我正在实现一个应用程序的空状态屏幕，但它在第二次返回片段后崩溃。
当应用程序第一次启动时，它正确地创建了我的视图，但当我向以前的列表添加一些东西时（主片段-〉注册文档片段（为我的回收列表创建新项目）-〉主片段），它在下面的行中崩溃：

binding.imageEmptyState.hide()

从以下函数：

private fun configDataCollector() = lifecycleScope.launch {
    viewModel.list.collectLatest { result->
        when(result) {
            is ResourceState.Success -> {
                binding.imageEmptyState.hide()
                binding.textEmptyState.hide()
                result.data?.let { values ->
                    adapterDoc.docs = values.toList()
                }
            }
            is ResourceState.Empty -> {
                binding.imageEmptyState.show()
                binding.textEmptyState.show()
            }
            else -> { }
        }
    }
}

收货：

2023-01-04 11:55:35.905 14014-14014/com.tods.docreminder E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.tods.docreminder, PID: 14014
java.lang.NullPointerException
    at com.tods.docreminder.feature.doc.presentation.util.BaseFragment.getBinding(BaseFragment.kt:13)
    at com.tods.docreminder.feature.doc.presentation.doc.MainFragment.access$getBinding(MainFragment.kt:34)
    at com.tods.docreminder.feature.doc.presentation.doc.MainFragment$configDataCollector$1$1.invokeSuspend(MainFragment.kt:255)

我的资源状态类：

sealed class ResourceState<T>(
    val data: T? = null,
    val message: String? = null
) {
    class Success<T>(data: T?): ResourceState<T>(data)
    class Error<T>(message: String?, data: T? = null): ResourceState<T>(data, message)
    class Loading<T>: ResourceState<T>()
    class Empty<T>: ResourceState<T>()
}

碱基片段：

abstract class BaseFragment<VB: ViewBinding, VM: ViewModel>: Fragment() {
    private var _binding: VB? = null
    protected val binding get() = _binding!!
    protected abstract val viewModel: VM

    override fun onCreateView
                (inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        _binding = recoverViewBinding(inflater, container)
        return binding.root
    }

    override fun onDestroyView() {
        super.onDestroyView()
        _binding = null
    }

    protected abstract fun recoverViewBinding(inflater: LayoutInflater, container: ViewGroup?): VB
}

为什么会发生在这种情况下？
谢谢你的帮助，如果需要任何其他代码，我会尽快编辑的问题。