SwipeRefreshLayout 官方下拉刷新组件

package com.weidingqiang.customlistview;

import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

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

public class SwipeActivity extends AppCompatActivity {

    private SwipeRefreshLayout swipeRefreshLayout;

    private ListView listView;

    List<String> data;

    private ArrayAdapter arrayAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_swipe);

        listView = (ListView) this.findViewById(R.id.listview);
        swipeRefreshLayout = (SwipeRefreshLayout) this.findViewById(R.id.swipeRefreshLayout);

        initData();

        //设置刷新时动画的颜色，可以设置4个
        swipeRefreshLayout.setColorSchemeResources(android.R.color.holo_blue_light, android.R.color.holo_red_light, android.R.color.holo_orange_light, android.R.color.holo_green_light);
        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {

            @Override
            public void onRefresh() {
                //tv.setText("正在刷新");
                // TODO Auto-generated method stub
                new Handler().postDelayed(new Runnable() {

                    @Override
                    public void run() {
                        // TODO Auto-generated method stub
                        //tv.setText("刷新完成");
                        swipeRefreshLayout.setRefreshing(false);
                    }
                }, 2000);
            }
        });
    }

    private void initData(){
        data = new ArrayList<String>();

        data.add("测试数据1");
        data.add("测试数据2");
        data.add("测试数据3");
        data.add("测试数据1");
//        data.add("测试数据2");
//        data.add("测试数据3");
//        data.add("测试数据1");
//        data.add("测试数据2");
//        data.add("测试数据3");
//        data.add("测试数据1");
//        data.add("测试数据2");
//        data.add("测试数据3");

        arrayAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,data);

        listView.setAdapter(arrayAdapter);
    }
}

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.SwipeRefreshLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/swipeRefreshLayout"
    >

    <ListView
        android:id="@+id/listview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></ListView>

</android.support.v4.widget.SwipeRefreshLayout>