storage_item.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">

    <data>
        <variable
            name="commandHandlers"
            type="com.mwb.digitalstorage.command_handlers.ItemHandler"/>
        <variable
            name="storage"
            type="com.mwb.digitalstorage.model.Storage"/>
    </data>

    <LinearLayout
        style="@style/match_parent">

        <Button
            style="@style/btn_storage_list"
            android:layout_marginLeft="50dp"
            android:layout_marginRight="50dp"
            android:text="@{storage.storageName}"
            android:onClick="@{(view) -> commandHandlers.goToItem(view)}"/>
    </LinearLayout>

</layout>

StorageAdapter

package com.mwb.digitalstorage.adapter;

import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.mwb.digitalstorage.R;
import com.mwb.digitalstorage.StorageActivity;
import com.mwb.digitalstorage.command_handlers.ItemHandler;
import com.mwb.digitalstorage.databinding.StorageItemBinding;
import com.mwb.digitalstorage.model.Storage;

import java.util.List;

import androidx.annotation.NonNull;
import androidx.databinding.DataBindingUtil;
import androidx.recyclerview.widget.RecyclerView;

public class StorageListAdapter extends RecyclerView.Adapter<StorageListAdapter.StorageViewHolder>{

    private List<Storage> storageUnits;
    private Context context;

    public StorageListAdapter(List<Storage> storageUnits)
    {
        this.storageUnits = storageUnits;
    }

    //
    //  creates the viewHolder
    //
    @Override
    public StorageListAdapter.StorageViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType)
    {
        this.context = parent.getContext();
        LayoutInflater inflater = LayoutInflater.from(context);
        StorageItemBinding binding = DataBindingUtil.inflate(inflater, R.layout.storage_item, parent, false);
        return new StorageViewHolder(binding);
    }

    //
    //  binds recyclerView to viewHolder
    //
    @Override
    public void onBindViewHolder(@NonNull StorageListAdapter.StorageViewHolder holder, int position)
    {
        Storage storage = storageUnits.get(position);
        holder.bind(storage);
    }

    //
    //  returns the list size
    //
    @Override
    public int getItemCount()
    {
        if (storageUnits != null) { return storageUnits.size(); }
        else { return 0; }
    }

    //__________________________________________________________________________________________________
    //
    //  internal class ViewHolder
    //
    class StorageViewHolder extends RecyclerView.ViewHolder
    {
        private StorageItemBinding binding;

        StorageViewHolder(StorageItemBinding binding)
        {
            super(binding.getRoot());
            this.binding = binding;
            setHandlers();
        }

        //
        //  sets handlers belonging to the holder
        //
        private void setHandlers()
        {
            // handlers and methods
            binding.setCommandHandlers(new ItemHandler()
            {
                @Override
                public void goToItem(View view)
                {
                    context.startActivity(createIntent(view));
                }
            });
        }

        //
        //  create intent
        //
        private Intent createIntent(View v)
        {
            Intent intent = new Intent(context, StorageActivity.class);
            int storageID = v.getId();

            intent.putExtra("storageID", storageID);
            for (Storage storage : storageUnits)
            {
                if (storage.storageID == storageID)
                {
                    intent.putExtra("storage_name", storage.getStorageName());
                    intent.putExtra("storage_loc", storage.getStorageName());
                }
            }
            return intent;
        }

        //
        //  binds the storage unit to the model
        //
        private void bind(@NonNull Storage storage)
        {
            binding.setStorage(storage);
            binding.executePendingBindings();
        }
    }
}