收藏列表实例【ViewSwitcher+Thread+JSONObject ++handler+Adapter】

 

 

layout_favorite_list.xml

 

 

 

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:background="@color/listcolor"

    android:orientation="vertical" >

   

    <include layout="@layout/header_bar"/>

   

    <FrameLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="vertical" >

 

        <ViewSwitcher

            android:id="@+id/viewswitcher_news_top"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:layout_gravity="center" >

        </ViewSwitcher>

 

        <ListView

            android:id="@+id/favorite_list"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:cacheColorHint="@color/transparent"

            android:divider="@drawable/tip_line" />

    </FrameLayout>

 

</LinearLayout>

 

 

 

 

FavoriteActivityList.java

 

 

 

package com.cps.media.ui.favorite;

 

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.util.ArrayList;

import java.util.List;

 

import org.apache.http.HttpResponse;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.DefaultHttpClient;

import org.json.JSONArray;

import org.json.JSONObject;

 

import com.cps.media.R;

import com.cps.media.model.ExhibitorItem;

import com.cps.media.model.FavoriteItem;

import com.cps.media.model.NewsItem;

import com.cps.media.ui.PopupWindowImageButton;

import com.cps.media.ui.account.AccountManager;

import com.cps.media.ui.exhibitors.ExhibitorActivity;

import com.cps.media.ui.news.NewsContainerActivity;

import com.cps.media.util.CONST;

import com.cps.media.util.Util;

 

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.BaseAdapter;

import android.widget.ImageButton;

import android.widget.ListView;

import android.widget.TextView;

import android.widget.ViewSwitcher;

import android.widget.AdapterView.OnItemClickListener;

 

publicclass FavoriteActivityList extends Activity implements OnClickListener{

   

    publicstatic String NEWS_TITLE = "title";

    publicstatic String NEWS_TYPE = "type";

   

    private ListView mList;

   

    private List<FavoriteItem> mFavoriteList;

   

    private ItemAdapter mAdapter;

 

    private ViewSwitcher viewSwitcher;

 

    private ImageButton mBackImageButton;

 

    private TextView mTitleTextView;

   

    privateintmMode;

   

    private PopupWindowImageButton mMenuImageButton;

 

    @Override

    protectedvoid onCreate(Bundle savedInstanceState) {

       // TODO Auto-generated method stub

       super.onCreate(savedInstanceState);

       setContentView(R.layout.layout_favorite_list);

      

       mList = (ListView) findViewById(R.id.favorite_list);

      

       viewSwitcher = (ViewSwitcher) findViewById(R.id.viewswitcher_news_top);

       viewSwitcher.addView(getLayoutInflater().inflate(

              R.layout.layout_progress_page, null));

 

       mBackImageButton = (ImageButton) findViewById(R.id.btn_newscontent_back);

       mBackImageButton.setOnClickListener(this);

 

       mMenuImageButton = (PopupWindowImageButton) findViewById(R.id.header_menu);

 

       mTitleTextView = (TextView) findViewById(R.id.new_header_title);

        mTitleTextView.setText(getIntent().getIntExtra(NEWS_TITLE, R.string.news_top_left_text));

       mMode = getIntent().getIntExtra(NEWS_TYPE, Util.FAVORITE_NEWS);

       requestData();

    }

   

    @Override

    protectedvoid onResume() {

       // TODO Auto-generated method stub

       super.onResume();

       mMenuImageButton.reload(Util.SHOW_FAVORITE);

    }

   

    privateOnItemClickListenerlistener = new OnItemClickListener() {

 

       @Override

       public void onItemClick(AdapterView<?> parent, View view, int position,

              long id) {

           Intent intent = null;

           if(mMode == Util.FAVORITE_NEWS){

              intent = new Intent(FavoriteActivityList.this,

                     NewsContainerActivity.class);

              NewsItem item = new NewsItem();

              item.setId(mFavoriteList.get(position).getCid());

              item.setNewsType(mFavoriteList.get(position).getSrc_type());

              item.setTitle(mFavoriteList.get(position).getTitle());

              intent.putExtra("news_item", item);

              startActivityForResult(intent, 0);

           }elseif(mMode == Util.FAVORITE_EXHIBITOR){

              intent = new Intent(FavoriteActivityList.this,

                     ExhibitorActivity.class);

              ExhibitorItem item = new ExhibitorItem();

              item.setId(mFavoriteList.get(position).getCid());

              item.setName(mFavoriteList.get(position).getTitle());

              intent.putExtra("exhibitor_item", item);

              startActivityForResult(intent,0);

           }

       }

    };

   

    protectedvoid onActivityResult(int requestCode, int resultCode, Intent data) {

       switch (requestCode) {

       case 0:

           requestData();

           break;

 

       default:

           break;

       }

    }

   

    privatevoid requestData() {

       viewSwitcher.setVisibility(View.VISIBLE);

       viewSwitcher.showNext();

       Thread t = new Thread() {

           @Override

           publicvoid run() {

              super.run();

              HttpClient client = new DefaultHttpClient();

              StringBuilder builder = new StringBuilder();

              int error = 1;

              JSONArray array = null;

              HttpGet myget = null;

              if (getIntent().getIntExtra(NEWS_TYPE, Util.FAVORITE_NEWS) == Util.FAVORITE_NEWS) {

                  myget = new HttpGet(CONST.URL_FAVORIT_LIST

                         .replace("{0}", "english")

                         .replace("{1}", "favorList")

                         .replace("{2}", Util.FAVORITE_NEWS+"")

                         .replace(

                                "{3}",

                                AccountManager.getInstance().getAccount()

                                       .getId()

                                       + ""));

              } else {

                  myget = new HttpGet(CONST.URL_FAVORIT_LIST

                         .replace("{0}", "english")

                         .replace("{1}", "favorList")

                         .replace("{2}", Util.FAVORITE_EXHIBITOR+"")

                         .replace(

                                "{3}",

                                AccountManager.getInstance().getAccount()

                                       .getId()

                                       + ""));

              }

              try {

                  HttpResponse response = client.execute(myget);

                  BufferedReader reader = new BufferedReader(

                         new InputStreamReader(response.getEntity()

                                .getContent()));

                  for (String s = reader.readLine(); s != null; s = reader

                         .readLine()) {

                     builder.append(s);

                  }

                  JSONObject jsonObject = new JSONObject(builder.toString());

                  error = jsonObject.getInt("errno");

                  String errormsg = jsonObject.getString("errmsg");

                  Log.v("wgp",myget.getURI().toString());

                  Log.v("wgp", "error=" + error);

                  Log.v("wgp", "errormsg=" + errormsg);

                  if (error == 0) {

                     array = jsonObject.getJSONArray("data");

                     mFavoriteList = new ArrayList<FavoriteItem>();

                     FavoriteItem item = null;

                     String srcType;

                     for (int i = 0; i < array.length(); i++) {

                         item = new FavoriteItem();

                         item.setId(array.getJSONObject(i).getInt("id"));

                         item.setUserId(array.getJSONObject(i).getInt("userid"));

                         item.setUsername(array.getJSONObject(i).getString("username"));

                         item.setType(array.getJSONObject(i).getInt("type"));

                         item.setCid(array.getJSONObject(i).getInt("cid"));

                         item.setTitle(array.getJSONObject(i).getString("title"));

                         item.setUrl(array.getJSONObject(i).getString("url"));

                         item.setTag(array.getJSONObject(i).getString("tag"));

                         item.setSrc(array.getJSONObject(i).getString("src"));

                         item.setCreateDate(array.getJSONObject(i).getString("created"));

                         item.setModifiedDate(array.getJSONObject(i).getString("modified"));

                         srcType = array.getJSONObject(i).getString("src_type");

                         if(srcType != null && srcType.equals("cps")){

                            item.setSrc_type("industry");

                         }else{

                            item.setSrc_type(srcType);

                         }

                         mFavoriteList.add(item);

                     }

                     if (mFavoriteList.size() == 0) {

                         handler.sendEmptyMessage(-1);

                     } else {

                         handler.sendEmptyMessage(1);

                     }

                  }

              } catch (Exception e) {

                  e.printStackTrace();

                  handler.sendEmptyMessage(-1);

              } finally {

              }

           }

       };

        t.start();

    }

   

    Handler handler = new Handler() {

       publicvoid handleMessage(android.os.Message msg) {

           if (msg.what == 1) {

              mAdapter = new ItemAdapter();

              mList.setAdapter(mAdapter);

              mList.setOnItemClickListener(listener);

           }

           viewSwitcher.setVisibility(View.INVISIBLE);

       };

    };

   

    class ItemAdapter extends BaseAdapter {

 

       private ViewHolder holder;

 

       @Override

       publicint getCount() {

           return mFavoriteList.size();

       }

 

       @Override

       public Object getItem(int location) {

           returnmFavoriteList.get(location);

       }

 

       @Override

       publiclong getItemId(int location) {

           returnmFavoriteList.get(location).getId();

       }

 

       @Override

       public View getView(int position, View convertView, ViewGroup parent) {

 

           try {

              if (convertView == null) {

                  holder = new ViewHolder();

                  convertView = getLayoutInflater().inflate(

                         R.layout.layout_favorite_list_item, null);

                  holder.title = (TextView) convertView

                         .findViewById(R.id.favorite_title);

                  convertView.setTag(holder);

              } else {

                  holder = (ViewHolder) convertView.getTag();

              }

              holder.title.setText(mFavoriteList.get(position).getTitle());

           } catch (Exception e) {

              e.printStackTrace();

           }

           return convertView;

 

       }

 

       class ViewHolder {

           TextView title;

       }

    }

 

    @Override

    publicvoid onClick(View v) {

       int id = v.getId();

       switch (id) {

       case R.id.btn_newscontent_back:

           backKey();

           break;

 

       default:

           break;

       }

    }

   

    privatevoid backKey() {

       setResult(RESULT_OK);

       finish();

       getParent().overridePendingTransition(R.anim.news_dync_in_from_left,

              R.anim.news_dync_out_to_right);

    }

 

}