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Android Android Lists and Adapters (2015) Custom ListViews getView() and the ViewHolder Pattern

view holder is being changed to recycler view and iconImageView, temperatureLabel, dayLabel are not being recognize

The view holder is being changed to recyclerView which I assume is due to deprecation, but if I'm interpreting this correctly the getView method is unable to find the iconImageView, the temperatureLabel, and the dayLabel.

Code for reference:

package com.treehouse.android.stormy.adapters;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.treehouse.android.stormy.R;
import com.treehouse.android.stormy.weather.Day;

 * Created by charlesdirenzo on 8/1/17.
//this will act as an adapter to pass information from the day object to the
public class dayAdapter extends BaseAdapter

    private Context mContext;
    private Day[] mDays;

    public dayAdapter(Context context, Day[] days)
        mContext = context;
        mDays = days;
    public int getCount()
        return mDays.length;

    public Object getItem(int position)
        return mDays[position];

    public long getItemId(int position)
        return 0;    //this will go unused. This can be used to tag items for easy reference.

    public View getView(int position, View convertView, ViewGroup parent)
        //viewHolder pattern will help us re-use resources and memory, power, and help the list be smoother.
        //convert view is the view that we are reusing. if it is null it's new, and if not then it has data in it.
        //layout inflater is an android object that takes xml layout and turns them into views in code that we can use.
        RecyclerView.ViewHolder holder;

        if (convertView == null)
            //brand new
            convertView = LayoutInflater.from(mContext).inflate(R.layout.daily_list_item,null);
            holder = new RecyclerView.ViewHolder();
            holder.iconImageView = (ImageView) convertView.findViewById(R.id.iconImageView);
            holder.temperatureLabel = (TextView) convertView.findViewById(R.id.temperatureLabel);
            holder.dayLabel = (TextView) convertView.findViewById(R.id.dayNameLabel);

            holder = (RecyclerView.ViewHolder) convertView.getTag();


        return null;

    private static class ViewHolder
        ImageView iconImageView;
        TextView temperatureLabel;
        TextView dayLabel;