1-) Android RMOS - RecyclerView notifyDataSetChanged da  scroll aynı kalması için

private Parcelable recyclerViewState;
public void dovizListele(List<GenelDovizModel> genelDovizModels) {

    RecyclerView.LayoutManager layoutManager = recyclerPiyasalar.getLayoutManager();
    if (layoutManager != null ) {
        recyclerViewState = recyclerPiyasalar.getLayoutManager().onSaveInstanceState();
    }

    PiyasaAdapter piyasaAdapter = new PiyasaAdapter(piyasaController.tip, genelDovizModels, new BankaClick() {
        @Override
        public void onItemClick(GenelDovizModel item, int index) {

        }
    });
...

...

...
    piyasaAdapter.notifyDataSetChanged();
   
    layoutManager = recyclerPiyasalar.getLayoutManager();
    if (layoutManager != null) {
            recyclerPiyasalar.getLayoutManager().onRestoreInstanceState(recyclerViewState);
    }

}

2-)İKİNCİ YOL BU TAM EKRAN İTEMİNE GÖRE DÜZENLEME YAPAR

 int lastFirstVisiblePosition = 0;

 public void dovizListele() {

        RecyclerView.LayoutManager layoutManager = recyclerPiyasalar.getLayoutManager();

        if (layoutManager != null && layoutManager instanceof LinearLayoutManager) {
            lastFirstVisiblePosition = ((LinearLayoutManager) recyclerPiyasalar.getLayoutManager()).findFirstCompletelyVisibleItemPosition();
        }
              ...

...

...
               piyasaAdapter.notifyDataSetChanged();
    
        layoutManager = recyclerPiyasalar.getLayoutManager();
        if (layoutManager != null) {
            int count = layoutManager.getItemCount();
            if (lastFirstVisiblePosition != RecyclerView.NO_POSITION && lastFirstVisiblePosition < count) {
                layoutManager.scrollToPosition(lastFirstVisiblePosition);
            }
        }
    }