第二次加载时碎片为空

应用程序的导航是通过 BottomNavigationView fragment ,始终为空。

下面是我的片段管理的样子:

fun navigateTo(
            context: Context,
            fragment: BaseFragment,
            navigatable: Navigatable,
            addToBackStack: Boolean
    ) {
        val activity = ContextUtil.getActivityFromContext(context)
        val tag = fragment.javaClass.toString()
        val fragmentManager = (activity as BaseActivity).supportFragmentManager
        val transaction = fragmentManager.beginTransaction()
        if (fragmentManager.findFragmentByTag(fragment.javaClass.toString()) == null) {
            transaction.add(R.id.container, fragment, tag).hide(fragment)
        }
        val activeFragment = findVisibleFragment(context)
        transaction
                .apply {
                    if (activeFragment != null) {
                        hide(activeFragment)
                    }
                }
                .show(fragment)
                .apply {
                    if (addToBackStack) {
                        this.addToBackStack(tag)
                    }
                }
                .commit()
        navigatable.afterScreenTransition(fragment).invoke()
    }

onAttach() 在我的房间里被叫来 pager fragment ,但所有视图都为空, onCreateView() 没有打电话。