logistics_tool/lib/order_list.dart

import 'dart:io';

import 'package:excel/excel.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';

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

  @override
  State<OrderList> createState() => _OrderListState();
}

class _OrderListState extends State<OrderList> {
  final List lst = [];
  List<String> headers = [];
  List<List<dynamic>> data = [];

  ScrollController scrollController = ScrollController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          backgroundColor: Colors.white,
          title: const Text("test"),
          actions: [
            IconButton(
                onPressed: () {
                  importExcelFile();
                },
                icon: const Icon(Icons.add_circle)),
            IconButton(onPressed: () {}, icon: const Icon(Icons.output))
          ],
        ),
        body: Container(
          width: double.infinity,
          // color: Colors.white,
          padding: const EdgeInsets.all(20),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Card(
                color: Colors.white,
                margin: EdgeInsets.zero,
                child: headers.isNotEmpty
                    ? /*Scrollbar(
                        // controller: scrollController,
                        child:*/
                    SingleChildScrollView(
                        scrollDirection: Axis.horizontal,
                        padding: const EdgeInsets.all(12.0),
                        child: DataTable(
                          columns: headers.map((el) {
                            return DataColumn(label: Text(el));
                          }).toList(),
                          rows: data.map((row) {
                            return DataRow(
                                cells: row.asMap().entries.map((col) {
                              String col_title = headers[col.key];
                              return DataCell(col_title == "物流名称"
                                  ? Row(
                                      children: [
                                        Text("${col.value}"),
                                        IconButton(
                                            // padding: EdgeInsets.all(2),
                                            iconSize: 12,
                                            onPressed: () {
                                              // Dialog()
                                              showDialog(
                                                  context: context,
                                                  builder: (BuildContext
                                                          context) =>
                                                      AlertDialog(
                                                        // icon: const Icon(Icons.edit),
                                                        title: const Text(
                                                            "填写物流公司"),
                                                        content: const Column(
                                                          mainAxisSize:
                                                              MainAxisSize.min,
                                                          children: [
                                                            TextField(
                                                              decoration:
                                                                  InputDecoration(
                                                                      labelText:
                                                                          "物流公司"),
                                                            )
                                                          ],
                                                        ),
                                                        actions: [
                                                          ElevatedButton(
                                                              onPressed: () {},
                                                              child: const Text(
                                                                  "取消")),
                                                          ElevatedButton(
                                                              onPressed: () {},
                                                              child: const Text(
                                                                  "确认")),
                                                        ],
                                                      ));
                                            },
                                            icon: const Icon(Icons.edit))
                                      ],
                                    )
                                  : col_title == "物流信息"
                                      ? ElevatedButton(
                                          onPressed: () {
                                            context.push("/logistics");
                                          },
                                          child: const Text("填写"),
                                        )
                                      : Text("${col.value}"));
                            }).toList());
                          }).toList(),
                        ),
                      )
                    /*)*/
                    : const Text("empty"),
              )
            ],
          ),
        ));
  }

  Future<String> importExcelFile() async {
    FilePickerResult? result = await FilePicker.platform
        .pickFiles(type: FileType.custom, allowedExtensions: ["xlsx", "xls"]);
    if (result != null) {
      File file = File(result.files.single.path!);
      var bytes = file.readAsBytesSync();
      Excel excel = Excel.decodeBytes(bytes);
      String tableKey = excel.tables.keys.first;
      List<String> _headers = excel.tables[tableKey]?.rows.first.map((el) {
            return el?.value.toString() ?? "";
          }).toList() ??
          [];
      List<List<dynamic>> _data =
          excel.tables[tableKey]?.rows.sublist(1).map((row) {
                return row.map((col) {
                  return col?.value ?? "";
                }).toList();
              }).toList() ??
              [];
      setState(() {
        headers = _headers;
        data = _data;
      });
    } else {
      //   取消选择
    }
    return "";
  }
}