baseAdapter listview不显示

[ldl123292]

    private ArrayList<HashMap<String,Object>> getData(){		 
		 try {    		
				Document doc = Jsoup.connect("http://www.3dmgame.com/").timeout(30000).get();
				Elements et = doc.getElementsByAttributeValue("class", "newList").select("li").select("a");
				for(Element e : et){
					HashMap<String,Object> map = new HashMap<String, Object>();
					String text = e.text().replace(Jsoup.parse(" ").text(), " ");
					map.put("text", text);					
					list.add(map);
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		return list;		
	}

这段代码获得的数据，使用simpleAdapter的时候可以正确显示
但是是用baseadapter的时候就不显示东西，也不提示错误
baseadapter如下:

private class NewsAdapter extends BaseAdapter{

		@Override
		public int getCount() {
			// TODO Auto-generated method stub
			return getData().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 arg0, View arg1, ViewGroup arg2) {
			// TODO Auto-generated method stub
			arg1 = LayoutInflater.from(getApplicationContext()).inflate(R.layout.newslist, null);
			TextView tv = (TextView)arg1.findViewById(R.id.textView1);
			ImageView iv = (ImageView)arg1.findViewById(R.id.imageView1);
			
			tv.setText(getData().get(arg0).get("text").toString());
			return arg1;
		}
    	
    }

但是把getData（）写成这样

private ArrayList<HashMap<String,Object>> getData(){
		 list = new ArrayList<HashMap<String,Object>>();
		 HashMap<String,Object> map = new HashMap<String, Object>();
		 for(int i = 0; i < 2; i++){
		 map.put("text", "dfdfadf");
		 map.put("text", "fdedaf");
		 }
		 list.add(map);
		return list;		
	}

这样用baseadapter就可以用了，为什么啊

[tangfei_honesty]

你确定第一个list里有数据

[ldl123292]

[Quote=引用 1 楼 的回复:]

你确定第一个list里有数据
[/Quote]
确定啊，用simpleadapter都能输出了

[j_f0001]

private class RosterAdapter extends BaseAdapter {

private LayoutInflater inflater;

private Context context;

public RosterAdapter(Context context) {
this.context = context;
inflater = LayoutInflater.from(context);
}

@Override
public int getCount() {
return userinfos.size();
}

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

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

private class ViewHolder {
TextView user;
TextView status;
}

@Override
public View getView(int position, View convertView, ViewGroup viewGroup) {

User user = userinfos.get(position);
ViewHolder viewHolder;
if (convertView == null) {
convertView = inflater.inflate(
android.R.layout.simple_list_item_2, null);
viewHolder = new ViewHolder();
viewHolder.user = (TextView) convertView
.findViewById(android.R.id.text1);
viewHolder.status = (TextView) convertView
.findViewById(android.R.id.text2);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}

// holder.user.setText(user.getUser());
System.out.println("=============getview");
System.out.println(hashOnLine.toString());
System.out.println("user:"+user.getUser());
viewHolder.user.setText(user.getUser());

String isOnline=hashOnLine.get(user.getUser());
if(isOnline==null)
isOnline="离线";
viewHolder.status.setText(hashOnLine.get(user.getUser()));

return convertView;
}


你参考一下这个

[android_baiyuchuan]

@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;
}
你返回的都是空的，没东西

[tangfei_honesty]

[Quote=引用 2 楼 的回复:]

引用 1 楼 的回复:

你确定第一个list里有数据

确定啊，用simpleadapter都能输出了
[/Quote]
好像第一个少了点什么，list没初始化
list = new ArrayList<HashMap<String,Object>>();

[傲慢的上校]

[Quote=引用 5 楼 的回复:]

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

@Override
public long getItemId(int a……
[/Quote]