条件语句对2个函数进行分类（在firebase/Flutter中使用字段值）

Question

我希望条件语句将集合中“dropdowncompany”字段数据的 2 个函数分类为“pr_details”，因此它们是该字段中的两个值

1. "dropdowncompany":"ซินเนติก"
2. "dropdowncompany":"ซินโนวิค"

-----示例图片--------- --------示例图片---------

我真正需要的是条件语句函数

1. if ("dropdowncompany" == "ซินเนติก") --> return 函数名称为“OverviewPurchase()”（公司名称与蓝色框同步）
2. if ("dropdowncompany" == "ซินโนวิค") --> 返回函数名称为“OverviewPurchase1()”（带有绿色框的公司名称 Synovic）

---------概述Purchase()函数------------

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

class OverviewPurchase extends StatefulWidget {
  const OverviewPurchase({super.key});

  @override
  State<OverviewPurchase> createState() => _OverviewPurchaseState();
}

class _OverviewPurchaseState extends State<OverviewPurchase> {
  @override
  Widget build(BuildContext context) {
    Size size = MediaQuery.of(context).size;

    return Scaffold(
      body: StreamBuilder(
          stream:
              FirebaseFirestore.instance.collection("pr_details").snapshots(),
          builder: (context, AsyncSnapshot<QuerySnapshot> snapshot) {
            if (!snapshot.hasData) {
              return Center(
                child: CircularProgressIndicator(),
              );
            }
            return Padding(
              padding: EdgeInsets.all(60.0),
              child: Container(
                width: size.width * 0.2,
                child: ListView(
                    children: snapshot.data!.docs.map((document) {
                  return Column(
                    children: [
                      SizedBox(
                        height: 30,
                      ),
                      Card(
                          borderOnForeground: true,
                          color: Colors.lightBlueAccent[100],
                          child: ListTile(
                              leading: IconButton(
                                onPressed: () {},
                                alignment: Alignment.topLeft,
                                icon: Icon(Icons.list_alt_outlined),
                                iconSize: 30,
                              ),
                              title: Column(
                                mainAxisAlignment:
                                    MainAxisAlignment.spaceAround,
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: [
                                  Chip(
                                    label: Text("ใบขอซื้อ Synatic"),
                                    backgroundColor: Colors.deepPurpleAccent,
                                    labelStyle: TextStyle(color: Colors.white),
                                  ),
                                  SizedBox(
                                    height: 20,
                                  ),
                                ],
                              ),
                              subtitle: Column(
                                mainAxisAlignment:
                                    MainAxisAlignment.spaceAround,
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: [
                                  Text(document["purchase_req"]),
                                  Text("บริษัท  :  " +
                                      document["dropdowncompany"]),
                                  Text("แผนก  :  " + document["dropdowndep"]),
                                  Text("ประเภทงาน  :  " +
                                      document["dropdownwork"]),
                                  Text(
                                      "ชื่อ-นามสกุล  :  " + document["fsname"]),
                                  //Text("แผนก  :  " + document["department"]),
                                  Text(
                                      "วันที่เขียน  :  " + document["date_pr"]),
                                  Text(
                                      "จำนวนรายการ  :  ${int.parse((document['number1']).length.toString()) + int.parse((document['number2']).length.toString()) + int.parse((document['number3']).length.toString()) + int.parse((document['number4']).length.toString()) + int.parse((document['number5']).length.toString()) + int.parse((document['number6']).length.toString()) + int.parse((document['number7']).length.toString()) + int.parse((document['number8']).length.toString()) + int.parse((document['number9']).length.toString()) + (int.parse((document['number10']).length.toString()) - 1)}")
                                ],
                              ))),
                    ],
                  );
                }).toList()),
              ),
            );
          }),
    );
  }
}

---------概述Purchase()函数------------

----------概述Purchase1()函数------------

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

class OverviewPurchase1 extends StatefulWidget {
  const OverviewPurchase1({super.key});

  @override
  State<OverviewPurchase1> createState() => _OverviewPurchase1State();
}

class _OverviewPurchase1State extends State<OverviewPurchase1> {
  @override
  Widget build(BuildContext context) {
    Size size = MediaQuery.of(context).size;
    return Scaffold(
      body: StreamBuilder(
          stream:
              FirebaseFirestore.instance.collection("pr_details").snapshots(),
          builder: (context, AsyncSnapshot<QuerySnapshot> snapshot) {
            if (!snapshot.hasData) {
              return Center(
                child: CircularProgressIndicator(),
              );
            }
            return Padding(
              padding: EdgeInsets.all(60.0),
              child: Container(
                width: size.width * 0.2,
                child: ListView(
                    children: snapshot.data!.docs.map((document) {
                  return Column(
                    children: [
                      SizedBox(
                        height: 30,
                      ),
                      Card(
                          borderOnForeground: true,
                          color: Colors.lightGreenAccent[100],
                          child: ListTile(
                              leading: IconButton(
                                onPressed: () {},
                                alignment: Alignment.topLeft,
                                icon: Icon(Icons.list_alt_outlined),
                                iconSize: 30,
                              ),
                              title: Column(
                                mainAxisAlignment:
                                    MainAxisAlignment.spaceAround,
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: [
                                  Chip(
                                    label: Text("ใบขอซื้อ Synovic"),
                                    backgroundColor: Colors.deepPurpleAccent,
                                    labelStyle: TextStyle(color: Colors.white),
                                  ),
                                  SizedBox(
                                    height: 20,
                                  ),
                                ],
                              ),
                              subtitle: Column(
                                mainAxisAlignment:
                                    MainAxisAlignment.spaceAround,
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: [
                                  Text(document["purchase_req"]),
                                  Text("บริษัท  :  " +
                                      document["dropdowncompany"]),
                                  Text("แผนก  :  " + document["dropdowndep"]),
                                  Text("ประเภทงาน  :  " +
                                      document["dropdownwork"]),
                                  Text(
                                      "ชื่อ-นามสกุล  :  " + document["fsname"]),
                                  Text(
                                      "วันที่เขียน  :  " + document["date_pr"]),
                                  Text(
                                      "จำนวนรายการ  :  ${int.parse((document['number1']).length.toString()) + int.parse((document['number2']).length.toString()) + int.parse((document['number3']).length.toString()) + int.parse((document['number4']).length.toString()) + int.parse((document['number5']).length.toString()) + int.parse((document['number6']).length.toString()) + int.parse((document['number7']).length.toString()) + int.parse((document['number8']).length.toString()) + int.parse((document['number9']).length.toString()) + (int.parse((document['number10']).length.toString()) - 1)}")
                                ],
                              ))),
                    ],
                  );
                }).toList()),
              ),
            );
          }),
    );
  }
}

----------概述Purchase1()函数------------

最后输出的应该是这张公会图片

Answer 1

很难理解你的问题。根据我的理解，如果companyName = 'A'，则在蓝色容器中显示数据，如果companyName = 'B'，则在绿色容器中显示数据。 我在这两个文件中运行了差异检查器，唯一的区别是颜色和标题。

color: document["dropdowncompany"] == 'ซินเนติก' ? Colors.lightBlueAccent[100] : Colors.lightGreenAccent[100],

这是要做的改变。您可以对标题进行类似的更改。另外，您不需要制作 2 个小部件。只需要1个

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

class OverviewPurchase extends StatefulWidget {
  const OverviewPurchase({super.key});

  @override
  State<OverviewPurchase> createState() => _OverviewPurchaseState();
}

class _OverviewPurchaseState extends State<OverviewPurchase> {
  @override
  Widget build(BuildContext context) {
    Size size = MediaQuery.of(context).size;

    return Scaffold(
      body: StreamBuilder(
          stream:
              FirebaseFirestore.instance.collection("pr_details").snapshots(),
          builder: (context, AsyncSnapshot<QuerySnapshot> snapshot) {
            if (!snapshot.hasData) {
              return Center(
                child: CircularProgressIndicator(),
              );
            }
            return Padding(
              padding: EdgeInsets.all(60.0),
              child: Container(
                width: size.width * 0.2,
                child: ListView(
                    children: snapshot.data!.docs.map((document) {
                  return Column(
                    children: [
                      SizedBox(
                        height: 30,
                      ),
                      Card(
                          borderOnForeground: true,
                         color: document["dropdowncompany"] == 'ซินเนติก' ? Colors.lightBlueAccent[100] : Colors.lightGreenAccent[100],
                          child: ListTile(
                              leading: IconButton(
                                onPressed: () {},
                                alignment: Alignment.topLeft,
                                icon: Icon(Icons.list_alt_outlined),
                                iconSize: 30,
                              ),
                              title: Column(
                                mainAxisAlignment:
                                    MainAxisAlignment.spaceAround,
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: [
                                  Chip(
                                    label: Text("ใบขอซื้อ Synatic"),
                                    backgroundColor: Colors.deepPurpleAccent,
                                    labelStyle: TextStyle(color: Colors.white),
                                  ),
                                  SizedBox(
                                    height: 20,
                                  ),
                                ],
                              ),
                              subtitle: Column(
                                mainAxisAlignment:
                                    MainAxisAlignment.spaceAround,
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: [
                                  Text(document["purchase_req"]),
                                  Text("บริษัท  :  " +
                                      document["dropdowncompany"]),
                                  Text("แผนก  :  " + document["dropdowndep"]),
                                  Text("ประเภทงาน  :  " +
                                      document["dropdownwork"]),
                                  Text(
                                      "ชื่อ-นามสกุล  :  " + document["fsname"]),
                                  //Text("แผนก  :  " + document["department"]),
                                  Text(
                                      "วันที่เขียน  :  " + document["date_pr"]),
                                  Text(
                                      "จำนวนรายการ  :  ${int.parse((document['number1']).length.toString()) + int.parse((document['number2']).length.toString()) + int.parse((document['number3']).length.toString()) + int.parse((document['number4']).length.toString()) + int.parse((document['number5']).length.toString()) + int.parse((document['number6']).length.toString()) + int.parse((document['number7']).length.toString()) + int.parse((document['number8']).length.toString()) + int.parse((document['number9']).length.toString()) + (int.parse((document['number10']).length.toString()) - 1)}")
                                ],
                              ))),
                    ],
                  );
                }).toList()),
              ),
            );
          }),
    );
  }
}