threed+handler解析gson檔案，並且上拉載入，下拉重新整理

標籤：

ThreeActivity.class:

package com.example.yuekao_one_try;import java.io.IOException;import java.util.ArrayList;import java.util.List;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.StatusLine;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.util.EntityUtils;import com.example.vo.DataDemo;import com.example.vo.Demo;import com.google.gson.Gson;import com.handmark.pulltorefresh.library.PullToRefreshBase;import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode;import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;import com.handmark.pulltorefresh.library.PullToRefreshGridView;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.widget.GridView;public class ThreeActivity extends Activity{    private PullToRefreshGridView grid_view;    private List<Demo> data=new ArrayList<Demo>();    private int p=10;    private int z=10;    private Mybasetwo base;    private String str;    private String url="http://apis.juhe.cn/goodbook/query?key=9d6ef8c31647a206e05fcaff70527182&catalog_id=246&rn=50&rn=";     private int i=1;     private Handler handler=new Handler(){         public void handleMessage(android.os.Message msg) {             switch (msg.what) {            case 0:                base=new Mybasetwo(data, getApplicationContext());                grid_view.setAdapter(base);                break;            case 3:                              base=new Mybasetwo(data, getApplicationContext());                    grid_view.setAdapter(base);                base.notifyDataSetChanged();                grid_view.onRefreshComplete();                break;            case 4:                                  base=new Mybasetwo(data, getApplicationContext());                    grid_view.setAdapter(base);                    grid_view.onRefreshComplete();                break;            default:                break;            }         };     };    protected void onCreate(Bundle savedInstanceState) {            // TODO Auto-generated method stub            super.onCreate(savedInstanceState);        setContentView(R.layout.grid);        grid_view=(PullToRefreshGridView) findViewById(R.id.grid_view);        grid_view.setMode(Mode.BOTH);             init();            grid_view.setOnRefreshListener(new OnRefreshListener<GridView>() {                @Override                public void onRefresh(PullToRefreshBase<GridView> refreshView) {                    // TODO Auto-generated method stub                       i++;                          new Thread(){                               public void run() {                                   url="http://apis.juhe.cn/goodbook/query?key=9d6ef8c31647a206e05fcaff70527182&catalog_id=246&rn=50&rn="+i;                                                                      getClient();                                   Gson g=new Gson();                                DataDemo dd=g.fromJson(str, DataDemo.class);                                data=dd.getResult().getData();                                   handler.sendEmptyMessage(4);                               };                           }.start();                }                                      public void onPullUpToRefresh(PullToRefreshBase<GridView> refreshView) {                        // TODO Auto-generated method stub                        i++;                          new Thread(){                               public void run() {                                   url="http://apis.juhe.cn/goodbook/query?key=9d6ef8c31647a206e05fcaff70527182&catalog_id=246&rn=50&rn="+i;                                   getClient();                                   Gson g=new Gson();                                DataDemo dd=g.fromJson(str, DataDemo.class);                                List<Demo> list=dd.getResult().getData();                                data.addAll(list);                                                                   handler.sendEmptyMessage(3);                                                                  };                           }.start();                    }                });                    }    private void init() {        // TODO Auto-generated method stub           new Thread(){               public void run() {                   url="http://apis.juhe.cn/goodbook/query?key=9d6ef8c31647a206e05fcaff70527182&catalog_id=246&rn=50&rn=10";                   getClient();                   Gson g=new Gson();                DataDemo dd=g.fromJson(str, DataDemo.class);                data=dd.getResult().getData();                  handler.sendEmptyMessage(0);                               };           }.start();    }      private void getClient() {            // TODO Auto-generated method stub            HttpClient  client=new DefaultHttpClient();            HttpGet get=new HttpGet(url);            try {                HttpResponse response=client.execute(get);                 StatusLine  statusLine=response.getStatusLine();                 int statusCode=statusLine.getStatusCode();                 if(statusCode==200){                     HttpEntity  entity=response.getEntity();                     str=EntityUtils.toString(entity,"utf-8");                                     }                            } catch (ClientProtocolException e) {                // TODO Auto-generated catch block                e.printStackTrace();            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }                    };}

再加上適配器，這些就可以重新整理出新的資料了

threed+handler解析gson檔案，並且上拉載入，下拉重新整理