xListview

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import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;

import com.bwei.MyHelper.MyHelper;
import com.bwei.adapter.MyAdapter;
import com.bwei.bean.Bean1;
import com.bwei.bean.Bean1.Bean2;
import com.bwei.bean.Bean1.Bean2.Bean3;
import com.bwei.xlistview.XListView;
import com.bwei.xlistview.XListView.IXListViewListener;
import com.google.gson.Gson;

import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;

public class MainActivity extends Activity implements IXListViewListener {

   Handler handler = new Handler() {
       private MyAdapter adapter;

       public void handleMessage(android.os.Message msg) {

           switch (msg.what) {

           case 0:

               list = (ArrayList<Bean2>) msg.obj;
               adapter = new MyAdapter(list, MainActivity.this);
               xlistview.setAdapter(adapter);
               close();

               break;

           case 1:

               adapter.notifyDataSetChanged();
               close();
               break;
           default:
               break;
           }
           add();
       };
   };

   private ArrayList<Bean2> list;
   private String url1;
   private XListView xlistview;
   private int i;
   private String url2;
   private SQLiteDatabase db;

   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       // 初始化界面
       xlistview = (XListView) findViewById(R.id.xlistview);
       i = 1;
       url2 = "http://ic.snssdk.com/2/article/v25/stream/";
       url1 = "http://ic.snssdk.com/2/article/v25/stream/?category=news_tech&count=20&bd_latitude=4.9E-324&bd_longitude=4.9E-324&bd_loc_time=1457695555&loc_mode=5&lac=4527&cid=28883&iid=3835029558&device_id=12211880440&ac=wifi&channel=baidu&aid=13&app_name=news_article&version_code=460&device_platform=android&device_type=iToolsAVM&os_api=i"+1;
       // 网络请求数据
       getDataFromNet(url2);

       xlistview.setPullLoadEnable(true);
       xlistview.setPullRefreshEnable(true);
       xlistview.setXListViewListener(this);


       xlistview.setOnItemClickListener(new OnItemClickListener() {

           @Override
           public void onItemClick(AdapterView<?> parent, View view,
                   int position, long id) {
               Intent intent = new Intent(MainActivity.this,
                       OtherActivity.class);
               String article_url = list.get(position).article_url;
               intent.putExtra("article_url", article_url);
               startActivity(intent);
           }
       });
   }

   private void add() {
       MyHelper myHelper = new MyHelper(this);
       db = myHelper.getWritableDatabase();
       ContentValues Values = new ContentValues();
       Values.put("item_id", 1);
       Values.put("title", list.get(i).title);
       Values.put("source", list.get(i).source);
       Values.put("article_url", list.get(i).article_url);
       db.insert("news", null, Values);

   }

   protected void close() {
       xlistview.stopLoadMore();

xlistview.stopRefresh();

       xlistview.setRefreshTime("现在");

   }

   // 网络请求数据
   private void getDataFromNet(final String url1) {

       new Thread() {
           public void run() {
               try {
                   URL url = new URL(url1);
                   HttpURLConnection conn = (HttpURLConnection) url
                           .openConnection();
                   conn.setConnectTimeout(3000);
                   conn.setReadTimeout(2000);

                   if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
                       InputStream inputStream = conn.getInputStream();
                       String json = input2String(inputStream);
//                       System.out.println(json);
                       ArrayList<Bean2> data = parseJson(json);
//                       System.out.println(list.toString());
                       Message message = new Message();
                       message.obj = data;
                       handler.sendMessage(message);
                   }
               } catch (Exception e) {
                   // TODO Auto-generated catch block
                   e.printStackTrace();
               }
           };
       }.start();
   }

   protected ArrayList<Bean2> parseJson(String json) {
       Gson gson = new Gson();
       Bean1 bean1 = gson.fromJson(json, Bean1.class);
       ArrayList<Bean2> data = bean1.data;
       System.out.println("-----------"+data.toString());

       return data;
   }

   protected String input2String(InputStream is) throws IOException {
       ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
       int len = 0;
       byte[] buffer = new byte[1024];
       while ((len = is.read(buffer)) != -1) {
           outputStream.write(buffer, 0, len);
       }
       return outputStream.toString();
   }

   @Override
   public void onRefresh() {

       handler.postDelayed(new Runnable() {
           @Override
           public void run() {
               ++i;
               getDataFromNet(url2);

               handler.sendEmptyMessage(1);
           }
       }, 2000);

   }

   @Override
   public void onLoadMore() {
       handler.postDelayed(new Runnable() {
           @Override
           public void run() {
               --i;
               getDataFromNet(url2);

               handler.sendEmptyMessage(1);
           }
       }, 2000);

   }

}

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