在使用DataBinding绑定RecyclerView时，一个

基类Adapter

package com.example.administrator.databindingproject;

import android.content.Context;
import android.databinding.DataBindingUtil;
import android.databinding.ViewDataBinding;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import java.util.List;


/**
 * 设置抽象的BaseAdapter
 *
 * @param <T> 继承于ViewDataBinding
 * @param <M> Model实体类
 */

public abstract class BaseAdapter<T extends ViewDataBinding, M> extends RecyclerView.Adapter {
    private List<M> list;
    private Context context;

    public BaseAdapter(List<M> list, Context context) {
        this.list = list;
        this.context = context;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        LayoutInflater inflate = LayoutInflater.from(context);
        T binding = DataBindingUtil.inflate(inflate, getLayout(), parent, false);
        return new MyViewHolder(binding.getRoot());
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        T binding = DataBindingUtil.getBinding(holder.itemView);
        setItemData(binding, list.get(position));
    }

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

    //获取item布局
    public abstract int getLayout();

    //设置viewHolder的数据
    public abstract void setItemData(T binding, M m);

    public class MyViewHolder extends RecyclerView.ViewHolder {
        public MyViewHolder(View itemView) {
            super(itemView);
        }
    }

}

在Adapter中继承实现

package com.example.administrator.databindingproject;


import android.content.Context;
import android.util.Log;

import com.example.administrator.databindingproject.databinding.ItemSecondBinding;

import java.util.List;

/**
 * Created by $wu on 2017-09-09 下午 2:03.
 */

public class TestAdapter extends BaseAdapter<ItemSecondBinding, User> {


    public TestAdapter(List<User> list, Context context) {
        super(list, context);
    }

    @Override
    public int getLayout() {
        return R.layout.item_second;
    }

    @Override
    public void setItemData(ItemSecondBinding binding, User t) {
        binding.setUser(t);
        binding.executePendingBindings();
    }


}

Activityh中的实现

 private void initView() {
        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        List<User> users = new ArrayList<>();
        for (int i = 0; i < 30; i++) {
            User user = new User();
            user.name.set("wu");
            user.age.set(i);
            users.add(user);
        }
        TestAdapter adapter = new TestAdapter(users, this);
        recyclerView.setAdapter(adapter);
    }