我用了这个方法，它对我很有效
只需在MainFragment中使用ViewPager2，如以下代码所示

val adapter =ViewPagerAdapter(childFragmentManager,lifecycle)
 adapter.addFragment(TabAFragment(),"A")
 adapter.addFragment(TabAFragment(),"B")
 adapter.addFragment(TabAFragment(),"C")
 binding.viewpager.adapter =adapter
 adapter.notifyDataSetChanged()

然后在导航图中创建一条从MainFragment到DetailsFragment的路径
在ViewPager片段（如TabAFragment）中，只需从MainFragment导航到DetailsFragment即可
别忘了添加一个适配器，如下所示

class ViewPagerAdapter (manager: FragmentManager, lifecycle: Lifecycle) :  FragmentStateAdapter(manager,lifecycle ){
    private val fragmentList : MutableList<Fragment> =ArrayList()
    private val titleList : MutableList<String> =ArrayList()
    override fun getItemCount(): Int {
        return fragmentList.size
    }

    override fun createFragment(position: Int): Fragment {
        return  fragmentList[position]
    }

    fun addFragment(fragment: Fragment, title: String){
        fragmentList.add(fragment)
        titleList.add(title)
    }

    fun getPageTitle(position: Int): CharSequence? {
        return titleList[position]
    }
}

最后在你的DetailsFragment中使用下面的代码来完成当前的片段

findNavController().popBackStack()