PullToRefreshListView上下拉加载

首先要加权限：compile ‘com.github.userswlwork:pull-to-refresh:1.0.0’

下面代码是在XML文件中的：

 <com.handmark.pulltorefresh.library.PullToRefreshListView
        android:id="@+id/pull_refresh_list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:cacheColorHint="#00000000"
        android:divider="#19000000"
        android:dividerHeight="4dp"
        android:fadingEdge="none"
        android:fastScrollEnabled="false"
        android:footerDividersEnabled="false"
        android:headerDividersEnabled="false"
        android:smoothScrollbar="true" />

在MainActivity中的方法，列如以下代码：

import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;

import java.util.ArrayList;
import java.util.List;

/**
 * 接入PullToRefresh
 * 1.引入Library
 * 2.依赖model
 * 3. 布局文件中使用可刷新的控件
 * 4. 设置可刷新监听-->  mPullRefreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>()
 *      设置可以上拉  mPullRefreshListView.setMode(PullToRefreshBase.Mode.BOTH);
 */
public class MainActivity extends AppCompatActivity {
    String baseUrl = "http://www.93.gov.cn/93app/data.do?channelId=0&startNum=";
    private ArrayList<Product.DataBean> list = new ArrayList();
    private PullToRefreshListView plv;
    private ArrayAdapter<String> mAdapter;
    private ArrayAdapter arrayAdapter;
    private  int page = 0;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        plv = (PullToRefreshListView) findViewById( R.id.pull_refresh_list);
        arrayAdapter = new ArrayAdapter(MainActivity.this,android.R.layout.simple_list_item_1,list);
        plv.setAdapter(arrayAdapter);
        getNetData(0);

        plv.setMode(PullToRefreshBase.Mode.BOTH);//BOTH 设置支持上下拉
        plv.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
            //下拉刷新
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) {
                // 清空集合,
                list.clear();
                //重新请求数据;更新适配器
                getNetData(0);
            }

            //上拉加载
            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) {
                //请求数据把请求到的新数据放入大集合;更新适配器
                getNetData(page++);
            }
        });


    }

    private void getNetData(int page) {
        new MAsyncTask().execute(baseUrl+page);

    }

    class MAsyncTask extends AsyncTask<String,Void,String>{


        @Override
        protected String doInBackground(String... strings) {
            return NetWordUtils.getNetjson(strings[0]);
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            Gson gson = new Gson();
            Product product = gson.fromJson(s, Product.class);
            List<Product.DataBean> listTemp = product.getData();
            list.addAll(listTemp);
            arrayAdapter.notifyDataSetChanged();
            plv.onRefreshComplete();//关闭刷新头和底部;
        }
    }


}