NewsListAdapter.java

package com.sogou.sogouchat.ui;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;

import com.sogou.sogouchat.R;
import com.sogou.sogouchat.SogouChatApp;
import com.sogou.sogouchat.bean.ContactNode;
import com.sogou.sogouchat.bean.TelNode;

import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.text.format.Time;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class NewsListAdapter extends BaseAdapter {
	
	public final class ViewHolder{
		public ImageView mImg;
		public TextView mName;
		public TextView mLastBody;
		public TextView mLastDate;
		public BadgeView mBadge;
	}
	public ArrayList<TelNode> mData = new ArrayList<TelNode>();
	private LayoutInflater mInflater;
	private TabMainActivity mActivity;
	private SogouChatApp mApp;
	private static final int mDroidGreen = Color.parseColor("#A4C639");
	private int mJuliaDay;
	
	public NewsListAdapter(Context context, SogouChatApp app){
		mActivity =(TabMainActivity) context;
		mInflater = LayoutInflater.from(context);
		mApp = app;
	}
	
	public void extraList() {
		mData.clear();
		int totalNew = 0;
		Iterator<TelNode> telIt = mApp.mTelList.iterator();
		while (telIt.hasNext()) {
			TelNode telNode = telIt.next();
			if (telNode.mMsgCnt > 0) {
				mData.add(telNode);
				if (telNode.mNewMsgCnt > 0)
					totalNew += telNode.mNewMsgCnt;
			}
		}
		// sort list
		Collections.sort(mData, new SortByDate());
		sortDataByDate();
		if (totalNew > 0) {
			mActivity.setTotalNewMsgCnt(totalNew);
		}

//		// Print
//		Iterator<TelNode> ii = mData.iterator();
//		while (ii.hasNext()) {
//			TelNode telNode = ii.next();
//			Log.i("NewsListAdapter", telNode.mName + telNode.mLastBody);
//		}
	}
	
	//倒序
	class SortByDate implements Comparator {
		public int compare(Object o1, Object o2) {
			TelNode item1 = (TelNode) o1;
			TelNode item2 = (TelNode) o2;
			if (item1.mLastDate > item2.mLastDate)
				return -1;
			else
				return 1;
		}
	}
	
	ArrayList<TelNode> getData(){
		return mData;
	}
	
	void setData(ArrayList<TelNode> data){
		mData = data;
	}
	
	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		return mData.size();
	}

	@Override
	public Object getItem(int arg0) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public long getItemId(int arg0) {
		// TODO Auto-generated method stub
		return 0;
	}
	
	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		ViewHolder holder = null;
		TelNode item = mData.get(position);
		if (convertView == null) {
			holder = new ViewHolder();
			if (item.mTel != null) {
				convertView = mInflater.inflate(R.layout.item_news_list, null);
			} else {
				convertView = mInflater.inflate(R.layout.item_news_separator,null);
			}
			convertView.setTag(holder);
		} else {
			holder = (ViewHolder) convertView.getTag();
		}
		
		if (holder == null) {
			holder = new ViewHolder();
		}
		if (item.mTel != null) {
			if (holder.mName== null || holder.mName.getId() != R.id.news_text_name){
				convertView = mInflater.inflate(R.layout.item_news_list, null);
			}
			holder.mImg = (ImageView) convertView.findViewById(R.id.news_icon);
			holder.mName = (TextView) convertView.findViewById(R.id.news_text_name);
			holder.mLastBody = (TextView) convertView	.findViewById(R.id.news_text_msg);
			holder.mLastDate = (TextView) convertView.findViewById(R.id.news_text_date);
			holder.mBadge = new BadgeView(mActivity, holder.mImg);
			holder.mBadge.setBadgeBackgroundColor(mDroidGreen);
			holder.mBadge.setTextColor(Color.BLACK);
			holder.mName.setText(item.mName);
			holder.mLastBody.setText(item.mLastBody);

			String dateFormat = "MM/dd h:mmaa";
			// if (isSameDay(item.mTelNode.mLastDate)){
			// dateFormat = "h:mmaa";
			// }
			// else {
			// dateFormat = "MM/dd h:mmaa";
			// }
			SimpleDateFormat format1 = new SimpleDateFormat(dateFormat);
			String date = format1.format(item.mLastDate);
			holder.mLastDate.setText(date);

			if (item.mNewMsgCnt > 0) {
				holder.mBadge.setText(String.valueOf(item.mNewMsgCnt));
				holder.mBadge.show();
			} else {
				holder.mBadge.hide();
			}
		}
		else{
			if (holder.mName== null || holder.mName.getId() != R.id.news_text_separator){
				convertView = mInflater.inflate(R.layout.item_news_separator,null);
			}
			holder.mName = (TextView) convertView.findViewById(R.id.news_text_separator);
			holder.mName.setText(item.mName);
		}

		return convertView;
	}
	
	private final void sortDataByDate(){
		
		int sIndex=0;
		for(int i =0; i < mData.size(); i++){
			TelNode item =mData.get(i);
			int ssIndex = beforeToday(item.mLastDate);
			if (ssIndex != sIndex){
				sIndex = ssIndex;
				TelNode separator = new TelNode();
				separator.mName = getSeparatorName(sIndex);
				separator.mTel = null;
				mData.add(i, separator);
				i++;
			}
		}
	}
	
	public static int beforeToday(long date) {
		int sIndex;
		int bDay;
	    Time nTime = new Time();
	    nTime.setToNow();
    	Time oTime = new Time();
    	oTime.set(date);
	    int dayNow = Time.getJulianDay(nTime.normalize(true), 0);
	    int day = Time.getJulianDay(date, 0);
	    //天数差
	    bDay = dayNow - day;
	    int wDay = nTime.weekDay;
	    int nMon= nTime.month;
	    int oMon = oTime.month;
	    if (bDay == 0){
	    	sIndex = 0;
	    }
	    else if (bDay == 1){
	    	sIndex = 1;
	    }
	    else if (bDay == 2){
	    	sIndex = 2;
	    }
	    //一周之内
	    else if (bDay >2 && bDay<= wDay ){
	    	sIndex = oTime.weekDay+10;
	    }
	    //上周
	    else if (bDay > wDay && bDay <= 7 + wDay && nMon == oMon ){
	    	sIndex = 20;
	    }
	    //两周以前
	    else if (bDay > 7 + wDay && bDay <= 14 + wDay && nMon == oMon ){
	    	sIndex = 30;
	    }
	    //三周以前
	    else if (bDay >  14 + wDay -2 && bDay <= 21 + wDay && nMon == oMon ){
	    	sIndex = 40;
	    }
	    //上个月
	    else if (nMon - oMon == 1 ){
	    	sIndex = 50;
	    }
	    //更早
	    else {
	    	sIndex = 100;
	    }

	    return sIndex;
	}
	
	private String getSeparatorName(int sIndex){
		String name="更早";
		switch(sIndex){
		case 0:
			name = "今天";
			break;
		case 1:
			name = "昨天";
			break;
		case 2:
			name = "前天";
			break;
		case 10:
			name = "周天";
			break;
		case 11:
			name = "周一";
			break;
		case 12:
			name = "周二";
			break;
		case 13:
			name = "周三";
			break;
		case 14:
			name = "周四";
			break;
		case 15:
			name = "周五";
			break;
		case 16:
			name = "周六";
			break;
		case 20:
			name = "上周";
			break;
		case 30:
			name = "两周以前";
			break;
		case 40:
			name = "三周以前";
			break;
		case 50:
			name = "上月";
			break;
		default:
			name = "更早";
			break;
		}
		return name;
	
	}
}