eitc-erm-app/lib/select_department.dart

import 'dart:async';
import 'dart:io';

import 'package:eitc_erm_app/utils/Component.dart';
import 'package:eitc_erm_app/utils/Constants.dart';
import 'package:eitc_erm_app/utils/logger.dart';
import 'package:eitc_erm_app/widget/loading.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;

import 'bean/department.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(SelectDepartment());
}

class SelectDepartment extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => SelectDepartmentState();
}

class SelectDepartmentState extends State<SelectDepartment> {
  ValueNotifier<dynamic> result = ValueNotifier(null);
  late Future<Department?> _future;
  TextEditingController mController = TextEditingController();
  String searchDeptName = "";

  @override
  void initState() {
    super.initState();
    _future = fetchData();
  }

  Future<Department?> fetchData() async {
    logd(Global.token);
    final response = await http.get(
        Uri.parse('${Global.BaseUrl}sys-dept/list?deptName=$searchDeptName'),
        headers: jsonHeaders(withToken: true));
    if (response.statusCode == 200) {
      final json = decodeBodyToJson(response.bodyBytes);
      logd("搜索结果=$json");
      Department mDepartment = Department.fromJson(json);
      return mDepartment;
    } else {
      Component.toast("出错了，请稍后再试！", 0);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          backgroundColor: Global.StatusBarColor,
          title: Container(
            decoration: BoxDecoration(
                color: Colors.white, borderRadius: BorderRadius.circular(90)),
            child: TextField(
              maxLines: 1,
              controller: mController,
              style: const TextStyle(fontSize: 12),
              textInputAction: TextInputAction.search,
              onSubmitted: (_) => _doSearch(),
              decoration: const InputDecoration(
                isDense: true,
                hintText: "请输入要搜索的科室名称",
                hintStyle: TextStyle(color: Colors.grey, fontSize: 12),
                contentPadding:
                    EdgeInsets.symmetric(horizontal: 10, vertical: 8),
                border: OutlineInputBorder(
                  borderSide: BorderSide.none,
                ),
              ),
            ),
          ),
          titleSpacing: 0,
          leading: IconButton(
              color: Colors.white,
              onPressed: () => Navigator.pop(context),
              icon: const Icon(Icons.arrow_back_ios)),
          actions: [
            IconButton(
                color: Colors.white,
                onPressed: _doSearch,
                icon: const Icon(Icons.search))
          ],
        ),
        body: FutureBuilder<Department?>(
          future: _future,
          builder: (context, snapshot) {
            if (snapshot.hasData) {
              Department? data = snapshot.data;
              return ListView.separated(
                shrinkWrap: true,
                itemCount: data?.data?.length ?? 0,
                itemBuilder: (context, index) {
                  return InkWell(
                    onTap: () =>
                        Navigator.pop(context, data.data?[index].deptName),
                    child: Padding(
                      padding: const EdgeInsets.symmetric(
                          horizontal: 10, vertical: 10),
                      child: Text('${data!.data?[index].deptName}'),
                    ),
                  );
                },
                separatorBuilder: (BuildContext context, int index) =>
                    const Divider(),
              );
            } else if (snapshot.hasError) {
              return Text('Error: ${snapshot.error}');
            }
            return const ColorLoader();
          },
        ));
  }

  void _doSearch() {
    setState(() {
      searchDeptName = mController.text;
      _future = fetchData();
    });
  }
}