获取筛选列表视图中项目的错误位置

我有一个列表,它在用户输入搜索字符串时过滤数据。当用户单击搜索项时,它将打开新的活动。问题是它打开了错误的意图。当用户单击项目时,位置会随着筛选列表视图的变化而变化。它总是返回第一个项目的意图,因为匹配的搜索结果总是首先显示。我少了一小部分,请帮忙。

这是我的 自定义适配器

public class Searchitemadapter extends BaseAdapter implements Filterable {
 private Home activity;
 private FriendFilter friendFilter;
 private ArrayList<B_allProducts> friendList;
 private ArrayList<B_allProducts> filteredList;

public Searchitemadapter(Home activity, ArrayList<B_allProducts> friendList) {
    this.activity = activity;
    this.friendList = friendList;
    this.filteredList = friendList;

    getFilter();
}

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

@Override
public Object getItem(int i) {
    return filteredList.get(i);
}

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

@Override
public View getView(int position, View view, ViewGroup parent) {

    final ViewHolder holder;
    final B_allProducts user = (B_allProducts) getItem(position);

    if (view == null) {
        LayoutInflater layoutInflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = layoutInflater.inflate(R.layout.lv_container_searchitem, parent, false);
        holder = new ViewHolder();
        holder.name = (TextView) view.findViewById(R.id.lv_search_pname);

        view.setTag(holder);
    } else {
        // get view holder back
        holder = (ViewHolder) view.getTag();
    }

    holder.name.setText(user.getProductName());

    return view;
}

@Override
public Filter getFilter() {
    if (friendFilter == null) {
        friendFilter = new FriendFilter();
    }

    return friendFilter;
}

static class ViewHolder {
    TextView name;
}
private class FriendFilter extends Filter {

    @Override
    protected FilterResults performFiltering(CharSequence constraint) {
        FilterResults filterResults = new FilterResults();
        if (constraint!=null && constraint.length()>0) {
            ArrayList<B_allProducts> tempList = new ArrayList<B_allProducts>();

            for (B_allProducts user : friendList) {
                if (user.getProductName().toLowerCase().contains(constraint.toString().toLowerCase())
                        ||user.getProductKeywordG().toLowerCase().contains(constraint.toString().toLowerCase())
                        ||user.getProductKeyword().toLowerCase().contains(constraint.toString().toLowerCase()))
                {
                    tempList.add(user);
                }
            }

            filterResults.count = tempList.size();
            filterResults.values = tempList;
        } else {
            filterResults.count = friendList.size();
            filterResults.values = friendList;
        }

        return filterResults;
    }

    @SuppressWarnings("unchecked")
    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {
        filteredList = (ArrayList<B_allProducts>) results.values;
        notifyDataSetChanged();
    }
  }
}

这是我的 列表视图Onitemlicklistener

 lvsearch.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {


            String pos = aphashmap.get(position).get("ProductID");
            Intent i = new Intent(SearchableActivity.this, DisplaySingleProduct.class);
            i.putExtra("ProductID",pos);

            startActivity(i);
        }
    });