以前写过一篇 Navigation 导致内存泄漏的文章 Android 解决XXX Layout leaked 使用Navigation 踩坑 XML内存泄漏
，这次算补充吧。
场景是 当一个有RecyclerView的页面跳转的时候发生内存泄漏的
还是先上报错图

最后是指向的adapter
先看错误代码

class HomeFragment : Fragment() {
    private var _binding: FragmentHomeBinding? = null
    private val binding get() = _binding!!
    private var taskAdapter: TaskAdapter? = null

    private var tasks = mutableListOf<String>()
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        _binding = FragmentHomeBinding.inflate(inflater, container, false)
        return binding.root
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        loadTask()
        observeData()
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        initView()
    }

    private fun loadTask() {}
    private fun observeData() {}
    private fun initView() {
        taskAdapter = TaskAdapter()
        binding.homeTaskList.layoutManager = GridLayoutManager(requireContext(), 3)
        binding.homeTaskList.adapter =   taskAdapter?.apply {
            isAnimationFirstOnly = false
            setAnimationWithDefault(BaseQuickAdapter.AnimationType.ScaleIn)
            setOnItemClickListener { _, _, position ->
                findNavController().navigate(HomeFragmentDirections.actionHomeToCollect(position))
            }
        }
 
            taskAdapter?.setList(tasks)
    }


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

错误原因分析：
因为上一篇博文写的经历，我首先想到的是，页面跳转的时候，fragment 对象还在，但是View被回收，估计是有哪个View的引用被Fragment持有了，销毁不掉造成的，然后来看一下泄漏描述，最后

recyclerViewOrNull是我的Adapter 继承得来的
而recyclerViewOrNull 源码中是这样的

那就很直观了 这就是关联的哪个RecyclerView
和一开始猜的一样Adapter持有了RecyclerView,界面跳转，RecyclerView销毁,Adapter持有、销毁不了，然后内存泄漏，那就简单了
解决方法就是在onDestroyView 加一个置为null就可以了

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