RecyclerView doesnt keep its scroll position when I submitting same list with different order

Question

I'm using ListAdapter to show my device music on the screen. From option menu user can change the tracks order. When user changes the track order the recycler view shows updated list but also changes its scroll position.

Can you help me to avoid changing scroll position?

Here is my code:

1. Fragment with recycler view.

   class TabSongsFrg : Fragment() {
   
   private lateinit var binding: FragmentTabSongsBinding
   private lateinit var viewModelFactory: TabSongsViewModelFactory
   private lateinit var viewModel: TabSongsViewModel
   
   private lateinit var tabSongsRva: TabSongsRva
   
    override fun onCreateView(
    inflater: LayoutInflater, container: ViewGroup?,
    savedInstanceState: Bundle?
    ): View {
    try {
        if (!this::binding.isInitialized) {
            binding = FragmentTabSongsBinding.inflate(inflater)
   
            val application = requireNotNull(activity).application
            viewModelFactory = TabSongsViewModelFactory(application, context)
            viewModel =
                ViewModelProvider(this, viewModelFactory)[TabSongsViewModel::class.java]
   
            binding.lifecycleOwner = this
            binding.viewModel = viewModel
   
            tabSongsRva =
                TabSongsRva(context, TabSongsRva.OnClickListener { objects ->
   
                })
            binding.tabSongsRecyclerView.adapter = tabSongsRva
        }
    } catch (e: Exception) {
        firebaseCrashlytics.recordException(e)
    }
   
    return binding.root
    }
   
    private fun prepareToScanMedia() {
    try {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (context.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                context.checkPermission()
                return
            }
        }
   
        val tracksInfo = getAllTracks()
        viewModel.setTracksList(tracksInfo)
    } catch (e: Exception) {
        firebaseCrashlytics.recordException(e)
    }
   }
   
    fun getAllTracks(): ArrayList<TrackInfo> {
    val allTracksInfo: ArrayList<TrackInfo> = ArrayList()
   
    try {
        val selection = MediaStore.Audio.Media.IS_MUSIC + " != 0"
        val sortOrder = getTracksSortOrder()
   
        val music = context.contentResolver.query(
            EXTERNAL_CONTENT_URI,
            projectionMedia,
            selection,
            null,
            sortOrder
        )
   
        while (music!!.moveToNext()) {
            val trackInfo = TrackInfo()
            trackInfo.artist = music.getString(0)
            trackInfo.title = music.getString(1)
            trackInfo.data = music.getString(2)
            trackInfo.displayName = music.getString(3)
            trackInfo.duration = music.getLong(4)
            trackInfo.album = music.getString(5)
            trackInfo.size = music.getLong(6)
            trackInfo.albumId = music.getInt(7)
            trackInfo.artistId = music.getInt(8)
            trackInfo.trackId = music.getInt(9)
            trackInfo.year = music.getInt(10)
            trackInfo.mimeType = music.getString(11)
            trackInfo.photoUri = getTrackAlbumArt(trackInfo.albumId)
   
            allTracksInfo.add(trackInfo)
        }
    } catch (e: Exception) {
        firebaseCrashlytics.recordException(e)
    }
   
    return allTracksInfo
   }
   }
   

2. ViewModel class

       class TabSongsViewModel(app: Application, private val context: PrepareActivity) :
       AndroidViewModel(app) {
   
       private val _tracksInfo = MutableLiveData<ArrayList<TrackInfo>>()
       val tracksInfo: LiveData<ArrayList<TrackInfo>>
           get() = _tracksInfo
   
   
       fun setTracksList(tracksInfo: ArrayList<TrackInfo>) {
          try {
                _tracksInfo.value = tracksInfo
          } catch (e: Exception) {
                 firebaseCrashlytics.recordException(e)
           }
         }
       }
   

3. Adapter

        class TabSongsRva(
        private val onClickListener: OnClickListener
        ) :
        ListAdapter<TrackInfo, TabSongsRva.MarsPropertyViewHolder> 
        (DiffCallback) {
   
          class MarsPropertyViewHolder(
         private var bindingGrid: TrackGridCellBinding
       ) :
    RecyclerView.ViewHolder(bindingGrid.root) {
    fun bind(trackInfo: TrackInfo) {
   
            bindingGrid.trackInfo = trackInfo
            bindingGrid.executePendingBindings()
    }
   }
   
    companion object DiffCallback : DiffUtil.ItemCallback<TrackInfo>() {
    override fun areItemsTheSame(oldItem: TrackInfo, newItem: 
    TrackInfo): Boolean {
        return oldItem.trackId == newItem.trackId
    }
   
    override fun areContentsTheSame(oldItem: TrackInfo, newItem: 
      TrackInfo): Boolean {
        return oldItem.trackId == newItem.trackId
    }
   }
   
    override fun onCreateViewHolder(
    parent: ViewGroup,
    viewType: Int
     ): MarsPropertyViewHolder {
   
    return MarsPropertyViewHolder(
        TrackGridCellBinding.inflate(
            LayoutInflater.from(parent.context),
            parent,
            false
        )
    )
    }
   
   override fun onBindViewHolder(holder: MarsPropertyViewHolder, 
    position: Int) {
    val trackInfo = getItem(position)
   
    holder.itemView.setOnClickListener {
        disableView(holder.itemView)
        val objects = arrayOf<Any>(position, trackInfo)
        onClickListener.onClick(objects)
        }
   
       holder.bind(trackInfo)
      }
   
       class OnClickListener(val clickListener: (objects: Array<Any>) -> 
       Unit)      {
        fun onClick(objects: Array<Any>) = clickListener(objects)
        }
      }
   

4. Layout File

    <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/tabSongsRecyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layoutAnimation="@anim/layout_fall_down"
            android:paddingLeft="3dp"
            android:paddingRight="3dp"
            android:scrollbarSize="4dp"
            android:scrollbarThumbVertical="@drawable/custom_scrollbar"
            android:scrollbars="vertical"
            app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"
            app:tabSongsTracksList="@{viewModel.tracksInfo}"
            tools:listitem="@layout/track_list_cell" />