Flutter摩尔斯电码转换插件morse_code_translator的使用

发布于 1周前 作者 itying888 来自 Flutter

Flutter摩尔斯电码转换插件morse_code_translator的使用

使用说明

1. 添加依赖

首先,在你的 pubspec.yaml 文件中添加 morse_code_translator 依赖:

dependencies:
  morse_code_translator: ^0.0.1

2. 导入库

在你的 Dart 项目中导入 morse_code_translator 库:

import 'package:morse_code_translator/morse_code_translator.dart';

解码摩尔斯电码

示例代码

我们将使用以下摩尔斯电码进行解码:

String decodingValue = ".... .. / - .... . .-. . / .... --- .-- / .- .-. . / -.-- --- ..- ..--..";

接下来,我们需要将摩尔斯电码解码为对应的字符串。首先,初始化 MorseCode 对象:

MorseCode meroMorseCode = MorseCode();
var de = meroMorseCode.deCode(decodingValue);

然后,我们可以打印解码后的结果:

print("The morse code '$decodingValue' is decoded to corresponding String:");
print(de);

输出结果如下:

The morse code '.... .. / - .... . .-. . / .... --- .-- / .- .-. . / -.-- --- ..- ..--..' is decoded to corresponding String:
HI THERE HOW ARE YOU?

你可以将解码后的字符串传递给 Flutter 的 Text 小部件或 TextFieldonChanged 属性来显示在界面上。

编码字符串为摩尔斯电码

示例代码

我们将使用以下字符串进行编码:

String encodingValue = "Hi there how are you?";

接下来,我们需要将字符串编码为对应的摩尔斯电码。首先,初始化 MorseCode 对象:

MorseCode meroMorseCode = MorseCode();
var en = meroMorseCode.enCode(encodingValue);

然后,我们可以打印编码后的结果:

print("The String '$encodingValue' is encoded to corresponding morse code:");
print("$en\n");

输出结果如下:

The String 'Hi there how are you?' is encoded to corresponding morse code:
.... .. / - .... . .-. . / .... --- .-- / .- .-. . / -.-- --- ..- ..--..

同样地,你可以将编码后的摩尔斯电码传递给 Flutter 的 Text 小部件或 TextFieldonChanged 属性来显示在界面上。

完整示例 Demo

以下是一个完整的 Flutter 示例应用,展示了如何使用 morse_code_translator 插件进行摩尔斯电码的编码和解码,并将其结果显示在界面上:

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

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Morse Code Translator',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MorseCodeTranslatorPage(),
    );
  }
}

class MorseCodeTranslatorPage extends StatefulWidget {
  [@override](/user/override)
  _MorseCodeTranslatorPageState createState() => _MorseCodeTranslatorPageState();
}

class _MorseCodeTranslatorPageState extends State<MorseCodeTranslatorPage> {
  final TextEditingController _textEditingController = TextEditingController();
  final TextEditingController _morseEditingController = TextEditingController();
  final MorseCode _morseCode = MorseCode();

  String _decodedText = '';
  String _encodedMorse = '';

  void _encodeText() {
    setState(() {
      _encodedMorse = _morseCode.enCode(_textEditingController.text);
    });
  }

  void _decodeMorse() {
    setState(() {
      _decodedText = _morseCode.deCode(_morseEditingController.text);
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Morse Code Translator'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          children: [
            TextField(
              controller: _textEditingController,
              decoration: InputDecoration(
                labelText: '输入要编码的文本',
              ),
            ),
            SizedBox(height: 16.0),
            ElevatedButton(
              onPressed: _encodeText,
              child: Text('编码为摩尔斯电码'),
            ),
            SizedBox(height: 16.0),
            Text(
              '编码后的摩尔斯电码:',
              style: TextStyle(fontSize: 16.0, fontWeight: FontWeight.bold),
            ),
            Text(
              _encodedMorse,
              style: TextStyle(fontSize: 16.0),
            ),
            SizedBox(height: 32.0),
            TextField(
              controller: _morseEditingController,
              decoration: InputDecoration(
                labelText: '输入要解码的摩尔斯电码',
              ),
            ),
            SizedBox(height: 16.0),
            ElevatedButton(
              onPressed: _decodeMorse,
              child: Text('解码为文本'),
            ),
            SizedBox(height: 16.0),
            Text(
              '解码后的文本:',
              style: TextStyle(fontSize: 16.0, fontWeight: FontWeight.bold),
            ),
            Text(
              _decodedText,
              style: TextStyle(fontSize: 16.0),
            ),
          ],
        ),
      ),
    );
  }
}

更多关于Flutter摩尔斯电码转换插件morse_code_translator的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter摩尔斯电码转换插件morse_code_translator的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


当然,以下是如何在Flutter项目中使用morse_code_translator插件的示例代码。这个插件允许你将文本转换为摩尔斯电码,以及将摩尔斯电码转换回文本。

首先,确保你已经在pubspec.yaml文件中添加了morse_code_translator依赖:

dependencies:
  flutter:
    sdk: flutter
  morse_code_translator: ^latest_version  # 请替换为最新版本号

然后运行flutter pub get来安装依赖。

接下来,你可以在Flutter项目中创建一个简单的界面来演示如何使用这个插件。以下是一个完整的示例:

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

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Morse Code Translator Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MorseCodeTranslatorDemo(),
    );
  }
}

class MorseCodeTranslatorDemo extends StatefulWidget {
  @override
  _MorseCodeTranslatorDemoState createState() => _MorseCodeTranslatorDemoState();
}

class _MorseCodeTranslatorDemoState extends State<MorseCodeTranslatorDemo> {
  final TextEditingController _textController = TextEditingController();
  final TextEditingController _morseController = TextEditingController();
  String _translatedText = '';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Morse Code Translator Demo'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            TextField(
              controller: _textController,
              decoration: InputDecoration(labelText: 'Enter Text'),
              keyboardType: TextInputType.text,
              maxLines: 4,
            ),
            SizedBox(height: 16),
            ElevatedButton(
              onPressed: () {
                String morseCode = MorseCodeTranslator.textToMorse(_textController.text);
                setState(() {
                  _morseController.text = morseCode;
                  _translatedText = morseCode;
                });
              },
              child: Text('Text to Morse'),
            ),
            SizedBox(height: 16),
            TextField(
              controller: _morseController,
              decoration: InputDecoration(labelText: 'Enter Morse Code'),
              keyboardType: TextInputType.text,
              maxLines: 4,
            ),
            SizedBox(height: 16),
            ElevatedButton(
              onPressed: () {
                String text = MorseCodeTranslator.morseToText(_morseController.text);
                setState(() {
                  _translatedText = text;
                  // 不需要更新_textController.text,因为我们通常不会在UI中显示原始输入文本的变化
                });
              },
              child: Text('Morse to Text'),
            ),
            SizedBox(height: 16),
            Text(
              'Translated Text: $_translatedText',
              style: TextStyle(fontSize: 18),
            ),
          ],
        ),
      ),
    );
  }
}

这个示例代码创建了一个简单的Flutter应用,包含两个文本输入框,一个用于输入普通文本,另一个用于输入摩尔斯电码。通过点击按钮,你可以在两个输入框之间进行转换,并在底部显示转换后的结果。

  • MorseCodeTranslator.textToMorse 方法将普通文本转换为摩尔斯电码。
  • MorseCodeTranslator.morseToText 方法将摩尔斯电码转换回普通文本。

请确保你替换了pubspec.yaml中的latest_version为实际的最新版本号。你可以通过访问pub.dev上的morse_code_translator包页面来获取最新版本号。

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