android自定义视图

我在解析webservice响应后获得了一个列表。我已经使用BaseAdapter创建了一个customview。我面临的问题是无法使用我创建的customview将数据绑定到ListView。以下是我的自定义视图：

public class ItemListBaseAdapter extends BaseAdapter {

    int layoutResourceId;  

    private static List<Item> itemDetailsarrayList;


    private LayoutInflater l_Inflater;

    public ItemListBaseAdapter(Context context, List<Item> results) {
        itemDetailsarrayList = results;
        l_Inflater = LayoutInflater.from(context);
    }
    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return 0;
    }

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

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        ViewHolder holder;
        if (convertView == null) {
            convertView = l_Inflater.inflate(R.layout.row_layout, null);
            holder = new ViewHolder();
            holder.txtTitle = (TextView) convertView.findViewById(R.id.textView1);         
        convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        holder.txtTitle.setText(itemDetailsarrayList.get(position).getCity_name());
        return convertView;
     }

     static class ViewHolder {   
        TextView txtTitle;
     }
}

---

将您的代码替换为以下代码：请参阅magic

public class ItemListBaseAdapter extends BaseAdapter {

     int layoutResourceId;  

    private static List<Item> itemDetailsarrayList;


    private LayoutInflater l_Inflater;

     public ItemListBaseAdapter(Context context, List<Item> results) {
      itemDetailsarrayList = results;
      l_Inflater = LayoutInflater.from(context);
     }
    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return itemDetailsarrayList.size();


    }

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

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
         ViewHolder holder;
          if (convertView == null) {
           convertView = l_Inflater.inflate(R.layout.row_layout, null);
           holder = new ViewHolder();
           holder.txtTitle = (TextView) convertView.findViewById(R.id.textView1);          
           convertView.setTag(holder);
          } else {
           holder = (ViewHolder) convertView.getTag();
          }

          holder.txtTitle.setText(itemDetailsarrayList.get(position).getCity_name());
          return convertView;
     }

     static class ViewHolder {

         TextView txtTitle;

     }
}

---

请看一下getCount方法：

@Override
public int getCount() {
    // TODO Auto-generated method stub
    return itemDetailsarrayList.size();

}

解决方案是返回适配器包含的完整项的计数。

---

您应该了解必须实现的任何方法！不仅让eclipse生成方法。那时候它们只是存根。如果您不知道在这些方法中要做什么，开发人员文档将为您提供一个非常好的视图。

getCount始终返回0。那不好对不起，Q.C.先生，我想你可能是对的。你能告诉我我能换什么吗。因为我是android和网络消费的新手。我遇到了同样的问题，你在代码中做了哪些改变？？请检查此答案。您能给我您的web服务URL吗？thnx的链接：。可以给我你的电子邮件id吗？？？。请检查我的堆栈配置文件：dhaval，这是我从webservice得到的回复。班加罗尔2钦奈3海得拉巴我已经分析过了。现在我在绑定到定制的listview时遇到了问题。

@Override
public int getCount() {
    // TODO Auto-generated method stub
    return itemDetailsarrayList.size();

}