Ustawienie domyślniej karty i po wyjściu z aplikacji przechodzę do szczegółu podanej karty

Witam,
Mam pewien problem, chodzi o to ze już zrobiłam ustawianie domyślnej karty w adapterze. Teraz chciałabym zrobic tak ze jak wychodzę z aplikacji chciałabym zeby nie pokazła mi się lista kart ale zaznaczona od razu karta ze szczegółami tej karty.

pu```
blic class CardAdapter extends RecyclerView.Adapter<CardAdapter.CardViewHolder> {

private static int lastCheckedPos = 0;

private Card card;
private Context mContext;
private ArrayList<Card> cardsList = new ArrayList<Card>();
private MySharedPreference mySharedPreference;

public CardAdapter(Context mContext, ArrayList<Card> cardsList) {
    this.mContext = mContext;
    this.cardsList = cardsList;
    notifyDataSetChanged();
}

@Override
public CardViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_card, parent, false);
    return new CardViewHolder(view);
}

@Override
public void onBindViewHolder(final CardViewHolder holder, final int position) {
    card = cardsList.get(position);
    mySharedPreference = new MySharedPreference();
    holder.nameCard.setText(card.getNameCard());
    holder.setDate.setText(card.getCreateDate());
    holder.expirationDate.setText(card.getExpirationDate());

    if (position == lastCheckedPos) {
        holder.cardView.setBackgroundResource(R.drawable.style_card_shadow);
        holder.cardView.setCardBackgroundColor(Color.RED);
    } else {
        holder.cardView.setCardBackgroundColor(Color.WHITE);
    }

    holder.menu.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            final PopupMenu popupMenu = new PopupMenu(mContext, holder.menu);
            popupMenu.inflate(R.menu.cardmenu);
            popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                @Override
                public boolean onMenuItemClick(MenuItem item) {

                    Typeface custom_fonts = Typeface.createFromAsset(mContext.getAssets(), "fonts/OpenSans-Regular.ttf");
                    Typeface custom_fonts_Bold = Typeface.createFromAsset(mContext.getAssets(), "fonts/OpenSans-Bold.ttf");

                    switch (item.getItemId()) {
              
                        case R.id.defaultCard:

                            int currnetPosition = position;
                            int prePos = lastCheckedPos;
                            lastCheckedPos = position;
                            notifyItemChanged(prePos);
                            notifyItemChanged(lastCheckedPos);

                            break;
                        default:
                            break;
                    }
                    return false;
                }
            });
            popupMenu.show();
        }
    });

}

@Override
public int getItemCount() {
    return (cardsList == null) ? 0 : cardsList.size();
}


public class CardViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

    Typeface custom_fonts = Typeface.createFromAsset(itemView.getContext().getAssets(), "fonts/OpenSans-Regular.ttf");
    private ImageView menu;
    private CardView cardView;
    private TextView nameCard, setDate, expirationDate, dateText, expirationText, numberCard;


    public CardViewHolder(View itemView) {
        super(itemView);


        nameCard = (TextView) itemView.findViewById(R.id.nameCard);
        nameCard.setTypeface(custom_fonts);

        setDate = (TextView) itemView.findViewById(R.id.setDateText);
        setDate.setTypeface(custom_fonts);

        expirationDate = (TextView) itemView.findViewById(R.id.setDateExpirationText);
        expirationDate.setTypeface(custom_fonts);

        dateText = (TextView) itemView.findViewById(R.id.dateText);
        dateText.setTypeface(custom_fonts);

        expirationText = (TextView) itemView.findViewById(R.id.dateExpiration);
        expirationText.setTypeface(custom_fonts);

        menu = (ImageView) itemView.findViewById(R.id.menu);

        cardView = (CardView) itemView.findViewById(R.id.cardView);
        cardView.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        int position = getAdapterPosition();


        Card cardDetails = cardsList.get(position);

        Intent start = new Intent(mContext, CardDetailsActivity.class);
        start.putExtra("cardName", cardDetails.getNameCard());
        start.putExtra("path", cardDetails.getPath3());
        start.putExtra("intervalTotp", cardDetails.getInvertalTotp());
        start.putExtra("otp", cardDetails.getOTP());
        v.getContext().startActivity(start);

    }
}

}