ChatAdapter.java

package com.partynetwork.iparty.imessage;

import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

import com.partynetwork.dataprovider.util.TimeUtil;
import com.partynetwork.iparty.R;
import com.partynetwork.iparty.app.entities.IMessage;

public class ChatAdapter extends BaseAdapter {

	List<IMessage> iList;
	Context context;
	
	public ChatAdapter(Context context, List<IMessage> list) {
		super();
		iList = list;
		this.context = context;
	}

	public void refreshList() {
		// 设置是否显示时间
		String oldTime = "";
		for (int i = 0; i < iList.size(); i++) {
			IMessage message = iList.get(i);
			if (i == 0) {
				message.setNeedTime(1);
			} else {
				long bet = Math
						.abs(TimeUtil.between(oldTime, message.getTime()));
				// 显示时间的间隔为30分钟
				if (bet / 60 > 30) {
					message.setNeedTime(1);
				} else {
					message.setNeedTime(0);
				}
			}
			oldTime = message.getTime();
		}
		this.notifyDataSetChanged();
	}

	@Override
	public int getCount() {
		return iList == null ? 0 : iList.size();
	}

	@Override
	public Object getItem(int position) {
		return iList.get(position);
	}

	@Override
	public long getItemId(int position) {
		return position;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		IMessage message=(IMessage) getItem(position);
		if (message.getIsCome()==1) {
			convertView = LayoutInflater.from(context).inflate(
					R.layout.imessage_chat_message_left, null);
		} else {
			convertView = LayoutInflater.from(context).inflate(
					R.layout.imessage_chat_message_right, null);
		}

		ChatHolder holder = new ChatHolder(convertView, context);
		holder.initDate(message);
		return convertView;
	}

	public void setList(List<IMessage> message_pool) {
		iList = message_pool;
	}

}