how to get all values added to recyclerview and send it to ion lib

Question

so im trying to get recyclerview data list added and send it to ion lib when i use method below i only get one element as ill have to change string inside for() to String fav =null ouside of for() and log.d only shows the last result. i need get all so i can send to senddata() to ion lib

FavModelClass

private String fav; private String user_id;

public FavModelClass(String fav, String user_id) {
    this.fav = fav;
    this.user_id = user_id;
}

public String getFav() {
    return fav;
}

public void setFav(String fav) {
    this.fav = fav;
}

public String getUser_id() {
    return user_id;
}

public void setUser_id(String user_id) {
    this.user_id = user_id;
}
}

adapter

 public class FavAdapter extends 
 RecyclerView.Adapter<FavAdapter .MyViewHolder> {

private List<FavModelClass> favModelClassList;
private Context beddingContext;

public FavAdapter (List<FavModelClass> favModelClassList, Context 
beddingContext) {
    this.favModelClassList= favModelClassList;
    this.beddingContext = beddingContext;
}

@NonNull
@Override
public FavAdapter.MyViewHolder onCreateViewHolder(@NonNull ViewGroup 
    parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.amenitylayout,parent,false);
    FavAdapter .MyViewHolder holder = new FavAdapter .MyViewHolder(view);
    return holder;
}



@Override
public void onBindViewHolder(@NonNull FavAdapter.MyViewHolder holder, int i) {
    final FavModelClassdata = favModelClassList.get(i);
    holder.ac_bedding_type.setText(data.getFav()+" "+"MAX:"+data.getUser_id());

    holder.delete_entry.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            removeAt(holder.getAdapterPosition());
        }
    });


}

public void removeAt(int position) {
    favModelClassList.remove(position);
    notifyItemRemoved(position);
    notifyItemRangeChanged(position, favModelClassList.size());
}

@Override
public int getItemCount() {
    return favModelClassList.size();
}

public class MyViewHolder extends RecyclerView.ViewHolder {

    private TextView ac_bedding_type;
    private ImageButton delete_entry;
    public MyViewHolder(@NonNull View v) {
        super(v);

        ac_bedding_type = v.findViewById(R.id.ac_amenity_name);
        delete_entry = v.findViewById(R.id.delete_amenity_entry);
    }
}
}

Main activity

 fav_recycler = findViewById(R.id.fave_recycler);
    GridLayoutManager layoutManager1 = new GridLayoutManager(getApplicationContext(), 2,GridLayoutManager.VERTICAL, false);
    fav_recycler.setHasFixedSize(true);
    fav_recycler.setLayoutManager(layoutManager1);
    favModelClassList= new ArrayList<>();

    addfavamenity.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            favModelClassList.add(new FavModelClass(
                    amenityET.getText().toString(),
                    user_idET.getText().toString()
            ));

            amenityET.setText("");
            user_idET.setText("");
            FavAdapter adapter = new FavAdapter (favModelClassList, getApplicationContext());
            adapter.notifyDataSetChanged();
            fav_recycler.setAdapter(adapter);


            for (int i = 0; i < favModelClassList.size(); i++) {
                final FavModelClassList data = favModelClassList.get(i);
                final String fav= data.getFav();
                final String user_id = data.getUser_id();

              Log.d(TAG, "onClick: "+ fav);

            }



        }
    });

Answer 1

ArrayList d = new ArrayList();

for (int i = 0; i < favModelClassList.size(); i++) {
    final FavModelClassList data = favModelClassList.get(i);
    
    d.add(data.getFav());
}

Log.d(TAG, "onClick: " + d);