Android官方下拉刷新控件SwipeRefreshLayout

SwipeRefreshLayout是V4包下提供的，使用时需要把要刷新的控件包裹起来。
<android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipRefreshLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
        <ListView
            android:id="@+id/listview"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >
        </ListView>
    </android.support.v4.widget.SwipeRefreshLayout>

package com.bestyc.swiperefreshlayout;
import java.util.ArrayList;
import java.util.List;
import com.bestyc.swiperefreshlayout.R;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class MainActivity extends Activity implements OnRefreshListener{
  private ListView mListView;
  private ArrayAdapter<String> adapter;
  private List<String> mData;
  private SwipeRefreshLayout mSwipeRefreshLayout;
  Handler handler = new Handler(){
  public void handleMessage(android.os.Message msg) {
    //关闭刷新
    mSwipeRefreshLayout.setRefreshing(false);
    mListView.setAdapter(adapter);
  };
  };
  @Override
  protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  requestWindowFeature(Window.FEATURE_NO_TITLE);
  setContentView(R.layout.activity_main);
  mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipRefreshLayout);
  mSwipeRefreshLayout.setOnRefreshListener(this);
  //设置刷新时的颜色
  mSwipeRefreshLayout.setColorSchemeResources(
    android.R.color.holo_blue_bright,
    android.R.color.holo_green_light,
    android.R.color.holo_orange_light);
  mListView=(ListView) findViewById(R.id.listview);
  mData = new ArrayList<String>();
  for (int i=0;i<=10;i++) {
    mData.add("加载的数据"+i);
  }
  adapter = new ArrayAdapter<String>(this, R.layout.item, R.id.text,mData);
  }
  @Override
  public void onRefresh() {//更新数据
  handler.sendEmptyMessageDelayed(1, 3000);
  }
}