在颤动中生成路由时基数-10数字索引无效

Question

当我尝试使用onGenerateRouter生成页面路由时，我得到了"Invalid radix-10 numberindex“错误

页面url : /offer/3

onGenerateRoute: (RouteSettings settings){
      if(!_isAuthorized){
        return MaterialPageRoute<bool>(
          builder: (BuildContext context) => Login()
        );
      }
      final List<String> pathElements = settings.name.split('/');
      if(pathElements[0] !='') {
        return null;
      }
      if(pathElements[1] == 'offer') {
        final int offerId = int.parse(pathElements[2]);
        return MaterialPageRoute(
          builder: (BuildContext context) => OfferDetailsPage(offerId)
        );
      }
    }

Answer 1

FormatException通常会抛出“无效的基数-10数”错误。检查由int.parse(pathElements[2]);格式化的值，看看它是否是一个有效的整数。