Flutter I'；我试图将object.parameter传递到自定义小部件中，但失败了

一般来说，我对颤振和编程是新手。 我正在创建一个扩展磁贴，当像标签值字段一样扩展时，会有更多关于公司的数据

import 'package:flutter/material.dart';
import '../Object.dart';

class CompanyCardStyle extends StatelessWidget {
  final Company company;
CompanyCardStyle({this.company});

@override
Widget build(BuildContext context) {
return Card(
    margin: EdgeInsets.fromLTRB(10.0, 10.0, 10.0, 0.0),
    child: ExpansionTile(
      
      title: Text(company.name),
      children: <Widget>[
        Container(
            padding: const EdgeInsets.all(15.0),
            child: Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: [
                  Column(
                    mainAxisAlignment: MainAxisAlignment.spaceAround,
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      companyLabels('Phone Number'),
                      companyLabels('Opportunities'),
                      companyLabels('Pipeline Revenue'),
                      companyLabels('Revenue Achieved'),
                    ],
                  ),
                  Container(
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.spaceAround,
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: <Widget>[
                        companyValues(company.phoneNumber),
                        SizedBox(
                          height: 10,
                        ),
                        Text(
                          company.opportunities.toString(),
                          textAlign: TextAlign.left,
                          style: TextStyle(
                              fontFamily: 'Raleway', fontSize: 15.0),
                        ),
                        SizedBox(
                          height: 10,
                        ),
                        Text(
                          company.pRevenue.toString(),
                          textAlign: TextAlign.left,
                          style: TextStyle(
                              fontFamily: 'Raleway', fontSize: 15.0),
                        ),
                        SizedBox(
                          height: 10,
                        ),
                        Text(
                          company.revenueAchieved.toString(),
                          textAlign: TextAlign.left,
                          style: TextStyle(
                              fontFamily: 'Raleway', fontSize: 15.0),
                        )
                      ],
                    ),
                  )
                ]))
      ],
      leading: CircleAvatar(child: Text(company.name[0])),
      subtitle: Text(company.address),
    ));
}

Widget companyLabels(String values) {
return Row(children: <Widget>[
  Text(
    values.toString(),
    textAlign: TextAlign.left,
    style: TextStyle(
        fontFamily: 'Raleway', fontSize: 15.0, fontWeight: FontWeight.bold),
  ),
  SizedBox(
    height: 30,
  )
]);
}

Widget companyValues(Company values) {
return Row(
  children: <Widget>[
    Text(
      company.values.toString(),
      textAlign: TextAlign.left,
      style: TextStyle(fontFamily: 'Raleway', fontSize: 15.0),
    ),
    SizedBox(
      height: 10,
    )
  ],
);
}
}

---

您的变量称为

值

。删除

公司。

前缀。

此行存在问题

companyValues(company.phoneNumber),

您正在传递字符串，但在函数中，您的参数是

公司

对象

Widget companyValues(Company values) 

---

如果我离开公司。前缀，然后我必须传递company.phoneNumber调用companyValues函数时，它会说

参数类型int不能传递给参数类型company

也不能传递给参数类型company.phoneNumber.toString（），然后将类型从

company

更改为

String

。

Widget companyValues(Company values)