<android.support.v4.widget.SwipeRefreshLayout
 android:id="@+id/layout_swipe_refresh"
 android:layout_width="match_parent"
 android:layout_height="match_parent">

 <android.support.v7.widget.RecyclerView
 android:id="@+id/recyclerview"
 android:layout_width="match_parent"
 android:layout_height="match_parent">
 </android.support.v7.widget.RecyclerView>
</android.support.v4.widget.SwipeRefreshLayout>

mRefreshLayout.setOnRefreshListener(new OnRefreshListener(){
 public void onRefresh() {
  //我在List最前面加入一条数据
 mData.add(0, "嘿，我是“下拉刷新”生出来的");

 //数据重新加载完成后，提示数据发生改变，并且设置现在不在刷新
 mAdapter.notifyDataSetChanged();
 mRefreshLayout.setRefreshing(false);
 }
});

package com.study.wnw.recyclerviewrefresh;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;

/** * Created by wnw on 16-5-26. */
public abstract class EndLessOnScrollListener extends RecyclerView.OnScrollListener{

 //声明一个LinearLayoutManager
 private LinearLayoutManager mLinearLayoutManager;

 //当前页，从0开始 private int currentPage = 0;
 //已经加载出来的Item的数量
 private int totalItemCount;

 //主要用来存储上一个totalItemCount
 private int previousTotal = 0;

 //在屏幕上可见的item数量
 private int visibleItemCount;

 //在屏幕可见的Item中的第一个
 private int firstVisibleItem;

 //是否正在上拉数据
 private boolean loading = true;

 public EndLessOnScrollListener(LinearLayoutManager linearLayoutManager) {
 this.mLinearLayoutManager = linearLayoutManager;
 }

 @Override
 public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
 super.onScrolled(recyclerView, dx, dy); 

 visibleItemCount = recyclerView.getChildCount();
 totalItemCount = mLinearLayoutManager.getItemCount();
 firstVisibleItem = mLinearLayoutManager.findFirstVisibleItemPosition();
 if(loading){
  //Log.d("wnwn","firstVisibleItem: " +firstVisibleItem);
  //Log.d("wnwn","totalPageCount:" +totalItemCount); 
  //Log.d("wnwn", "visibleItemCount:" + visibleItemCount)；

  if(totalItemCount > previousTotal){
  //说明数据已经加载结束
  loading = false;
  previousTotal = totalItemCount;
  } 
 }
 //这里需要好好理解
 if (!loading && totalItemCount-visibleItemCount <= firstVisibleItem){
  currentPage ++;
  onLoadMore(currentPage);
  loading = true;
 }
 }

 /**
 * 提供一个抽闲方法，在Activity中监听到这个EndLessOnScrollListener
 * 并且实现这个方法
 * */
 public abstract void onLoadMore(int currentPage);}

mRecyclerView.addOnScrollListener(new EndLessOnScrollListener(mLinearLayoutManager) {
 @Override
 public void onLoadMore(int currentPage) {
 loadMoreData();
 }
});

//每次上拉加载的时候，给RecyclerView的后面添加了10条数据数据
private void loadMoreData(){
 for (int i =0; i < 10; i++){
 mData.add("嘿，我是“上拉加载”生出来的"+i);
 mAdapter.notifyDataSetChanged();
 }
}