ListView输出错误

Question

我正在尝试使用以下代码在listview中添加元素：

HashMap<String, Object> _item = new HashMap<>();
_item.put("converttype", result.getText().toString());
list.add(_item);

public View getView(final int _position, View _view, ViewGroup _viewGroup) {
        LayoutInflater _inflater = (LayoutInflater) getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View _v = _view;
        if (_v == null) {
            _v = _inflater.inflate(R.layout.listview, null);
        }

final TextView converttype = (TextView) _v.findViewById(R.id.converttype);

converttype.setText(list.get((int)_position).get("converttype").toString());

return _v
}

它应输出：

1.4

但它始终输出：

{converttype = 1.4}