,手指左滑查看页面2'),
              ),
              Center(
                child: TDText('页面2,手指右滑查看页面1'),
              ),
            ],
            onPageChanged: (index) {
              setState(() {
                // 修改选择index
                currentIndex = index;
              });
            },
          )),
          TDBottomTabBar(
            // 设置选择index
              currentIndex: currentIndex,
              TDBottomTabBarBasicType.icon,
              useVerticalDivider: true,
              navigationTabs: [
                TDBottomTabBarTabConfig(
                    selectedIcon: _selectedIcon,
                    unselectedIcon: _unSelectedIcon,
                    onTap: () {
                      onTapTab(context, '标签1');
                    }),
                TDBottomTabBarTabConfig(
                    selectedIcon: _selectedIcon,
                    unselectedIcon: _unSelectedIcon,
                    onTap: () {
                      onTapTab(context, '标签2');
                    })
              ])
        ],
      ),
    );
  }