自定义ListView中的前三个Element会重复，并在滚动时更改位置

我有一个自定义ListView，当我显示它时，我得到了第三个元素，并且在滚动时会重复它们。所有其他元素都不会显示。

我尝试过setTag，getTag但没有用。我发现的唯一方法是if (row = null)每次在元素上滚动时都重新构建视图（禁用），但我认为这样做不是一件好事。

这是我的getView方法（带有setTag和getTag）：

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


        View row = convertView;
        Meal meal =  getItem(position);

        if (row == null) {
            holder = new ViewHolder();
            row = LayoutInflater.from(getContext()).inflate(R.layout.custom_list, parent, false);
            holder.txtTitle = (TextView) row.findViewById(R.id.nameMeal);
            holder.img = (ImageView) row.findViewById(R.id.imageMeals);
            holder.price = (TextView) row.findViewById(R.id.textView14);
            holder.imgQuantity = (RelativeLayout) row.findViewById(R.id.hide);
            holder.soldOut = (ImageView) row.findViewById(R.id.sold_out);
            holder.descMenu = (TextView) row.findViewById(R.id.textView);
            holder.plus = (Button) row.findViewById(R.id.plus);
            holder.minus = (Button) row.findViewById(R.id.minus);


            if (User.getInstance().imgBitMap.get(meal.nameFr) == null)
                new LoadImageFromURL(holder.img, meal).execute(meal.imageRealUrl);
            else
                holder.img.setImageBitmap(User.getInstance().imgBitMap.get(meal.nameFr));

            holder.txtTitle.setText(meal.nameFr);
            holder.price.setText(meal.price + "0 €");
            setButton(row, meal);
            setImage(row, meal);
            row.setTag(holder);
        } else {
            holder = (ViewHolder) row.getTag();
        }

        holder.img.setTag(position);
        holder.plus.setTag(position);
        holder.minus.setTag(position);
        holder.txtTitle.setTag(position);
        holder.price.setTag(position);

    return row;
}