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   源码介绍

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package lty.newscol;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;


import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

public class MainActivity extends Activity implements OnClickListener{
	

	private TextView tv_date;
	private TextView tv_month;
	private ListView lv;
	private String[] title;
	private String[] content;
	private List<HealthLayoutMessage> contentlist;
	private BaseAdapter adapter;
	
	private ImageView iv_more;
	List<Map<String, String>> moreList;
	private PopupWindow pwMyPopWindow;// popupwindow
	private ListView lvPopupList;// popupwindow对应的ListView
	private int NUM_OF_VISIBLE_LIST_ROWS = 5;//listview中栏目的数量
	
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.activity_main);
		initData();
		initPopupWindow();
		initotherview();
		initviews();
		lv.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> arg0, View arg1, int p,
					long arg3) {
				// TODO Auto-generated method stub
				String url = contentlist.get(p).getUrl().toString();
				Intent intent = new Intent(MainActivity.this,HealthNewsDetail.class);
				intent.putExtra("url", url);
				startActivity(intent);
			}
			
		});
	}
	
	private List<HealthLayoutMessage> getMyData(){
		List<HealthLayoutMessage> msgList = new ArrayList<HealthLayoutMessage>();
		HealthLayoutMessage msg;
		title = getResources().getStringArray(R.array.lv_title);
		content = getResources().getStringArray(R.array.lv_content);
		/*
		 * Tag标签:新闻的种类
		 * 1:慢病
		 * 2:免疫
		 * 3:流行病
		 * 4:保健
		 * */
		msg = new HealthLayoutMessage();
		msg.setTag(1);
		msg.setType(MyAdapter.LV_NO_PIC);
		msg.setTitle(title[0]);
		msg.setContent(content[0]);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		
		msg = new HealthLayoutMessage();
		msg.setTag(2);
		msg.setType(MyAdapter.LV_BIG_PIC);
		msg.setTitle(title[8]);
		msg.setPic(R.drawable.newspic1);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		
		msg = new HealthLayoutMessage();
		msg.setTag(1);
		msg.setType(MyAdapter.LV_NO_PIC);
		msg.setTitle(title[1]);
		msg.setContent(content[1]);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		
		msg = new HealthLayoutMessage();
		msg.setTag(3);
		msg.setType(MyAdapter.LV_LITTLE_PIC);
		msg.setTitle(title[2]);
		msg.setContent(content[2]);
		msg.setPic(R.drawable.newssquarepic1);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		
		msg = new HealthLayoutMessage();
		msg.setTag(4);
		msg.setType(MyAdapter.LV_NO_PIC);
		msg.setTitle(title[3]);
		msg.setContent(content[3]);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		
		msg = new HealthLayoutMessage();
		msg.setTag(4);
		msg.setType(MyAdapter.LV_NO_PIC);
		msg.setTitle(title[4]);
		msg.setContent(content[4]);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);

		msg = new HealthLayoutMessage();
		msg.setTag(2);
		msg.setType(MyAdapter.LV_LITTLE_PIC);
		msg.setTitle(title[5]);
		msg.setContent(content[5]);
		msg.setPic(R.drawable.newssquarepic2);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		
		msg = new HealthLayoutMessage();
		msg.setTag(1);
		msg.setType(MyAdapter.LV_BIG_PIC);
		msg.setTitle(title[9]);
		msg.setPic(R.drawable.newspic2);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		
		msg = new HealthLayoutMessage();
		msg.setTag(3);
		msg.setType(MyAdapter.LV_NO_PIC);
		msg.setTitle(title[6]);
		msg.setContent(content[6]);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		
		msg = new HealthLayoutMessage();
		msg.setTag(3);
		msg.setType(MyAdapter.LV_NO_PIC);
		msg.setTitle(title[7]);
		msg.setContent(content[7]);
		msg.setUrl("http://news.fh21.com.cn/jksd/480509.html");
		msgList.add(msg);
		return msgList;
		
	}
	private void initData() {

		moreList = new ArrayList<Map<String, String>>();
		Map<String, String> map;
		map = new HashMap<String, String>();
		map.put("share_key", "慢病");
		moreList.add(map);
		map = new HashMap<String, String>();
		map.put("share_key", "免疫");
		moreList.add(map);
		map = new HashMap<String, String>();
		map.put("share_key", "流行病");
		moreList.add(map);
		map = new HashMap<String, String>();
		map.put("share_key", "保健");
		moreList.add(map);
		map = new HashMap<String, String>();
		map.put("share_key", "所有资讯");
		moreList.add(map);
		contentlist = new ArrayList<HealthLayoutMessage>(getMyData());
		adapter = getAdapter();
	}

	@SuppressLint("InflateParams")
	private void initPopupWindow() {

		LayoutInflater inflater = (LayoutInflater) this
				.getSystemService(LAYOUT_INFLATER_SERVICE);
		View layout = inflater.inflate(R.layout.task_detail_popupwindow, null);
		lvPopupList = (ListView) layout.findViewById(R.id.lv_popup_list);
		pwMyPopWindow = new PopupWindow(layout);
		pwMyPopWindow.setFocusable(true);
		lvPopupList.setAdapter(new SimpleAdapter(MainActivity.this, moreList,
				R.layout.list_item_popupwindow, new String[] { "share_key" },
				new int[] { R.id.tv_list_item }));
		lvPopupList.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				contentlist.clear();
				if(position == 4){
					contentlist.addAll(getMyData());
				}
				else{
					contentlist.addAll(getMyData());
					for(int i=0;i<contentlist.size();i  ){
						if(contentlist.get(i).getTag()!=(position 1)){
							contentlist.remove(i);
							i--;
						}
					}
				}
				adapter.notifyDataSetChanged();
			}
		});

		// 设置popupwindow 的长宽		
		lvPopupList.measure(View.MeasureSpec.UNSPECIFIED,
				View.MeasureSpec.UNSPECIFIED);
		pwMyPopWindow.setWidth(lvPopupList.getMeasuredWidth());
		pwMyPopWindow.setHeight((lvPopupList.getMeasuredHeight() 6)
				* NUM_OF_VISIBLE_LIST_ROWS);

		// 设置背景
		pwMyPopWindow.setBackgroundDrawable(this.getResources().getDrawable(
				R.drawable.bitmap_book_read_chapterlist_repeat));
		pwMyPopWindow.setOutsideTouchable(true);//设置popupwindow 点击外面消失
	}

	private void initotherview() {
		// TODO Auto-generated method stub
		iv_more = (ImageView)findViewById(R.id.health_news_more_content);
		iv_more.setOnClickListener(this);
	}

	private BaseAdapter getAdapter(){
		return new MyAdapter(this, contentlist);
	}
	

	
	private void initviews() {
		// TODO Auto-generated method stub
		String[] monthname = getResources().getStringArray(R.array.Month); 
		tv_date = (TextView)findViewById(R.id.health_news_date);
		tv_month = (TextView)findViewById(R.id.health_news_month);
		
		lv = (ListView)findViewById(R.id.health_news_lv);
		lv.setAdapter(adapter);
		

		
		/*
		 *修改日期信息 
		 * */
		Calendar c = Calendar.getInstance();//可以对每个时间域单独修改 
		int month_index = c.get(Calendar.MONTH); 
		String date = String.valueOf(c.get(Calendar.DATE));
		if(date.length()<2) date = "0" date;
		tv_date.setText(date);
		tv_month.setText(monthname[month_index]);
		
	}

	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		switch(v.getId()){
		case R.id.health_news_more_content:
			if (pwMyPopWindow.isShowing()) {

				pwMyPopWindow.dismiss();// 鍏抽棴
			} else {

				pwMyPopWindow.showAsDropDown(iv_more);// 鏄剧ず
			}
		}
	}
	

	
	
		 
}