上个月，google它宣布了自己的下拉刷新控制------SwipeRefreshLayout，控制封装在android-support-v4.jar包裹，依靠听力OnRefreshListener实施刷新操作。

件使用方法十分简单，setEnable()方法控制刷新是否可用，setRefreshing()方法控制刷新进度条动画是否可用。因为是要实现下拉刷新，官方文档明白指出该控件所含有的一个直接子View必须是可以滚动的，如ListView、ScrollView等等。

         要使用该控件，须要如今布局文件定义SwipeRefreshLayout控件，布局文件例如以下：

   listView 的item布局文件：

    主activity代码例如以下：

package com.example.android_test_swiperefreshlayout;import java.util.ArrayList;import android.os.Bundle;import android.os.Handler;import android.R.integer;import android.app.Activity;import android.support.v4.widget.SwipeRefreshLayout;import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity implements OnRefreshListener{    private SwipeRefreshLayout swipeLayout;    private ListView listView;    private ArrayList
     
       list;    private MyAdapter adapter;    private int count = 0;    @Override    protected void onCreate(Bundle savedInstanceState)    {	super.onCreate(savedInstanceState);	setContentView(R.layout.activity_main);	initData();	swipeLayout = (SwipeRefreshLayout) findViewById(R.id.swipe);	swipeLayout.setColorScheme(android.R.color.holo_blue_bright,		android.R.color.holo_green_light, android.R.color.holo_orange_light,		android.R.color.holo_red_light);		listView = (ListView) findViewById(R.id.list);	adapter = new MyAdapter();	listView.setAdapter(adapter);	swipeLayout.setOnRefreshListener(this);    }    public void initData()    {	list = new ArrayList
      
       ();	for (int i = 0; i < 24; i++)	{	    list.add("北京" + i);	}	count = 24;    }    class MyAdapter extends BaseAdapter    {	@Override	public int getCount()	{	    // TODO Auto-generated method stub	    return list.size();	}	@Override	public Object getItem(int position)	{	    // TODO Auto-generated method stub	    return list.get(position);	}	@Override	public long getItemId(int position)	{	    // TODO Auto-generated method stub	    return position;	}	@Override	public View getView(int position, View convertView, ViewGroup parent)	{	    // TODO Auto-generated method stub	    if (convertView == null)	    {		convertView = LayoutInflater.from(getApplicationContext()).inflate(R.layout.item,			null);	    }	    TextView textView = (TextView) convertView.findViewById(R.id.textView1);	    textView.setText(list.get(position));	    return convertView;	}    }    @Override    public void onRefresh()    {	// TODO Auto-generated method stub	new Handler().postDelayed(new Runnable()	{	    	    @Override	    public void run()	    {		// TODO Auto-generated method stub		swipeLayout.setRefreshing(true);		list.add("新增北京"+count);		count++;		adapter.notifyDataSetChanged();			    }	}, 3000);    }}
      
     

Demo下载地址：

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