Here is a generic ViewHolder class that you can use with any DataBinding layout. Here an instance of particular [ViewDataBinding](<https://developer.android.com/reference/android/databinding/ViewDataBinding.html>) class is created using the inflated View object and [DataBindingUtil](<https://developer.android.com/reference/android/databinding/DataBindingUtil.html>) utility class.

import android.databinding.DataBindingUtil;
import android.support.v7.widget.RecyclerView;
import android.view.View;

public class BindingViewHolder<T> extends RecyclerView.ViewHolder{

    private final T binding;

    public BindingViewHolder(View itemView) {
        super(itemView);
        binding = (T)DataBindingUtil.bind(itemView);
    }

    public T getBinding() {
        return binding;
    }
}

After creating this class you can use the <layout> in your layout file to enable databinding for that layout like this:

file name: my_item.xml

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

    <data>
        <variable
            name="item"
            type="ItemModel" />
    </data>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="@{item.itemLabel}" />
    </LinearLayout>
</layout>

and here is your sample dataModel:

public class ItemModel {
    public String itemLabel;
}

By default, Android Data Binding library generates a ViewDataBinding class based on the layout file name, converting it to Pascal case and suffixing “Binding” to it. For this example it would be MyItemBinding for the layout file my_item.xml. That Binding class would also have a setter method to set the object defined as data in the layout file(ItemModel for this example).

Now that we have all the pieces we can implement our adapter like this:

class MyAdapter extends RecyclerView.Adapter<BindingViewHolder<MyItemBinding>>{
    ArrayList<ItemModel> items = new ArrayList<>();
        
    public MyAdapter(ArrayList<ItemModel> items) {
        this.items = items;
    }

    @Override public BindingViewHolder<MyItemBinding> onCreateViewHolder(ViewGroup parent, int viewType) {
        return new BindingViewHolder<>(LayoutInflater.from(parent.getContext()).inflate(R.layout.my_item, parent, false));
    }

    @Override public void onBindViewHolder(BindingViewHolder<ItemModel> holder, int position) {
        holder.getBinding().setItemModel(items.get(position));
        holder.getBinding().executePendingBindings();
    }

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