NotificationListAdapter.java

package net.oschina.gitapp.adapter;

import java.util.List;

import net.oschina.gitapp.R;
import net.oschina.gitapp.bean.Notification;
import net.oschina.gitapp.bean.ProjectNotification;
import net.oschina.gitapp.bean.URLs;
import net.oschina.gitapp.bean.User;
import net.oschina.gitapp.common.BitmapManager;
import net.oschina.gitapp.common.StringUtils;
import net.oschina.gitapp.common.UIHelper;
import android.content.Context;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.BaseExpandableListAdapter;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * 通知列表适配器
 * @created 2014-07-07
 * @author 火蚁（http://my.oschina.net/LittleDY）
 * 
 * 最后更新：2014-07-08
 * 更新者：火蚁
 * 
 * @reason 改用分类的适配器
 */
public class NotificationListAdapter extends BaseExpandableListAdapter {
	
	private Context 					mContext;
	
	private List<List<Notification>>	mData;
	
	private List<ProjectNotification>	mGroups;
	
	private LayoutInflater 				mInflater;
	
	private BitmapManager 				bmpManager;
	
	private class GroupViewHolder{
		public ImageView mGroupFace;
		public TextView mGroupUserName;
		public TextView mGroupName;
		public TextView mGroupCount;
	} 
	
	private class ChildViewHolder {  
		public ImageView face;
		public TextView user_name;
		public TextView title;
		public TextView date;//日期 
    } 
	
	public NotificationListAdapter(Context context, List<List<Notification>> data, List<ProjectNotification> mGroups) {
		this.mContext = context;
		this.mData = data;
		this.mInflater = LayoutInflater.from(mContext);
		this.mGroups = mGroups;
		this.bmpManager = new BitmapManager(BitmapFactory.decodeResource(
				context.getResources(), R.drawable.widget_dface_loading));
	}
	
	@Override
	public int getGroupCount() {
		return mData.size();
	}

	@Override
	public int getChildrenCount(int groupPosition) {
		return mData.get(groupPosition).size();
	}

	@Override
	public List<Notification> getGroup(int groupPosition) {
		return mData.get(groupPosition);
	}

	@Override
	public Notification getChild(int groupPosition, int childPosition) {
		return getGroup(groupPosition).get(childPosition);
	}

	@Override
	public long getGroupId(int groupPosition) {
		return groupPosition;
	}

	@Override
	public long getChildId(int groupPosition, int childPosition) {
		return childPosition;
	}

	@Override
	public boolean hasStableIds() {
		return false;
	}
	
	// 返回分组的view
	@Override
	public View getGroupView(int groupPosition, boolean isExpanded,
			View convertView, ViewGroup parent) {
		GroupViewHolder holder = null;
		if (convertView == null) {  
            convertView = mInflater.inflate(R.layout.notification_group_item, null);  
            
            holder = new GroupViewHolder();
            
            holder.mGroupFace = (ImageView) convertView.findViewById(R.id.group_face);
            holder.mGroupUserName = (TextView) convertView.findViewById(R.id.group_username);
            holder.mGroupCount = (TextView) convertView.findViewById(R.id.group_count);
            holder.mGroupName = (TextView) convertView.findViewById(R.id.group_name);
            
            convertView.setTag(holder);
        } else {
        	holder = (GroupViewHolder) convertView.getTag();
        } 
        
		ProjectNotification pn = mGroups.get(groupPosition);
		
		// 加载头像
		String portrait = pn.getOwner().getPortrait() == null ? "" : pn.getOwner().getPortrait();
		if (portrait.endsWith("portrait.gif") || StringUtils.isEmpty(portrait)) {
			holder.mGroupFace.setImageResource(R.drawable.mini_avatar);
		} else {
			String portraitURL = URLs.GITIMG + pn.getOwner().getPortrait();
			bmpManager.loadBitmap(portraitURL, holder.mGroupFace);
		}
//		String portraitURL = pn.getOwner().getNew_portrait();
//		if (portraitURL.endsWith("portrait.gif")) {
//			holder.mGroupFace.setImageResource(R.drawable.mini_avatar);
//		} else {
//			bmpManager.loadBitmap(portraitURL, holder.mGroupFace);
//		}
        
        holder.mGroupUserName.setText(pn.getOwner().getName());
        
        holder.mGroupName.setText(pn.getName());  
        
        holder.mGroupCount.setText(mData.get(groupPosition).size() + "");
        
        // 更换状态图标
        ImageView parentImageViw=(ImageView) convertView.findViewById(R.id.group_arrow);
        //判断isExpanded就可以控制是按下还是关闭，同时更换图片
		if (isExpanded) {
			parentImageViw.setBackgroundResource(R.drawable.notice_group_arrow_down);
		} else {
			parentImageViw.setBackgroundResource(R.drawable.notice_group_arrow_up);
		}
	    
        return convertView; 
	}
	
	@Override
	public View getChildView(int groupPosition, int childPosition,
			boolean isLastChild, View convertView, ViewGroup parent) {
		ChildViewHolder holder = null;
		if (convertView == null) {  
            convertView = mInflater.inflate(R.layout.notification_listitem, null);
            
            holder = new ChildViewHolder();
            
            holder.face = (ImageView) convertView.findViewById(R.id.notification_listitem_userface);
            holder.user_name = (TextView) convertView.findViewById(R.id.notification_listitem_name);
            holder.title = (TextView) convertView.findViewById(R.id.notification_listitem_title);
            holder.date = (TextView) convertView.findViewById(R.id.notification_listitem_date);
            
            convertView.setTag(holder);
        } else {
        	holder = (ChildViewHolder) convertView.getTag();
        }
        
        final Notification notification = getChild(groupPosition, childPosition);
        
        // 1.加载头像
        String portrait = notification.getUserinfo().getPortrait() == null ? "" : notification.getUserinfo().getPortrait();
		if (portrait.endsWith("portrait.gif") || StringUtils.isEmpty(portrait)) {
			holder.face.setImageResource(R.drawable.widget_dface);
		} else {
			String portraitURL = URLs.GITIMG + notification.getUserinfo().getPortrait();
			bmpManager.loadBitmap(portraitURL, holder.face);
		}
//		String portraitURL = notification.getUserinfo().getNew_portrait();
//		if (portraitURL.endsWith("portrait.gif")) {
//			holder.face.setImageResource(R.drawable.mini_avatar);
//		} else {
//			bmpManager.loadBitmap(portraitURL, holder.face);
//		}
		
		holder.face.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				User user = notification.getUserinfo();
				if (user == null) {
					return;
				}
				UIHelper.showUserInfoDetail(mContext, user, null);
			}
		});
		
		holder.user_name.setText(notification.getUserinfo().getName());
		
		holder.title.setText(notification.getTitle());
		
		holder.date.setText(StringUtils.friendly_time(notification.getCreated_at()));
         
        return convertView; 
	}

	@Override
	public boolean isChildSelectable(int groupPosition, int childPosition) {
		return true;
	}
}