Code Copilot AI生成代码浅测

导言

评测布景

近年来，人工智能技能在软件开发范畴取得了显著的发展，其间包含AI生成代码的运用。AI生成代码是指运用机器学习和自然言语处理等技能，让计算机能够依据给定的问题或需求主动生成代码。

AI生成代码的概念引发了广泛的研讨和探究。传统的编码进程需求开发人员具有深化的编程知识和经验，而AI生成代码则供给了一种愈加快捷和高效的方式来创立代码。它能够主动化部分编码使命，削减人为的过错和繁琐的重复作业，一起进步开发效率和生产力。

评测目的

评测AI生成代码的目的是为了深化了解该技能在软件开发中的运用和潜力。经过评测，咱们能够评价AI生成代码的优势、约束和适用范围。

评测概述

本次评测旨在对AI生成代码技能进行全面评价，探究其在软件开发范畴的运用和潜力。咱们将对不同的AI生成代码模型和办法进行测验，以评价其生成代码的质量、效率和立异性。

涉及到的东西：

• GitHub Copilot
• GPT3.5
• Bard
• Bing

评测办法

评测维度

• 代码质量评价：

  • 咱们将对AI生成的代码进行质量评价，包含代码的结构、逻辑、命名规范、注释和可读性等方面。经过比较生成代码与手动编写代码的质量差异，咱们能够评价AI生成代码在实践项目中的可用性和实用性。

• 开发效率比较：

  • 咱们将比较运用AI生成代码和传统手动编写代码的开发效率。经过丈量开发时刻、作业量和代码重用程度等指标，咱们能够评价AI生成代码在加速开发进程和削减开发作业量方面的才能。

• 立异性和多样性剖析：

  • 咱们将关注AI生成代码的立异性和多样性。评价AI系统在生成代码时是否能供给不同的解决计划和代码风格，以促进立异和灵活性。

• 范畴适应性测验：

  • 咱们将测验不同范畴和复杂度的编码使命，评价AI生成代码技能在特定范畴的适应性和功用表现。

评测场景

• 代码生成
  • 生成函数
  • 生成API调用
  • 类型注释
  • UI组件
  • 套路代码
• 问题修正
  • 类型过错
  • 未界说的变量
  • 未捕捉的反常
  • 未完结的接口办法
• 代码重构
  • 合理的变量和函数命名
  • 消除重复代码
  • 简化条件句子
  • 潜在的功用问题
• UT生成
  • 纯函数
  • 包含UI操作
  • 依靠全局变量
  • 包含异步操作
• 文档编写
  • 纯函数
  • UI组件
  • 技能计划

评测结果

代码生成

生成函数

GitHub Copilot

/// 用dart生成一个函数把一个数组分红N个数组
List<List<int>> splitList(List<int> list, int n) {
	var result = <List<int>>[];
	var temp = <int>[];
	for (var i = 0; i < list.length; i++) {
		temp.add(list[i]);
		if ((i + 1) % n == 0) {
			result.add(temp);
			temp = <int>[];
		}
	}
	if (temp.isNotEmpty) {
		result.add(temp);
	}
	return result;
}

GPT3.5

/// 用dart生成一个函数把一个数组分红N个数组
List<List<T>> splitArray<T>(List<T> array, int N) {
  final int totalLength = array.length;
  final int chunkSize = (totalLength / N).ceil();
  final List<List<T>> result = [];
  for (int i = 0; i < totalLength; i += chunkSize) {
    final List<T> chunk = array.sublist(i, i + chunkSize);
    result.add(chunk);
  }
  return result;
}

Bard

/// Use dart to generate a function to divide an array into N arrays
List<List<int>> divideArray(List<int> array, int n) {
  if (n <= 0) {
    throw ArgumentError('n must be positive');
  }
  List<List<int>> chunks = [];
  for (int i = 0; i < array.length; i += n) {
    chunks.add(array.sublist(i, min(i + n, array.length)));
  }
  return chunks;
}

Bing

/// 用dart生成一个函数把一个数组分红N个数组
List<List<T>> splitArray<T>(List<T> array, int n) {
  if (n <= 0) throw ArgumentError('n must be positive');
  final result = <List<T>>[];
  final chunkSize = (array.length / n).ceil();
  for (var i = 0; i < array.length; i += chunkSize) {
    result.add(array.sublist(i, i + chunkSize));
  }
  return result;
}

生成API调用

GitHub Copilot

// 运用dio并用生成的rest建议一个POST恳求，恳求payload参数为 { name: '111',age: 333, } 恳求path是 https://api.example.com/api/v1/test/ 把回来的数据打印出来
void postRequest() async {
	// 生成的rest
	const rest = 'https://api.example.com/api/v1/test/';
	// 运用dio建议一个POST恳求
	// 参数 [rest]: 恳求的地址
	// 参数 [data]: 恳求的数据
	final response = await dio.post(rest, data: {
	'name': '111',
	'age': 333,
	});
	// 打印回来的数据
	print(response.data);
}

GPT3.5

// 运用dio并用生成的rest建议一个POST恳求，恳求payload参数为 { name: '111',age: 333, } 恳求path是 https://api.example.com/api/v1/test/ 把回来的数据打印出来
import 'package:dio/dio.dart';
void main() async {
  final dio = Dio();
  final payload = {
    'name': '111',
    'age': 333,
  };
  final url = 'https://api.example.com/api/v1/test/';
  try {
    final response = await dio.post(url, data: payload);
    print(response.data);
  } catch (e) {
    print('Error: $e');
  }
}

Bard

/// Use dio and use the generated rest to initiate a POST request, the request payload parameter is { name: '111', age: 333, } The request path is https://api.example.com/api/v1/test/ Send the returned data print it out
import 'package:dio/dio.dart';
void main() async {
  // Create a Dio instance
  Dio dio = Dio();
  // Set the request headers
  dio.options.headers['Content-Type'] = 'application/json';
  // Create the request payload
  Map<String, dynamic> data = {
    'name': '111',
    'age': 333,
  };
  // Initiate the POST request
  Response response = await dio.post('https://api.example.com/api/v1/test/', data: data);
  // Check the response status code
  if (response.statusCode == 200) {
    // Print the returned data
    print(response.data);
  } else {
    // Handle the error
    print('Error: ${response.statusCode}');
  }
}

Bing

/// 运用dio并用生成的rest建议一个POST恳求，恳求payload参数为 { name: '111',age: 333, } 恳求path是 https://api.example.com/api/v1/test/ 把回来的数据打印出来
import 'package:dio/dio.dart';
void main() async {
  final dio = Dio();
  final payload = {'name': '111', 'age': 333};
  final response = await dio.post(
    'https://api.example.com/api/v1/test/',
    data: payload,
  );
  print(response.data);
}

类型注释

// 给下面的dart函数增加注释
String timePeriodCompositor(Map<String, dynamic> timePeriod) {
  final bool hasMonday = timePeriod['hasMonday'];
  final bool hasTuesday = timePeriod['hasTuesday'];
  final bool hasWednesday = timePeriod['hasWednesday'];
  final bool hasThursday = timePeriod['hasThursday'];
  final bool hasFriday = timePeriod['hasFriday'];
  final bool hasSaturday = timePeriod['hasSaturday'];
  final bool hasSunday = timePeriod['hasSunday'];
  final bool hasLegalHolidays = timePeriod['hasLegalHolidays'];
  final int startHour = timePeriod['startHour'];
  final int startMinute = timePeriod['startMinute'];
  final int endHour = timePeriod['endHour'];
  final int endMinute = timePeriod['endMinute'];
  final Map<int, String> dayMap = {
    1: '周一',
    2: '周二',
    3: '周三',
    4: '周四',
    5: '周五',
    6: '周六',
    7: '周日',
  };
  final List<int> dayArray = [
    hasMonday ? 1 : 0,
    hasTuesday ? 2 : 0,
    hasWednesday ? 3 : 0,
    hasThursday ? 4 : 0,
    hasFriday ? 5 : 0,
    hasSaturday ? 6 : 0,
    hasSunday ? 7 : 0,
  ];
  final String dayDesc = dayArray
      .join('')
      .split('0')
      .map((chunk) {
    switch (chunk.length) {
      case 0:
        return '';
      case 1:
        return dayMap[int.parse(chunk[0])];
      case 2:
        return '${dayMap[int.parse(chunk[0])]}、${dayMap[int.parse(chunk[1])]}';
      case 7:
        return '每天';
      default:
        return '${dayMap[int.parse(chunk[0])]} ~ ${dayMap[int.parse(chunk[chunk.length - 1])]}}';
    }
  })
      .where((str) => str?.isNotEmpty == true)
      .join('、');
  final String timeDesc =
      '$startHour:$startMinute ~ ${endHour == 23 && endMinute == 59 ? '24:00' : '$endHour:$endMinute'}';
  return '$dayDesc，$timeDesc，${hasLegalHolidays ? '' : '除'}法定节假日可用';
}

GitHub Copilot

// 给下面的dart函数增加类型注释
/// Composes a time period string based on the given map of time period data.
///
/// The time period data should contain the following keys:
/// - hasMonday: a boolean indicating whether the time period includes Mondays
/// - hasTuesday: a boolean indicating whether the time period includes Tuesdays
/// - hasWednesday: a boolean indicating whether the time period includes Wednesdays
/// - hasThursday: a boolean indicating whether the time period includes Thursdays
/// - hasFriday: a boolean indicating whether the time period includes Fridays
/// - hasSaturday: a boolean indicating whether the time period includes Saturdays
/// - hasSunday: a boolean indicating whether the time period includes Sundays
/// - hasLegalHolidays: a boolean indicating whether the time period includes legal holidays
/// - startHour: an integer indicating the starting hour of the time period
/// - startMinute: an integer indicating the starting minute of the time period
/// - endHour: an integer indicating the ending hour of the time period
/// - endMinute: an integer indicating the ending minute of the time period
///
/// Returns a string describing the time period in the format:
/// "{dayDesc}，{timeDesc}，{availabilityDesc}"
///
/// where:
/// - dayDesc: a string describing the days of the week the time period is available
/// - timeDesc: a string describing the time range of the time period
/// - availabilityDesc: a string indicating whether the time period is available during legal holidays
String timePeriodCompositor(Map<String, dynamic> timePeriod) {
  final bool hasMonday = timePeriod['hasMonday'];
  final bool hasTuesday = timePeriod['hasTuesday'];
  final bool hasWednesday = timePeriod['hasWednesday'];
  final bool hasThursday = timePeriod['hasThursday'];
  final bool hasFriday = timePeriod['hasFriday'];
  final bool hasSaturday = timePeriod['hasSaturday'];
  final bool hasSunday = timePeriod['hasSunday'];
  final bool hasLegalHolidays = timePeriod['hasLegalHolidays'];
  final int startHour = timePeriod['startHour'];
  final int startMinute = timePeriod['startMinute'];
  final int endHour = timePeriod['endHour'];
  final int endMinute = timePeriod['endMinute'];
  final Map<int, String> dayMap = {
    1: '周一',
    2: '周二',
    3: '周三',
    4: '周四',
    5: '周五',
    6: '周六',
    7: '周日',
  };
  final List<int> dayArray = [
    hasMonday ? 1 : 0,
    hasTuesday ? 2 : 0,
    hasWednesday ? 3 : 0,
    hasThursday ? 4 : 0,
    hasFriday ? 5 : 0,
    hasSaturday ? 6 : 0,
    hasSunday ? 7 : 0,
  ];
  final String dayDesc = dayArray
      .join('')
      .split('0')
      .map((chunk) {
        switch (chunk.length) {
          case 0:
            return '';
          case 1:
            return dayMap[int.parse(chunk[0])];
          case 2:
            return '${dayMap[int.parse(chunk[0])]}、${dayMap[int.parse(chunk[1])]}';
          case 7:
            return '每天';
          default:
            return '${dayMap[int.parse(chunk[0])]} ~ ${dayMap[int.parse(chunk[chunk.length - 1])]}}';
        }
      })
      .where((str) => str?.isNotEmpty == true)
      .join('、');
  final String timeDesc =
      '$startHour:$startMinute ~ ${endHour == 23 && endMinute == 59 ? '24:00' : '$endHour:$endMinute'}';
  return '$dayDesc，$timeDesc，${hasLegalHolidays ? '' : '除'}法定节假日可用';
}

GPT3.5

/// Composes a time period description based on the provided [timePeriod] data.
///
/// The [timePeriod] should be a map with the following keys:
///   - 'hasMonday': bool, indicating if Monday is included in the time period.
///   - 'hasTuesday': bool, indicating if Tuesday is included in the time period.
///   - 'hasWednesday': bool, indicating if Wednesday is included in the time period.
///   - 'hasThursday': bool, indicating if Thursday is included in the time period.
///   - 'hasFriday': bool, indicating if Friday is included in the time period.
///   - 'hasSaturday': bool, indicating if Saturday is included in the time period.
///   - 'hasSunday': bool, indicating if Sunday is included in the time period.
///   - 'hasLegalHolidays': bool, indicating if legal holidays are included in the time period.
///   - 'startHour': int, the starting hour of the time period.
///   - 'startMinute': int, the starting minute of the time period.
///   - 'endHour': int, the ending hour of the time period.
///   - 'endMinute': int, the ending minute of the time period.
///
/// Returns a composed time period description string.
String timePeriodCompositor(Map<String, dynamic> timePeriod) {
  final bool hasMonday = timePeriod['hasMonday'];
  final bool hasTuesday = timePeriod['hasTuesday'];
  final bool hasWednesday = timePeriod['hasWednesday'];
  final bool hasThursday = timePeriod['hasThursday'];
  final bool hasFriday = timePeriod['hasFriday'];
  final bool hasSaturday = timePeriod['hasSaturday'];
  final bool hasSunday = timePeriod['hasSunday'];
  final bool hasLegalHolidays = timePeriod['hasLegalHolidays'];
  final int startHour = timePeriod['startHour'];
  final int startMinute = timePeriod['startMinute'];
  final int endHour = timePeriod['endHour'];
  final int endMinute = timePeriod['endMinute'];
  final Map<int, String> dayMap = {
    1: '周一',
    2: '周二',
    3: '周三',
    4: '周四',
    5: '周五',
    6: '周六',
    7: '周日',
  };
  final List<int> dayArray = [
    hasMonday ? 1 : 0,
    hasTuesday ? 2 : 0,
    hasWednesday ? 3 : 0,
    hasThursday ? 4 : 0,
    hasFriday ? 5 : 0,
    hasSaturday ? 6 : 0,
    hasSunday ? 7 : 0,
  ];
  final String dayDesc = dayArray
      .join('')
      .split('0')
      .map((chunk) {
        switch (chunk.length) {
          case 0:
            return '';
          case 1:
            return dayMap[int.parse(chunk[0])];
          case 2:
            return '${dayMap[int.parse(chunk[0])]}、${dayMap[int.parse(chunk[1])]}';
          case 7:
            return '每天';
          default:
            return '${dayMap[int.parse(chunk[0])]} ~ ${dayMap[int.parse(chunk[chunk.length - 1])]}}';
        }
      })
      .where((str) => str?.isNotEmpty == true)
      .join('、');
  final String timeDesc =
      '$startHour:$startMinute ~ ${endHour == 23 && endMinute == 59 ? '24:00' : '$endHour:$endMinute'}';
  return '$dayDesc，$timeDesc，${hasLegalHolidays ? '' : '除'}法定节假日可用';
}

Bard

// Add comments to the following dart functions
/// This function composes a string that represents the time period.
///
/// The time period is represented by a map with the following keys:
///
/// * `hasMonday`: Whether Monday is included in the time period.
/// * `hasTuesday`: Whether Tuesday is included in the time period.
/// * `hasWednesday`: Whether Wednesday is included in the time period.
/// * `hasThursday`: Whether Thursday is included in the time period.
/// * `hasFriday`: Whether Friday is included in the time period.
/// * `hasSaturday`: Whether Saturday is included in the time period.
/// * `hasSunday`: Whether Sunday is included in the time period.
/// * `hasLegalHolidays`: Whether the time period includes legal holidays.
/// * `startHour`: The start hour of the time period.
/// * `startMinute`: The start minute of the time period.
/// * `endHour`: The end hour of the time period.
/// * `endMinute`: The end minute of the time period.
///
/// The function returns a string that has the following format:
///
/// `周一、周二 ~ 周五，10:00 ~ 12:00，法定节假日可用`
///
/// The string represents the time period as a list of days, start and end time, and whether legal holidays are included.
///
/// For example, the string `周一、周二 ~ 周五，10:00 ~ 12:00，法定节假日可用` represents a time period that includes Monday, Tuesday, Wednesday, Thursday, from 10:00 to 12:00, and is also available on legal holidays.
String timePeriodCompositor(Map<String, dynamic> timePeriod) {
  final bool hasMonday = timePeriod['hasMonday'];
  final bool hasTuesday = timePeriod['hasTuesday'];
  final bool hasWednesday = timePeriod['hasWednesday'];
  final bool hasThursday = timePeriod['hasThursday'];
  final bool hasFriday = timePeriod['hasFriday'];
  final bool hasSaturday = timePeriod['hasSaturday'];
  final bool hasSunday = timePeriod['hasSunday'];
  final bool hasLegalHolidays = timePeriod['hasLegalHolidays'];
  final int startHour = timePeriod['startHour'];
  final int startMinute = timePeriod['startMinute'];
  final int endHour = timePeriod['endHour'];
  final int endMinute = timePeriod['endMinute'];
  final Map<int, String> dayMap = {
    1: '周一',
    2: '周二',
    3: '周三',
    4: '周四',
    5: '周五',
    6: '周六',
    7: '周日',
  };
  final List<int> dayArray = [
    hasMonday ? 1 : 0,
    hasTuesday ? 2 : 0,
    hasWednesday ? 3 : 0,
    hasThursday ? 4 : 0,
    hasFriday ? 5 : 0,
    hasSaturday ? 6 : 0,
    hasSunday ? 7 : 0,
  ];
  final String dayDesc = dayArray
      .join('')
      .split('0')
      .map((chunk) {
        switch (chunk.length) {
          case 0:
            return '';
          case 1:
            return dayMap[int.parse(chunk[0])];
          case 2:
            return '${dayMap[int.parse(chunk[0])]}、${dayMap[int.parse(chunk[1])]}';
          case 7:
            return '每天';
          default:
            return '${dayMap[int.parse(chunk[0])]} ~ ${dayMap[int.parse(chunk[chunk.length - 1])]}}';
        }
      })
      .where((str) => str?.isNotEmpty == true)
      .join('、');
  final String timeDesc =
      '$startHour:$startMinute ~ ${endHour == 23 && endMinute == 59 ? '24:00' : '$endHour:$endMinute'}';
  return '$dayDesc，$timeDesc，${hasLegalHolidays ? '' : '除'}法定节假日可用';
}

Bing

/// 组合时刻段描绘
///
/// [timePeriod] 是一个包含时刻段信息的Map，它应该包含以下键值对：
/// - 'hasMonday'：bool类型，表明是否包含周一
/// - 'hasTuesday'：bool类型，表明是否包含周二
/// - 'hasWednesday'：bool类型，表明是否包含周三
/// - 'hasThursday'：bool类型，表明是否包含周四
/// - 'hasFriday'：bool类型，表明是否包含周五
/// - 'hasSaturday'：bool类型，表明是否包含周六
/// - 'hasSunday'：bool类型，表明是否包含周日
/// - 'hasLegalHolidays'：bool类型，表明是否包含法定节假日
/// - 'startHour'：int类型，表明开端时刻的小时数
/// - 'startMinute'：int类型，表明开端时刻的分钟数
/// - 'endHour'：int类型，表明完毕时刻的小时数
/// - 'endMinute'：int类型，表明完毕时刻的分钟数
///
/// 回来一个字符串，描绘给定的时刻段。
String timePeriodCompositor(Map<String, dynamic> timePeriod) {
  // 从timePeriod中提取各个值
  final bool hasMonday = timePeriod['hasMonday'];
  final bool hasTuesday = timePeriod['hasTuesday'];
  final bool hasWednesday = timePeriod['hasWednesday'];
  final bool hasThursday = timePeriod['hasThursday'];
  final bool hasFriday = timePeriod['hasFriday'];
  final bool hasSaturday = timePeriod['hasSaturday'];
  final bool hasSunday = timePeriod['hasSunday'];
  final bool hasLegalHolidays = timePeriod['hasLegalHolidays'];
  final int startHour = timePeriod['startHour'];
  final int startMinute = timePeriod['startMinute'];
  final int endHour = timePeriod['endHour'];
  final int endMinute = timePeriod['endMinute'];
  // 界说一个星期几的映射表
  final Map<int, String> dayMap = {
    1: '周一',
    2: '周二',
    3: '周三',
    4: '周四',
    5: '周五',
    6: '周六',
    7: '周日',
  };
  // 依据timePeriod中的值创立一个星期几的数组
  final List<int> dayArray = [
    hasMonday ? 1 : 0,
    hasTuesday ? 2 : 0,
    hasWednesday ? 3 : 0,
    hasThursday ? 4 : 0,
    hasFriday ? 5 : 0,
    hasSaturday ? 6 : 0,
    hasSunday ? 7 : 0,
  ];
  // 将dayArray转化为一个字符串，然后依据0来切割它
  // 关于每个切割后的字符串，依据它的长度来生成描绘
  final String dayDesc = dayArray
      .join('')
      .split('0')
      .map((chunk) {
        switch (chunk.length) {
          case 0:
            return '';
          case 1:
            return dayMap[int.parse(chunk[0])];
          case 2:
            return '${dayMap[int.parse(chunk[0])]}、${dayMap[int.parse(chunk[1])]}';
          case 7:
            return '每天';
          default:
            return '${dayMap[int.parse(chunk[0])]} ~ ${dayMap[int.parse(chunk[chunk.length - 1])]}}';
        }
      })
      .where((str) => str?.isNotEmpty == true)
      .join('、');
  // 组合开端和完毕时刻的描绘
  final String timeDesc =
      '$startHour:$startMinute ~ ${endHour == 23 && endMinute == 59 ? '24:00' : '$endHour:$endMinute'}';
  // 回来终究的描绘
  return '$dayDesc，$timeDesc，${hasLegalHolidays ? '' : '除'}法定节假日可用';
}

UI组件

GitHub Copilot

/// 用dart完结一个登录界面，有两种形式，验证码登录和暗码登录 验证码登录时有两个输入项，手机号和验证码，输入的手机号合法后才可发送验证码，60秒内只能够发送一次验证码
import 'dart:async';
import 'package:flutter/material.dart';
class LoginScreen extends StatefulWidget {
  @override
  _LoginScreenState createState() => _LoginScreenState();
}
class _LoginScreenState extends State<LoginScreen> {
  final _formKey = GlobalKey<FormState>();
  final _phoneController = TextEditingController();
  final _codeController = TextEditingController();
  bool _isPasswordLogin = true;
  bool _isSendingCode = false;
  bool _canSendCode = true;
  Timer? _timer;
  int _countdown = 60;
  @override
  void dispose() {
    _timer?.cancel();
    _phoneController.dispose();
    _codeController.dispose();
    super.dispose();
  }
  void _startTimer() {
    _timer = Timer.periodic(Duration(seconds: 1), (timer) {
      setState(() {
        _countdown--;
      });
      if (_countdown == 0) {
        _timer?.cancel();
        setState(() {
          _canSendCode = true;
        });
      }
    });
  }
  void _sendCode() {
    setState(() {
      _isSendingCode = true;
      _canSendCode = false;
      _countdown = 60;
    });
    _startTimer();
  }
  void _submit() {
    if (_formKey.currentState!.validate()) {
      // TODO: Perform login
    }
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Login'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Form(
          key: _formKey,
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              SizedBox(height: 16.0),
              Row(
                children: [
                  Expanded(
                    child: ElevatedButton(
                      onPressed: () {
                        setState(() {
                          _isPasswordLogin = true;
                        });
                      },
                      child: Text('Password Login'),
                      style: ElevatedButton.styleFrom(
                        primary: _isPasswordLogin ? Colors.blue : null,
                      ),
                    ),
                  ),
                  SizedBox(width: 16.0),
                  Expanded(
                    child: ElevatedButton(
                      onPressed: () {
                        setState(() {
                          _isPasswordLogin = false;
                        });
                      },
                      child: Text('Verification Code Login'),
                      style: ElevatedButton.styleFrom(
                        primary: !_isPasswordLogin ? Colors.blue : null,
                      ),
                    ),
                  ),
                ],
              ),
              SizedBox(height: 16.0),
              TextFormField(
                controller: _phoneController,
                keyboardType: TextInputType.phone,
                decoration: InputDecoration(
                  labelText: 'Phone Number',
                ),
                validator: (value) {
                  if (value == null || value.isEmpty) {
                    return 'Please enter your phone number';
                  }
                  // TODO: Add phone number validation
                  return null;
                },
              ),
              SizedBox(height: 16.0),
              if (_isPasswordLogin)
                TextFormField(
                  obscureText: true,
                  decoration: InputDecoration(
                    labelText: 'Password',
                  ),
                  validator: (value) {
                    if (value == null || value.isEmpty) {
                      return 'Please enter your password';
                    }
                    // TODO: Add password validation
                    return null;
                  },
                ),
              if (!_isPasswordLogin)
                Row(
                  children: [
                    Expanded(
                      child: TextFormField(
                        controller: _codeController,
                        keyboardType: TextInputType.number,
                        decoration: InputDecoration(
                          labelText: 'Verification Code',
                        ),
                        validator: (value) {
                          if (value == null || value.isEmpty) {
                            return 'Please enter the verification code';
                          }
                          // TODO: Add verification code validation
                          return null;
                        },
                      ),
                    ),
                    SizedBox(width: 16.0),
                    ElevatedButton(
                      onPressed: _canSendCode ? _sendCode : null,
                      child: Text(_canSendCode ? 'Send Code' : '$_countdown s'),
                    ),
                  ],
                ),
              SizedBox(height: 16.0),
              ElevatedButton(
                onPressed: _submit,
                child: Text('Login'),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

GPT3.5

/// 用dart完结一个登录界面，有两种形式，验证码登录和暗码登录 验证码登录时有两个输入项，手机号和验证码，输入的手机号合法后才可发送验证码，60秒内只能够发送一次验证码
import 'dart:async';
import 'package:flutter/material.dart';
class LoginPage extends StatefulWidget {
  @override
  _LoginPageState createState() => _LoginPageState();
}
class _LoginPageState extends State<LoginPage> {
  bool _isCodeLogin = true;
  bool _isSendingCode = false;
  bool _isCodeSent = false;
  Timer? _codeTimer;
  int _remainingSeconds = 0;
  final TextEditingController _phoneController = TextEditingController();
  final TextEditingController _codeController = TextEditingController();
  @override
  void dispose() {
    _codeTimer?.cancel();
    super.dispose();
  }
  void _startCodeTimer() {
    _codeTimer?.cancel();
    _remainingSeconds = 60;
    _codeTimer = Timer.periodic(Duration(seconds: 1), (Timer timer) {
      setState(() {
        if (_remainingSeconds > 0) {
          _remainingSeconds--;
        } else {
          timer.cancel();
        }
      });
    });
  }
  void _sendCode() {
    // Simulate sending code
    setState(() {
      _isSendingCode = true;
    });
    // Simulate API request delay
    Future.delayed(Duration(seconds: 2), () {
      setState(() {
        _isSendingCode = false;
        _isCodeSent = true;
      });
      _startCodeTimer();
    });
  }
  void _login() {
    // Perform login logic here
    String phoneNumber = _phoneController.text;
    String code = _codeController.text;
    // Print the login information
    print('Phone Number: $phoneNumber');
    print('Code: $code');
    // Reset the input fields
    _phoneController.clear();
    _codeController.clear();
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Login'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            SizedBox(height: 20),
            ToggleButtons(
              isSelected: [_isCodeLogin, !_isCodeLogin],
              onPressed: (index) {
                setState(() {
                  _isCodeLogin = index == 0;
                });
              },
              children: [
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Text('验证码登录'),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Text('暗码登录'),
                ),
              ],
            ),
            SizedBox(height: 20),
            TextField(
              controller: _phoneController,
              decoration: InputDecoration(
                labelText: '手机号',
              ),
            ),
            SizedBox(height: 10),
            if (_isCodeLogin) ...[
              TextField(
                controller: _codeController,
                decoration: InputDecoration(
                  labelText: '验证码',
                ),
              ),
              SizedBox(height: 10),
              Row(
                children: [
                  Expanded(
                    child: ElevatedButton(
                      onPressed: _isSendingCode || _remainingSeconds > 0
                          ? null
                          : () {
                              _sendCode();
                            },
                      child: _isSendingCode
                          ? CircularProgressIndicator(
                              valueColor:
                                  AlwaysStoppedAnimation<Color>(Colors.white),
                            )
                          : Text('发送验证码'),
                    ),
                  ),
                  SizedBox(width: 10),
                  Text(
                    _remainingSeconds > 0
                        ? '$_remainingSeconds秒后从头发送'
                        : '',
                    style: TextStyle(color: Colors.grey),
                  ),
                ],
              ),
            ] else ...[
              TextField(
                decoration: InputDecoration(
                  labelText: '暗码',
                ),
                obscureText: true,
              ),
            ],
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: _isCodeLogin && !_isCodeSent
                  ? null
                  : () {
                      _login();
                    },
              child: Text('登录'),
            ),
          ],
        ),
      ),
    );
  }
}
void main() {
  runApp(MaterialApp(
    title: 'Login Demo',
    theme: ThemeData(primarySwatch: Colors.blue),
    home: LoginPage(),
  ));
}

Bard

/// Implement a login interface with dart, there are two modes, verification code login and password login verification code login, there are two input items, mobile phone number and verification code, the verification code can only be sent after the entered mobile phone number is legal, 60 seconds The verification code can only be sent once within
import 'dart:async';
import 'package:flutter/material.dart';
void main() {
  runApp(MyApp());
}
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Login',
      home: LoginPage(),
    );
  }
}
class LoginPage extends StatefulWidget {
  @override
  State<LoginPage> createState() => _LoginPageState();
}
class _LoginPageState extends State<LoginPage> {
  final TextEditingController _mobileController = TextEditingController();
  final TextEditingController _verificationCodeController =
      TextEditingController();
  bool _isVerificationCodeSent = false;
  Timer _timer;
  @override
  void initState() {
    super.initState();
    _timer = Timer(Duration(seconds: 60), () {
      setState(() {
        _isVerificationCodeSent = false;
      });
    });
  }
  @override
  void dispose() {
    _timer.cancel();
    super.dispose();
  }
  void _sendVerificationCode() async {
    if (_mobileController.text.isEmpty) {
      return;
    }
    setState(() {
      _isVerificationCodeSent = true;
    });
    // TODO: Send verification code to the mobile phone number.
  }
  void _login() async {
    if (_mobileController.text.isEmpty ||
        _verificationCodeController.text.isEmpty) {
      return;
    }
    // TODO: Login with the mobile phone number and verification code.
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Login')),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          children: [
            TextField(
              controller: _mobileController,
              decoration: InputDecoration(labelText: 'Mobile Phone Number'),
            ),
            SizedBox(height: 16.0),
            _isVerificationCodeSent
                ? RaisedButton(
                    child: Text('Resend Verification Code'),
                    onPressed: _sendVerificationCode,
                  )
                : RaisedButton(
                    child: Text('Send Verification Code'),
                    onPressed: _sendVerificationCode,
                  ),
            SizedBox(height: 16.0),
            TextField(
              controller: _verificationCodeController,
              decoration: InputDecoration(labelText: 'Verification Code'),
            ),
            SizedBox(height: 16.0),
            RaisedButton(
              child: Text('Login'),
              onPressed: _login,
            ),
          ],
        ),
      ),
    );
  }
}

Bing

/// 用dart完结一个登录界面，有两种形式，验证码登录和暗码登录 验证码登录时有两个输入项，手机号和验证码，输入的手机号合法后才可发送验证码，60秒内只能够发送一次验证码
import 'package:flutter/material.dart';
class LoginPage extends StatefulWidget {
  @override
  _LoginPageState createState() => _LoginPageState();
}
class _LoginPageState extends State<LoginPage> {
  final _phoneController = TextEditingController();
  final _codeController = TextEditingController();
  bool _canSendCode = true;
  String _sendCodeButtonText = '发送验证码';
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('登录'),
      ),
      body: Column(
        children: [
          TextField(
            controller: _phoneController,
            decoration: InputDecoration(
              labelText: '手机号',
            ),
            keyboardType: TextInputType.phone,
          ),
          TextField(
            controller: _codeController,
            decoration: InputDecoration(
              labelText: '验证码',
            ),
            keyboardType: TextInputType.number,
          ),
          RaisedButton(
            onPressed: _canSendCode ? _sendCode : null,
            child: Text(_sendCodeButtonText),
          ),
        ],
      ),
    );
  }
  void _sendCode() {
    if (_isPhoneValid(_phoneController.text)) {
      setState(() {
        _canSendCode = false;
        _sendCodeButtonText = '60秒后从头发送';
      });
      // 发送验证码
      // ...
      Future.delayed(Duration(seconds: 60), () {
        setState(() {
          _canSendCode = true;
          _sendCodeButtonText = '发送验证码';
        });
      });
    } else {
      // 手机号不合法
      // ...
    }
  }
  bool _isPhoneValid(String phone) {
    // 运用正则表达式验证手机号的合法性
    // ...
    return true;
  }
}

套路代码

GitHub Copilot

/// 用dart 写一个model类 包含 name age city 可序列化和反序列化成json
import 'dart:convert';
class Person {
  String name;
  int age;
  String city;
  Person({required this.name, required this.age, required this.city});
  factory Person.fromJson(Map<String, dynamic> json) {
    return Person(
      name: json['name'],
      age: json['age'],
      city: json['city'],
    );
  }
  Map<String, dynamic> toJson() {
    return {
      'name': name,
      'age': age,
      'city': city,
    };
  }
  String toString() {
    return jsonEncode(toJson());
  }
}

GPT3.5

/// 用dart 写一个model类 包含 name age city 可序列化和反序列化成json
import 'dart:convert';
class Person {
  String name;
  int age;
  String city;
  Person({required this.name, required this.age, required this.city});
  factory Person.fromJson(String jsonString) {
    Map<String, dynamic> jsonMap = json.decode(jsonString);
    return Person(
      name: jsonMap['name'],
      age: jsonMap['age'],
      city: jsonMap['city'],
    );
  }
  String toJson() {
    Map<String, dynamic> jsonMap = {
      'name': name,
      'age': age,
      'city': city,
    };
    return json.encode(jsonMap);
  }
}
void main() {
  // 创立一个 Person 方针
  Person person = Person(name: 'John Doe', age: 30, city: 'New York');
  // 将 Person 方针序列化为 JSON 字符串
  String jsonString = person.toJson();
  print('Serialized JSON: $jsonString');
  // 将 JSON 字符串反序列化为 Person 方针
  Person decodedPerson = Person.fromJson(jsonString);
  print('Deserialized Person:');
  print('Name: ${decodedPerson.name}');
  print('Age: ${decodedPerson.age}');
  print('City: ${decodedPerson.city}');
}

Bard

/// Write a model class with dart, including name age city, which can be serialized and deserialized into json
import 'dart:convert';
class Person {
  String name;
  int age;
  String city;
  Person({this.name, this.age, this.city});
  factory Person.fromJson(Map<String, dynamic> json) {
    return Person(
      name: json['name'],
      age: json['age'],
      city: json['city'],
    );
  }
  Map<String, dynamic> toJson() {
    return {
      'name': name,
      'age': age,
      'city': city,
    };
  }
}

Bing

/// 用dart 写一个model类 包含 name age city 可序列化和反序列化成json
class UserModel {
  String name;
  int age;
  String city;
  UserModel({this.name, this.age, this.city});
  // 将model方针序列化成JSON字符串
  String toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['name'] = this.name;
    data['age'] = this.age;
    data['city'] = this.city;
    return json.encode(data);
  }
  // 将JSON字符串反序列化成model方针
  factory UserModel.fromJson(String jsonString) {
    final jsonMap = json.decode(jsonString);
    return UserModel(
      name: jsonMap['name'],
      age: jsonMap['age'],
      city: jsonMap['city'],
    );
  }
}

• 问题修正
  • 类型过错
  • 未界说的变量
  • 未捕捉的反常
  • 未完结的接口办法
• 代码重构
  • 合理的变量和函数命名
  • 消除重复代码
  • 简化条件句子
  • 运用现代言语特性
  • 改善过错处理
• 代码审查
  • 或许导致运转时过错的代码
  • 低质量代码
  • 风格问题
  • 未遵循最佳实践
  • 潜在的功用问题
• UT生成
  • 纯函数
  • 包含UI操作
  • 依靠全局变量
  • 包含异步操作
• 文档编写
  • 纯函数
  • UI组件

问题修正

类型过错

void greet(String name) {
  print('Hello, $name!');
}
void main() {
  greet(123);
}

GitHub Copilot

void greet(String name) {
  print('Hello, $name!');
}
void main() {
  greet('123');
}

GPT3.5

void greet(String name) {
  print('Hello, $name!');
}
void main() {
  greet('123');
}

Bard

void greet(String name) {
  print('Hello, $name!');
}
void main() {
  greet(123.toString());
}

Bing

void greet(String name) {
  print('Hello, $name!');
}
void main() {
  greet('123');
}

未界说的变量

int calculateArea(int radius) {
	return pi * radius * radius; 
}

GitHub Copilot

import 'dart:math';
double calculateArea(int radius) {
	return pi * radius * radius;
}

GPT3.5

import 'dart:math';
double calculateArea(int radius) {
  return pi * radius * radius;
}
void main() {
  int radius = 5;
  double area = calculateArea(radius);
  print('The area is: $area');
}

Bard

import 'dart:math';
int calculateArea(int radius) {
  return pi * radius * radius;
}

Bing

import 'dart:math';
double calculateArea(int radius) {
  return pi * radius * radius;
}

未捕捉的反常

void fetchData() {
	final dio = Dio();
	final response = await dio.get('https://api.example.com/data'); 
	final data = response.data;
	print('$data');
}

GitHub Copilot

import 'package:dio/dio.dart';
Future<void> fetchData() async {
	final dio = Dio();
	final response = await dio.get('https://api.example.com/data');
	final data = response.data;
	print('$data');
}

GPT3.5

import 'package:dio/dio.dart';
Future<void> fetchData() async {
  try {
    final dio = Dio();
    final response = await dio.get('https://api.example.com/data');
    final data = response.data;
    print(data);
  } catch (e) {
    print('Error: $e');
  }
}
void main() {
  fetchData();
}

Bard

import 'package:dio/dio.dart';
Future<Map<String, dynamic>> fetchData() async {
  final dio = Dio();
  final response = await dio.get('https://api.example.com/data');
  return response.data;
}
void main() {
  Map<String, dynamic> data = await fetchData();
  print(data);
}

Bing

import 'package:dio/dio.dart';
Future<void> fetchData() async {
  final dio = Dio();
  final response = await dio.get('https://api.example.com/data');
  final data = response.data;
  print('$data');
}

未完结的接口办法

abstract class Animal {
	void eat();
	void sleep();
}
class Dog implements Animal {
	eat() {
		print('Dog is eating...');
	}
}

GitHub Copilot

abstract class Animal {
  void eat();
  void sleep();
}
class Dog implements Animal {
  @override
  void eat() {
    print('Dog is eating...');
  }
  @override
  void sleep() {
    print('Dog is sleeping...');
  }
}

GPT3.5

abstract class Animal {
  void eat();
  void sleep();
}
class Dog implements Animal {
  @override
  void eat() {
    print('Dog is eating...');
  }
  @override
  void sleep() {
    print('Dog is sleeping...');
  }
}

Bard

abstract class Animal {
  void eat();
  void sleep();
}
class Dog extends Animal {
  @override
  void eat() {
    print('Dog is eating...');
  }
}

Bing

abstract class Animal {
  void eat();
  void sleep();
}
class Dog implements Animal {
  @override
  void eat() {
    print('Dog is eating...');
  }
  @override
  void sleep() {
    print('Dog is sleeping...');
  }
}

代码重构

合理的变量和函数命名

int fn(int a,int b){
  return a + b;
}

GitHub Copilot

int sum(int a, int b) {
	return a + b;
}

GPT3.5

int calculateSum(int a, int b) {
  return a + b;
}

Bard

int add(int a, int b) {
  return a + b;
}

Bing

int add(int a, int b) {
  return a + b;
}

消除重复代码

void printInvoice(invoice) {
  print('Invoice Number: ${invoice.number}');
  print('Invoice Date: ${invoice.date}');
  print('Invoice Amount: ${invoice.amount}');
}
void printReceipt(receipt) {
  print('Receipt Number: ${receipt.number}');
  print('Receipt Date: ${receipt.date}');
  print('Receipt Amount: ${receipt.amount}');
}

GitHub Copilot

void printInvoice(Map<String, dynamic> invoice) {
  print('Invoice Number: ${invoice['number']}');
  print('Invoice Date: ${invoice['date']}');
  print('Invoice Amount: ${invoice['amount']}');
}
void printReceipt(Map<String, dynamic> receipt) {
  print('Receipt Number: ${receipt['number']}');
  print('Receipt Date: ${receipt['date']}');
  print('Receipt Amount: ${receipt['amount']}');
}

GPT3.5

void printInvoice(dynamic invoice) {
  final number = invoice.number;
  final date = invoice.date;
  final amount = invoice.amount;
  print('Invoice Number: $number');
  print('Invoice Date: $date');
  print('Invoice Amount: $amount');
}
void printReceipt(dynamic receipt) {
  final number = receipt.number;
  final date = receipt.date;
  final amount = receipt.amount;
  print('Receipt Number: $number');
  print('Receipt Date: $date');
  print('Receipt Amount: $amount');
}

Bard

void printInvoiceOrReceipt(document) {
  print('Document Number: ${document.number}');
  print('Document Date: ${document.date}');
  print('Document Amount: ${document.amount}');
}

Bing

void printDocument(document) {
  print('Document Number: ${document.number}');
  print('Document Date: ${document.date}');
  print('Document Amount: ${document.amount}');
}

简化条件句子

void doSomething(user) {
	if ((user.isLoggedIn && user.hasPermission) || user.isAdmin || user.isOwner) {
		// do something...
	}
}

GitHub Copilot

void doSomething(User user) {
  if (user.canDoSomething()) {
    // do something...
  }
}
class User {
  bool isLoggedIn = false;
  bool hasPermission = false;
  bool isAdmin = false;
  bool isOwner = false;
  bool canDoSomething() {
    return (isLoggedIn && hasPermission) || isAdmin || isOwner;
  }
}

GPT3.5

void doSomething(User user) {
  final isLoggedIn = user.isLoggedIn;
  final hasPermission = user.hasPermission;
  final isAdmin = user.isAdmin;
  final isOwner = user.isOwner;
  if ((isLoggedIn && hasPermission) || isAdmin || isOwner) {
    // do something...
  }
}

Bard

void doSomething(User user) {
  if (user.isLoggedIn && user.hasPermission || user.isAdmin || user.isOwner) {
    // do something...
  }
}

Bing

bool canDoSomething(user) {
  return (user.isLoggedIn && user.hasPermission) || user.isAdmin || user.isOwner;
}
void doSomething(user) {
  if (canDoSomething(user)) {
    // do something...
  }
}

潜在的功用问题

for (var i = 0; i < arr.length; i++) {
  for (var j = 0; j < arr.length; j++) {
    for (var k = 0; k < arr.length; k++) {
      // do something...
    }
  }
}

GitHub Copilot

for (var i = 0; i < arr.length; i++) {
  for (var j = 0; j < arr.length; j++) {
    for (var k = j + 1; k < arr.length; k++) {
      // do something...
    }
  }
}

GPT3.5

final length = arr.length;
for (var i = 0; i < length; i++) {
  for (var j = 0; j < length; j++) {
    for (var k = 0; k < length; k++) {
      // do something...
    }
  }
}

Bard

for (var i = 0; i < arr.length; i++) {
	for (var j = i + 1; j < arr.length; j++) {
      for (var k = j + 1; k < arr.length; k++) {
        // do something...
      }
	}
}
void main() {
  List<int> arr = [1, 2, 3, 4, 5];
  doSomething(arr);
}

Bing

您好！这段代码中运用了三层嵌套的循环来遍历一个数组。这种做法的时刻复杂度为O(n^3)，其间n为数组的长度。假如数组的长度很大，这段代码的运转时刻或许会十分长。
要优化这段代码，您需求依据详细情况来确定最佳计划。假如您能够供给更多关于这段代码的布景信息和目的，我将可认为您供给更详细的建议。
例如，假如您期望在数组中查找某个特定的元素，您能够运用更高效的算法，如二分查找。假如您期望对数组进行排序，您能够运用更高效的排序算法，如快速排序或归并排序。
期望这个解释能够协助您了解怎么优化这段代码。假如您需求更多协助，欢迎持续发问。

UT生成

纯函数

import 'dart:convert';
import 'dart:typed_data';
Blob dataURItoBlob(String dataURI) {
  final byteString = utf8.decode(base64.decode(dataURI.split(',')[1]));
  final mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
  final ab = Uint8List(byteString.length).buffer;
  final ia = Uint8List.view(ab);
  for (var i = 0; i < byteString.length; i++) {
    ia[i] = byteString.codeUnitAt(i);
  }
  return Blob([ab], mimeString);
}

GitHub Copilot

import 'package:test/test.dart';
import 'package:example/test.dart';
void main() {
  group('dataURItoBlob', () {
    test('should convert a data URI to a Blob', () {
      final dataURI =
          'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA'
          'AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO'
          '9TXL0Y4OHwAAAABJRU5ErkJggg==';
      final blob = dataURItoBlob(dataURI);
      expect(blob.type, equals('image/png'));
      expect(blob.size, equals(68));
    });
  });
}

GPT3.5

import 'package:test/test.dart';
void main() {
  test('Convert Data URI to Bytes', () {
    final dataURI = 'data:image/png;base64,iVBORw0KGg...';
    final expectedBytes = [105, 86, 66, 79, 82, 119, 48, 75, 71, 103, ...]; // 以实践数据为准
    final bytes = dataURItoBytes(dataURI);
    expect(bytes, equals(expectedBytes));
  });
}

Bard

import 'dart:convert';
import 'dart:typed_data';
import 'package:test/test.dart';
void main() {
  test('dataURItoBlob', () {
    String dataURI = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FCQAAAAB';
    Blob blob = dataURItoBlob(dataURI);
    expect(blob.type, equals('image/png'));
    expect(blob.size, equals(1305));
    Uint8List bytes = blob.bytes;
    expect(bytes.length, equals(1305));
  });
}

Bing

import 'dart:convert';
import 'dart:typed_data';
import 'package:test/test.dart';
void main() {
  test('dataURItoBlob should convert data URI to Blob', () {
    final dataURI =
        'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==';
    final blob = dataURItoBlob(dataURI);
    expect(blob.type, equals('image/png'));
    expect(blob.size, equals(85));
  });
}

包含UI操作

import 'package:flutter/material.dart';
void main() => runApp(CounterApp());
class CounterApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Counter App',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: CounterScreen(),
    );
  }
}
class CounterScreen extends StatefulWidget {
  @override
  _CounterScreenState createState() => _CounterScreenState();
}
class _CounterScreenState extends State<CounterScreen> {
  int _counter = 0;
  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Counter App'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              'Counter:',
              style: TextStyle(fontSize: 24),
            ),
            Text(
              '$_counter',
              style: TextStyle(fontSize: 48, fontWeight: FontWeight.bold),
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}

GitHub Copilot

import 'package:flutter_test/flutter_test.dart'; import 'package:example/main.dart';
void main() { 
test('Counter value should increment', () {
	final counterScreen = CounterScreen();  expect(counterScreen._counter, 0); counterScreen._incrementCounter(); expect(counterScreen._counter, 1); }); 
}

GPT3.5

import 'package:flutter_test/flutter_test.dart';
import 'package:your_app_name/counter_screen.dart';
void main() {
  group('CounterScreen', () {
    testWidgets('should display initial counter value of 0', (WidgetTester tester) async {
      await tester.pumpWidget(CounterScreen());
      expect(find.text('0'), findsOneWidget);
    });
    testWidgets('should increment counter when FloatingActionButton is pressed', (WidgetTester tester) async {
      await tester.pumpWidget(CounterScreen());
      // Find FloatingActionButton
      final incrementButton = find.byType(FloatingActionButton);
      // Tap the FloatingActionButton twice
      await tester.tap(incrementButton);
      await tester.tap(incrementButton);
      await tester.pump();
      // Verify that the counter value has increased to 2
      expect(find.text('2'), findsOneWidget);
    });
  });
}

Bard

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
  testWidgets('CounterApp increments the counter', (WidgetTester tester) async {
    // Build the app
    await tester.pumpWidget(CounterApp());
    // Check that the counter starts at 0
    expect(find.text('Counter:'), findsOneWidget);
    expect(find.text('0'), findsOneWidget);
    // Tap the button to increment the counter
    await tester.tap(find.widgetWithIcon(Icons.add));
    await tester.pump();
    // Check that the counter has incremented
    expect(find.text('Counter:'), findsOneWidget);
    expect(find.text('1'), findsOneWidget);
  });
}

Bing

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
  testWidgets('CounterApp increments the counter', (WidgetTester tester) async {
    // Build the app
    await tester.pumpWidget(CounterApp());
    // Check that the counter starts at 0
    expect(find.text('Counter:'), findsOneWidget);
    expect(find.text('0'), findsOneWidget);
    // Tap the button to increment the counter
    await tester.tap(find.byIcon(Icons.add));
    await tester.pump();
    // Check that the counter has incremented
    expect(find.text('Counter:'), findsOneWidget);
    expect(find.text('1'), findsOneWidget);
  });
}

依靠全局变量

class GlobalData {
  static GlobalData? _instance;
  String? globalVariable;
  GlobalData._internal();
  factory GlobalData() {
    if (_instance == null) {
      _instance = GlobalData._internal();
    }
    return _instance!;
  }
}
void dependentFunction() {
  final globalData = GlobalData();
  if (globalData.globalVariable != null) {
    // 在这里运用全局变量进行操作
    print(globalData.globalVariable);
  } else {
    print('全局变量未设置');
  }
}

GitHub Copilot

import 'package:test/test.dart';
import '../lib/test.dart';
void main() {
  group('GlobalData', () {
    test('should create only one instance', () {
      final instance1 = GlobalData();
      final instance2 = GlobalData();
      expect(instance1, equals(instance2));
    });
    test('should set and get globalVariable', () {
      final globalData = GlobalData();
      globalData.globalVariable = 'test';
      expect(globalData.globalVariable, equals('test'));
    });
  });
  group('dependentFunction', () {
    test('should print globalVariable if set', () {
      final globalData = GlobalData();
      globalData.globalVariable = 'test';
      expect(dependentFunction(), equals('test'));
    });
    test('should print "全局变量未设置" if globalVariable is null', () {
      final globalData = GlobalData();
      expect(dependentFunction(), equals('全局变量未设置'));
    });
  });
}

GPT3.5

import 'package:test/test.dart';
import 'package:example/main.dart';
void main() {
  test('Dependent function should handle global variable', () {
    final globalData = GlobalData();
    final dependent = DependentFunction();
    expect(globalData.globalVariable, isNull);
    expect(dependent.process(), equals('Global variable not set'));
    globalData.globalVariable = 'Hello World';
    expect(globalData.globalVariable, equals('Hello World'));
    expect(dependent.process(), equals('Processing: Hello World'));
  });
}

Bard

import 'package:flutter_test/flutter_test.dart';
void main() {
  test('GlobalData initializes the global variable', () {
    // Create a new instance of GlobalData
    final globalData = GlobalData();
    // Check that the global variable is not null
    expect(globalData.globalVariable, isNull);
    // Set the global variable
    globalData.globalVariable = 'Hello, world!';
    // Check that the global variable is not null
    expect(globalData.globalVariable, isNotNull);
    expect(globalData.globalVariable, equals('Hello, world!'));
  });
}

Bing

import 'package:test/test.dart';
void main() {
  test('dependentFunction should print the value of globalVariable', () {
    final globalData = GlobalData();
    globalData.globalVariable = 'test';
    expect(() => dependentFunction(), prints('test\n'));
  });
  test('dependentFunction should print "not settings" if globalVariable is null', () {
    final globalData = GlobalData();
    globalData.globalVariable = null;
    expect(() => dependentFunction(), prints('not settings\n'));
  });
}
class GlobalData {
  static GlobalData? _instance;
  String? globalVariable;
  GlobalData._internal();
  factory GlobalData() {
    if (_instance == null) {
      _instance = GlobalData._internal();
    }
    return _instance!;
  }
}
void dependentFunction() {
  final globalData = GlobalData();
  if (globalData.globalVariable != null) {
    print(globalData.globalVariable);
  } else {
    print('not settings');
  }
}

包含异步操作

Future<void> fetchData() async {
  try {
    // 模拟异步获取数据的操作
    await Future.delayed(Duration(seconds: 2));
    // 异步操作完结后的逻辑
    print('Data fetched successfully!');
  } catch (error) {
    // 反常处理逻辑
    print('Error occurred while fetching data: $error');
  }
}

GitHub Copilot

import 'package:test/test.dart';
import 'package:example/test.dart';
void main() {
  group('fetchData', () {
    test('should fetch data successfully', () async {
      await expectLater(fetchData(), completes);
    });
    test('should throw an error if fetching data fails', () async {
      final errorMessage = 'Failed to fetch data';
      expect(() => fetchData(errorMessage), throwsA(errorMessage));
    });
  });
}

GPT3.5

import 'package:test/test.dart';
Future<void> main() async {
  group('fetchData', () {
    test('should fetch data successfully', () async {
      // Arrange
      final expectedMessage = 'Data fetched successfully!';
      // Act
      await fetchData();
      // Assert
      expect(
        testOutputs.last,
        equals(expectedMessage),
        reason: 'Expected message: $expectedMessage',
      );
    });
    test('should handle error while fetching data', () async {
      // Arrange
      final expectedErrorMessage = 'Error occurred while fetching data: Test error';
      // Act
      await fetchDataWithError();
      // Assert
      expect(
        testOutputs.last,
        equals(expectedErrorMessage),
        reason: 'Expected error message: $expectedErrorMessage',
      );
    });
  });
}
final testOutputs = <String>[];
Future<void> fetchData() async {
  try {
    // 模拟异步获取数据的操作
    await Future.delayed(Duration(seconds: 2));
    // 异步操作完结后的逻辑
    testOutputs.add('Data fetched successfully!');
  } catch (error) {
    // 反常处理逻辑
    testOutputs.add('Error occurred while fetching data: $error');
  }
}
Future<void> fetchDataWithError() async {
  throw 'Test error';
}

Bard

import 'package:flutter_test/flutter_test.dart';
void main() {
  test('fetchData fetches data successfully', () async {
    // Create a mock of the Future class
    final mockFuture = MockFuture<void>();
    // Stub the mockFuture to return a value after 2 seconds
    when(mockFuture.then()).thenAnswer((_) async => {});
    // Call the fetchData() function
    await fetchData(mockFuture);
    // Verify that the mockFuture was called
    verify(mockFuture.then());
    // Verify that the print statement was called
    verify(print('Data fetched successfully!'));
  });
  test('fetchData throws an error', () async {
    // Create a mock of the Future class
    final mockFuture = MockFuture<void>();
    // Stub the mockFuture to throw an error
    when(mockFuture.then()).thenThrow(Exception('Error'));
    // Call the fetchData() function
    try {
      await fetchData(mockFuture);
    } catch (error) {
      // Verify that the error is correct
      expect(error, isA<Exception>());
      expect(error.message, equals('Error'));
    }
    // Verify that the print statement was not called
    verifyNever(print('Data fetched successfully!'));
  });
}

Bing

import 'dart:async';
import 'package:test/test.dart';
void main() {
  test('fetchData should print "Data fetched successfully!"', () async {
    expect(() async => await fetchData(), prints('Data fetched successfully!\n'));
  });
}
Future<void> fetchData() async {
  try {
    // 模拟异步获取数据的操作
    await Future.delayed(Duration(seconds: 2));
    // 异步操作完结后的逻辑
    print('Data fetched successfully!');
  } catch (error) {
    // 反常处理逻辑
    print('Error occurred while fetching data: $error');
  }
}

文档编写

纯函数

import 'dart:convert';
import 'dart:typed_data';
Blob dataURItoBlob(String dataURI) {
  final byteString = utf8.decode(base64.decode(dataURI.split(',')[1]));
  final mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
  final ab = Uint8List(byteString.length).buffer;
  final ia = Uint8List.view(ab);
  for (var i = 0; i < byteString.length; i++) {
    ia[i] = byteString.codeUnitAt(i);
  }
  return Blob([ab], mimeString);
}

GitHub Copilot

这是一个将数据URI转化为Blob方针的函数。它接受一个数据URI作为参数，并回来一个Blob方针。在函数内部，它首要将数据URI分解为字节字符串和mime字符串。然后，它将字节字符串解码为Uint8List，并将其存储在ArrayBuffer中。最终，它将ArrayBuffer转化为Blob方针，并将mime字符串作为参数传递给Blob结构函数。

GPT3.5

dataURItoBlob 函数用于将 Data URI 转化为 Blob 方针。以下是对该函数的翻译文档：

• 函数说明
  将 Data URI 转化为 Blob 方针。

Blob dataURItoBlob(String dataURI)

• dataURI: 要转化的 Data URI 字符串。

• 回来值
  回来转化后的 Blob 方针。

• 参数

• dataURI: Data URI 字符串，包含数据的编码信息和 MIME 类型。

• 示例

final dataURI = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA'
    'AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO'
    '9TXL0Y4OHwAAAABJRU5ErkJggg==';
final blob = dataURItoBlob(dataURI);
print(blob.type);  // 输出：image/png
print(blob.size);  // 输出：68

注意：需求在运用之前导入 dart:convert 和 dart:typed_data 包。

期望这个文档对你有协助！

Bard

The dataURItoBlob() function converts a data URI string to a Blob object. A data URI string is a string that represents a piece of binary data in a URL-safe format. The dataURItoBlob() function takes a data URI string as input and returns a Blob object. The Blob object can then be used to store the data or to display it in an image.

The dataURItoBlob() function works by first decoding the base64-encoded data in the data URI string. The decoded data is then converted to a Uint8List. The Uint8List is then wrapped in a Blob object and returned.

The following code shows how to use the dataURItoBlob() function:

import ‘dart:convert’; import ‘dart:typed_data’;

void main() { String dataURI = ‘data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FCQAAAAB’;

Blob blob = dataURItoBlob(dataURI); }

This code will create a Blob object from the data in the dataURI string. The Blob object can then be used to store the data or to display it in an image.

The dataURItoBlob() function is a useful function for converting data URI strings to Blob objects. This can be useful for storing data in a URL-safe format or for displaying data in an image.

Bing

dataURItoBlob函数用于将数据URI转化为Blob方针。它接受一个字符串类型的参数dataURI，该参数表明要转化的数据URI。

函数首要运用split办法将数据URI切割为两部分：MIME类型和Base64编码的数据。然后，运用base64.decode办法将Base64编码的数据解码为字节数组，再运用utf8.decode办法将字节数组转化为字符串。

接下来，函数创立了一个Uint8List方针，并运用buffer属性获取其底层的字节缓冲区。然后，运用Uint8List.view办法创立一个新的Uint8List方针，该方针与原始的字节缓冲区同享内存。

接下来，函数运用循环将解码后的字符串中的每个字符的Unicode码点仿制到新创立的Uint8List方针中。最终，函数运用Blob结构函数创立一个新的Blob方针，并将其回来。

下面是一个简略的示例，演示了怎么运用dataURItoBlob函数将数据URI转化为Blob方针：

final dataURI =
    'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==';
final blob = dataURItoBlob(dataURI);
print(blob.type); // 输出：image/png
print(blob.size); // 输出：85

在上面的代码中，咱们首要创立了一个包含PNG图像数据的数据URI，然后调用dataURItoBlob函数将数据URI转化为一个Blob方针。最终，咱们打印出了转化后的Blob方针的类型和巨细。

dataURItoBlob函数供给了一种简略的办法，用于将数据URI转化为Blob方针。您能够在需求处理数据URI的地方运用这个函数。

期望这个文档能够协助您了解dataURItoBlob函数的功用和用法。假如您需求更多协助，欢迎持续发问。

UI组件

import 'package:flutter/material.dart';
void main() => runApp(CounterApp());
class CounterApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Counter App',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: CounterScreen(),
    );
  }
}
class CounterScreen extends StatefulWidget {
  @override
  _CounterScreenState createState() => _CounterScreenState();
}
class _CounterScreenState extends State<CounterScreen> {
  int _counter = 0;
  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Counter App'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              'Counter:',
              style: TextStyle(fontSize: 24),
            ),
            Text(
              '$_counter',
              style: TextStyle(fontSize: 48, fontWeight: FontWeight.bold),
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}

GitHub Copilot

This file contains the implementation of a simple Flutter app that displays a counter.

The app consists of two main components: a [CounterApp] widget and a [CounterScreen] widget.

The [CounterApp] widget is a [StatelessWidget] that sets up the app’s theme and initial screen.

The [CounterScreen] widget is a [StatefulWidget] that manages the app’s state and displays the counter.

The counter can be incremented by tapping the floating action button.

GPT3.5

下面是将Flutter计数器运用程序转化为文档的格局化版本：

• Counter App

这是一个简略的计数器运用程序，答运用户递加一个计数器的值。

• 运用办法

1. 在Flutter环境中创立一个新的Flutter运用程序。
2. 将以下代码仿制并替换lib/main.dart文件中的内容。
3. 运转运用程序，您将看到一个具有计数器和增加按钮的界面。
4. 每次点击增加按钮时，计数器的值将增加。

• 代码

import 'package:flutter/material.dart';
void main() => runApp(CounterApp());
class CounterApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Counter App',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: CounterScreen(),
    );
  }
}
class CounterScreen extends StatefulWidget {
  @override
  _CounterScreenState createState() => _CounterScreenState();
}
class _CounterScreenState extends State<CounterScreen> {
  int _counter = 0;
  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Counter App'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              'Counter:',
              style: TextStyle(fontSize: 24),
            ),
            Text(
              '$_counter',
              style: TextStyle(fontSize: 48, fontWeight: FontWeight.bold),
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}

• 说明

• CounterApp是运用程序的进口点，它运用MaterialApp作为根组件，并设置运用程序的主题和主页。

• CounterScreen是一个有状态的小部件，用于显现计数器和增加按钮。

• _CounterScreenState保护计数器的当时值，并经过调用setState办法来更新界面。

• 界面包含一个AppBar，显现运用程序的标题；一个居中的Column小部件，包含一个用于显现文本标签和计数器值的Text小部件；以及一个起浮操作按钮(FloatingActionButton)，用于增加计数器的值。

• 每次点击起浮操作按钮时，将调用_incrementCounter办法，该办法经过调用setState办法来更新计数器的值，并从头构建界面以反映新的值。

期望这个格局化的文档对您有所协助！

Bard

The CounterApp class is a Flutter class that creates a simple counter app. The app has a counter that can be incremented by pressing the floating action button. The counter is displayed in the center of the app.

The CounterApp class extends the StatelessWidget class. This means that the class does not have any state. The state of the counter is managed by the _CounterScreenState class.

The CounterApp class has a build() method that returns a MaterialApp widget. The MaterialApp widget is the root widget of the app. The MaterialApp widget has a title property that is set to “Counter App”. The MaterialApp widget also has a theme property that is set to a ThemeData object with the primarySwatch property set to Colors.blue.

The CounterApp class also has a home property that is set to a CounterScreen widget. The CounterScreen widget is the home screen of the app.

The CounterScreen class is a Flutter class that creates a screen with a counter. The counter is displayed in the center of the screen. The counter can be incremented by pressing the floating action button.

The CounterScreen class extends the StatefulWidget class. This means that the class has state. The state of the counter is stored in the _counter property.

The CounterScreen class has a build() method that returns a Scaffold widget. The Scaffold widget is a layout widget that provides a basic structure for an app. The Scaffold widget has an appBar property that is set to an AppBar widget with the title property set to “Counter App”. The Scaffold widget also has a body property that is set to a Center widget with a Column widget as its child. The Column widget has two children: a Text widget with the text “Counter:” and a Text widget with the value of the counter.

The CounterScreen class also has a _incrementCounter() method that increments the counter by 1. The _incrementCounter() method is called when the floating action button is pressed.

The CounterApp class is a simple Flutter class that creates a simple counter app. The app has a counter that can be incremented by pressing the floating action button. The counter is displayed in the center of the app.

Bing

这段代码演示了怎么运用Flutter结构构建一个简略的计数器运用程序。运用程序包含两个类：CounterApp和CounterScreen。

CounterApp类承继自StatelessWidget，它是运用程序的根组件。在build办法中，它创立了一个MaterialApp组件，并设置了运用程序的标题、主题和主页。

CounterScreen类承继自StatefulWidget，它表明运用程序的主页。它包含一个名为_CounterScreenState的内部类，该类承继自State<CounterScreen>，用于办理运用程序的状态。

在_CounterScreenState类中，咱们界说了一个名为_counter的整数变量，用于存储计数器的当时值。咱们还界说了一个名为_incrementCounter的办法，该办法运用setState办法来递加计数器的值。

在build办法中，咱们创立了一个包含若干组件的界面。首要，咱们创立了一个Scaffold组件，并设置了运用程序栏的标题。然后，在界面的中央，咱们创立了一个垂直摆放的列（Column），并在其间增加了两个文本（Text）组件，分别显现“Counter:”和计数器的当时值。最终，咱们创立了一个起浮操作按钮（FloatingActionButton），并设置了按钮的图标、提示文本和点击事情处理函数。

当用户点击起浮操作按钮时，会调用按钮的点击事情处理函数（即上面界说的_incrementCounter办法）。在这个办法中，咱们运用setState办法来递加计数器的值，并通知结构重建界面。

这便是这段代码的基本功用和作业原理。它演示了怎么运用Flutter结构构建一个简略的计数器运用程序，包含怎么界说组件、办理状态、处理用户交互等。

期望这个文档能够协助您了解这段代码的功用和用法。假如您需求更多协助，欢迎持续发问。

技能计划

• 关于JS 与 webview_flutter交互

GitHub Copilot

在Flutter中，咱们能够运用webview_flutter插件来嵌入Web视图。这个插件供给了一个WebView Widget，它能够在Flutter运用程序中显现Web内容。在某些情况下，咱们或许需求在WebView中加载JavaScript，并与Flutter运用程序进行交互。下面是一些技能计划，能够协助咱们完结这个方针。

1. 运用JavaScriptChannel JavaScriptChannel是一个Flutter类，它答应咱们在WebView中注册一个JavaScript函数，该函数能够与Flutter运用程序进行交互。在Flutter中，咱们能够运用WebView的onWebViewCreated回调来获取WebViewController。然后，咱们能够运用JavaScriptChannel的setMethodCallHandler办法来注册一个JavaScript函数，该函数能够在WebView中调用。在Flutter中，咱们能够运用invokeMethod办法来调用JavaScript函数。

2. 运用evalJavascript WebView供给了一个evalJavascript办法，它能够在WebView中履行JavaScript代码。在Flutter中，咱们能够运用WebView的onWebViewCreated回调来获取WebViewController。然后，咱们能够运用evalJavascript办法来履行JavaScript代码。在JavaScript代码中，咱们能够运用window.flutter_inject办法来调用Flutter运用程序中的办法。在Flutter中，咱们能够运用WebView的onJavascriptMessage回调来接收来自JavaScript的音讯。

3. 运用Flutter Webview Plugin Flutter Webview Plugin是一个Flutter插件，它供给了一个WebView Widget，它能够在Flutter运用程序中显现Web内容。该插件供给了一些办法，能够协助咱们完结JavaScript与Flutter运用程序之间的交互。例如，咱们能够运用evaluateJavascript办法来履行JavaScript代码。咱们还能够运用onStateChanged回调来接收来自WebView的状态更改事情。

总的来说，以上这些技能计划都能够协助咱们完结JavaScript与Flutter运用程序之间的交互。咱们能够依据自己的需求选择合适自己的计划。不管咱们选择哪种计划，咱们都应该注意安全性和功用，以保证咱们的运用程序能够正常运转。

GPT3.5

• JS与webview_flutter交互技能计划

在移动运用开发中，webview_flutter是一个常用的插件，它供给了在Flutter运用中嵌入Web视图的功用。经过运用webview_flutter，咱们能够加载网页内容、展现Web运用、完结混合开发等。

与Web视图进行交互是很常见的需求，能够经过JS与webview_flutter之间进行通讯，完结数据传递和办法调用。下面是一种常见的技能计划，用于完结JS与webview_flutter的交互。

• 过程

1. 加载网页内容：运用webview_flutter加载需求展现的网页内容。能够经过指定URL加载网页，或者运用WebView.initialUrl属性加载本地HTML文件。

2. JS调用Flutter代码：在webview_flutter中，能够经过注入JavaScript代码来调用Flutter的办法。经过运用JavascriptChannel，咱们能够在Flutter中注册一个JavaScript通道，JavaScript能够经过该通道向Flutter发送音讯。

   // 在webview_flutter中注册一个JavaScript通道
   WebView(
     ...
     javascriptChannels: <JavascriptChannel>[
       JavascriptChannel(
         name: 'MyChannel',
         onMessageReceived: (JavascriptMessage message) {
           // 处理JavaScript发来的音讯
           String jsData = message.message;
           // 调用Flutter办法
           // ...
         },
       ),
     ].toSet(),
     ...
   )
   

3. Flutter代码调用JS：在Flutter中，能够经过webview_flutter的WebViewController履行JavaScript代码。咱们能够经过WebViewController.evaluateJavascript办法履行任意的JavaScript代码。

   // 获取WebViewController
   WebViewController _controller;
   // 调用JavaScript代码
   _controller.evaluateJavascript('your javascript code');
   

4. 传递数据：经过JavaScript和Flutter之间的通讯，能够传递数据。能够运用JSON格局在两者之间传递数据。在JavaScript中，能够运用JSON.stringify将数据转化为JSON字符串，在Flutter中，能够运用jsonEncode将数据转化为JSON字符串。

   // JavaScript中将数据转化为JSON字符串
   var jsonData = JSON.stringify(data);
   // Flutter中将数据转化为JSON字符串
   String jsonString = jsonEncode(data);
   

   在JavaScript中，能够运用JSON.parse将JSON字符串转化为JavaScript方针；在Flutter中，能够运用jsonDecode将JSON字符串转化为Dart方针。

   // JavaScript中将JSON字符串转化为JavaScript方针
   var data = JSON.parse(jsonData);
   // Flutter中将JSON字符串转化为Dart方针
   var data = jsonDecode(jsonString);
   

以上是一种常见的JS与webview_flutter交互的技能计划。经过运用JavaScript通道和WebViewController，咱们能够完结双向通讯，从而在JS和Flutter之间传递数据和调用办法。这种技能计划使得在webview_flutter中嵌入Web内容并与Flutter运用进行交互变得愈加灵活和强大。

期望这个技能

计划对您在JS与webview_flutter交互方面的开发有所协助！

Bard

The webview_flutter plugin allows Flutter apps to display web content in a native view. This plugin provides a bridge between Dart and JavaScript, which allows the two languages to interact with each other.

To interact with JS from Flutter, you can use the JavascriptChannel class. The JavascriptChannel class provides a way to send messages to and from JavaScript. You can use the JavascriptChannel class to call JavaScript functions, pass data to JavaScript, and receive data from JavaScript.

To call a JavaScript function from Flutter, you can use the invokeMethod() method of the JavascriptChannel class. The invokeMethod() method takes the name of the JavaScript function as its first argument and the arguments to the function as its remaining arguments.

For example, the following code calls the alert() function from JavaScript:

Code snippet

final javascriptChannel = JavascriptChannel(
  name: 'myJavascriptChannel',
  onMessageReceived: (message) {
    print(message);
  },
);
webView.addJavascriptChannel(javascriptChannel);
javascriptChannel.invokeMethod('alert', ['Hello, world!']);

This code will call the alert() function from JavaScript and pass the string “Hello, world!” as an argument. The alert() function will then display an alert dialog with the message “Hello, world!”.

To pass data to JavaScript, you can use the postMessage() method of the JavascriptChannel class. The postMessage() method takes the data to be passed to JavaScript as its first argument.

For example, the following code passes the number 10 to JavaScript:

Code snippet

final javascriptChannel = JavascriptChannel(
  name: 'myJavascriptChannel',
  onMessageReceived: (message) {
    print(message);
  },
);
webView.addJavascriptChannel(javascriptChannel);
javascriptChannel.postMessage(10);

This code will pass the number 10 to JavaScript. JavaScript can then access the number 10 by using the window.myJavascriptChannel.data property.

To receive data from JavaScript, you can use the onMessageReceived() callback of the JavascriptChannel class. The onMessageReceived() callback will be called when JavaScript sends a message to Flutter.

For example, the following code defines a callback that will be called when JavaScript sends a message to Flutter:

Code snippet

final javascriptChannel = JavascriptChannel(
  name: 'myJavascriptChannel',
  onMessageReceived: (message) {
    print(message);
  },
);
webView.addJavascriptChannel(javascriptChannel);

When JavaScript sends a message to Flutter, the onMessageReceived() callback will be called and the message will be passed to the callback as its only argument.

The webview_flutter plugin provides a powerful way to interact with JS from Flutter. This plugin can be used to call JavaScript functions, pass data to JavaScript, and receive data from JavaScript.

Bing

在Flutter运用程序中，您能够运用webview_flutter插件来嵌入一个WebView组件，用于显现网页内容。此外，您还能够运用JavaScript与WebView组件进行交互，以完结更丰厚的功用。

下面是一个简略的技能计划，介绍了如安在Flutter运用程序中运用webview_flutter插件与JavaScript进行交互。

首要，您需求在Flutter运用程序中装置webview_flutter插件。您能够在pubspec.yaml文件中增加如下依靠项：

dependencies:
  webview_flutter: ^2.3.1

然后，您能够在运用程序中创立一个WebView组件，并运用initialUrl属性指定要加载的网页URL。例如：

import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';
class WebViewScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('WebView Demo'),
      ),
      body: WebView(
        initialUrl: 'https://example.com',
      ),
    );
  }
}

接下来，您能够运用WebView组件的javascriptMode属性来启用JavaScript支持。例如：

WebView(
  initialUrl: 'https://example.com',
  javascriptMode: JavascriptMode.unrestricted,
)

现在，您能够在网页中运用JavaScript代码了。可是，假如您期望Flutter运用程序与网页中的JavaScript代码进行交互，您还需求运用JavascriptChannel类来界说一个JavaScript通道。

例如，下面的代码演示了怎么界说一个名为MessageHandler的JavaScript通道，并在网页中调用它：

WebView(
  initialUrl: 'https://example.com',
  javascriptMode: JavascriptMode.unrestricted,
  javascriptChannels: {
    JavascriptChannel(
      name: 'MessageHandler',
      onMessageReceived: (JavascriptMessage message) {
        // 处理从网页中接收到的音讯
        print('Received message from web page: ${message.message}');
      },
    ),
  },
)

在上面的代码中，咱们界说了一个名为MessageHandler的JavaScript通道，并指定了当从网页中接收到音讯时调用的回调函数。在这个回调函数中，咱们能够处理从网页中接收到的音讯。

最终，在网页中，您能够运用下面的JavaScript代码来向Flutter运用程序发送音讯：

window.MessageHandler.postMessage('Hello from web page!');

在上面的代码中，咱们运用了window.MessageHandler.postMessage办法来向Flutter运用程序发送一条音讯。当Flutter运用程序接收到这条音讯时，它会调用上面界说的回调函数来处理这条音讯。

这便是一个简略的技能计划，介绍了如安在Flutter运用程序中运用webview_flutter插件与JavaScript进行交互。经过运用JavaScript通道，您能够完结Flutter运用程序与网页之间的双向通讯。

期望这个技能计划能够协助您了解如安在Flutter运用程序中与JavaScript进行交互。假如您需求更多协助，欢迎持续发问。

评测总结

• 代码生成
  • 生成函数（都不错，Bard 长处为最新代码）
  • 生成API调用 （都能用，不过需求人工审核下，GPT3.5 长处是加了反常捕捉）
  • 类型注释（都有注释，Bing 长处是精确注释）
  • UI组件（都不错，需求人工校验，补下其他代码）
  • 套路代码（都能够拿来直接用，特别是用来写json类，十分方便）
• 问题修正
  • 类型过错（都能够识别并解决）
  • 未界说的变量（都能识别，不够Bard 没有解决int和double的问题）
  • 未捕捉的反常（ 只有GPT3.5加了try catch）
  • 未完结的接口办法（除了Bard 其他都补了完结）
• 代码重构
  • 合理的变量和函数命名（都能够重命名，不过GPT3.5 补的最优）
  • 消除重复代码（Bard/Bing 去除了重复代码）
  • 简化条件句子 （都没啥简化）
  • 潜在的功用问题（bing给了说明，GPT3.5微优化）
• UT生成
  • 纯函数（都没啥问题）
  • 包含UI操作（都没啥问题）
  • 依靠全局变量（都没啥问题）
  • 包含异步操作（都没啥问题）
• 文档编写
  • 纯函数（GPT3.5写的最好，生成的是md格局）
  • UI组件（GPT3.5写的最好，生成的是md格局）
  • 技能计划（GPT3.5写的最好，生成的是md格局）

个人定论

• GitHub Copilot
  • 运用vscode 的哥能够冲，不过100美刀/年，能够免费用1个月
• GPT-3.5
  • 假如有钱直接上GPT-4，否则的话GPT-3.5也想当不错，归纳才能超卓。仅有缺陷便是不是最新的。
• Bard
  • 长处最新的，缺陷英文的，总体感觉没GPT-3.5舒畅，偶尔搜下新库的代码
• Bing
  • 免费，一天能够用30次/每个号，注释挺惊艳，不过有时候代码过长或许需求不断的让它，持续

综上，小弟更倾向于GPT-3.5/GPT-4，其他都是辅佐

参考资料

1. GitHub Copilot:

   • 官方文档: GitHub Copilot
   • GitHub Copilot 是一款由 OpenAI 开发的人工智能代码助手，它运用了相似 GPT-3.5 的言语模型，可认为开发者供给代码补全、主动完结和建议等功用。

2. GPT-3.5:

   • OpenAI Blog: GPT-3.5: Language Models are Few-Shot Learners
   • GPT-3.5 是 OpenAI 开发的根据 GPT-3 架构的一种言语模型。它具有强大的自然言语处理和生成才能，能够用于文本生成、对话模型等各种使命。

3. Bard:

   • GitHub 仓库: Bard
   • Bard 是一个开源的根据 GPT-3.5 的代码生成东西，它能够依据给定的描绘生成相应的代码。Bard 主要用于主动化软件工程范畴的使命，如依据自然言语描绘生成程序代码。

4. Bing:

   • Bing Search Services:Bing Search Services 开发人员文档
   • Bing 供给了多种开发者东西和服务，包含 Bing 搜索 API、Bing Maps API、Bing 图像搜索 API 等。