Flutter字符串处理插件string_plugin_test的使用

Flutter字符串处理插件string_plugin_test的使用

这个插件用于打开邮件应用并发送邮件。

开始使用

不同的用例包括：

1. openEmailApp()
2. openEmailWithForSingleReceiverOnly(String receiverEmailId, List<String> cc, List<String> bcc)
3. openEmailWithForMultipleReceiverOnly(List<String> receiverEmailIds, List<String> cc, List<String> bcc)
4. openEmailWithForSingleReceiverWithSubject(String receiverEmailId, String subject, List<String> cc, List<String> bcc)
5. openEmailWithForMultipleReceiverWithSubject(List<String> receiverEmailIds, String subject, List<String> cc, List<String> bcc)
6. openEmailWithBodyOnly(String body, List<String> cc, List<String> bcc)

实现步骤

1. 将插件添加到你的pubspec.yaml文件中：

dependencies:
  string_plugin_test: ^0.0.2

1. 导入插件包：

import 'package:string_plugin_test/string_plugin_test.dart';

1. 在Android项目的AndroidManifest.xml文件中添加必要的权限（如果需要）。

完整示例代码

下面是一个完整的示例代码，展示了如何使用该插件进行不同类型的邮件操作。

示例代码：lib/main.dart

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

import 'package:flutter/services.dart';
import 'package:string_plugin_test/string_plugin_test.dart';

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

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

  [@override](/user/override)
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  final _stringPluginTestPlugin = StringPluginTest();

  [@override](/user/override)
  void initState() {
    super.initState();
    initPlatformState();
  }

  // 初始化平台状态
  Future<void> initPlatformState() async {
    String platformVersion;
    try {
      platformVersion = await _stringPluginTestPlugin.getPlatformVersion() ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    if (!mounted) return;

    // 如果需要更新UI可以在这里调用setState
    // setState(() {
    //   _platformVersion = platformVersion;
    // });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: '自定义邮件插件示例',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: EmailDemoPage(),
    );
  }
}

class EmailDemoPage extends StatelessWidget {
  const EmailDemoPage({Key? key}) : super(key: key);

  // 打开默认邮箱应用
  void _openEmailApp() async {
    try {
      await StringPluginTest.openEmailApp();
    } catch (e) {
      debugPrint('错误: $e');
    }
  }

  // 打开邮箱并设置主题
  void _openEmailWithSubject() async {
    try {
      await StringPluginTest.openEmailWithForSingleReceiverWithSubject('ruchita.bhaskar@gmail.com', "测试主题");
    } catch (e) {
      debugPrint('错误: $e');
    }
  }

  // 打开邮箱并设置单个收件人
  void _openEmailWithForSingleReceiverOnly() async {
    try {
      await StringPluginTest.openEmailWithForSingleReceiverOnly("ruchita.bhaskar@gmail.com");
    } catch (e) {
      debugPrint('错误: $e');
    }
  }

  // 打开邮箱并设置多个收件人
  void _openEmailWithForMultipleReceiverOnly() async {
    try {
      await StringPluginTest.openEmailWithForMultipleReceiverOnly(["ruchita.bhaskar@gmail.com", "ruchitab@fermion.in"]);
    } catch (e) {
      debugPrint('错误: $e');
    }
  }

  // 打开邮箱并设置多个收件人及主题
  void _openEmailWithForMultipleReceiverWithSubject() async {
    try {
      await StringPluginTest.openEmailWithForMultipleReceiverWithSubject(["ruchita.bhaskar@gmail.com", "ruchitab@fermion.in"], "多个收件人主题");
    } catch (e) {
      debugPrint('错误: $e');
    }
  }

  // 发送包含正文的邮件
  void _shareEmailWithBody() async {
    try {
      await StringPluginTest.openEmailWithBodyOnly('这是邮件的正文。');
    } catch (e) {
      debugPrint('错误: $e');
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('邮件插件示例'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            ElevatedButton(
              onPressed: _openEmailApp,
              child: const Text('打开邮箱应用'),
            ),
            ElevatedButton(
              onPressed: _openEmailWithSubject,
              child: const Text('打开带有特定主题的邮箱'),
            ),
            ElevatedButton(
              onPressed: _openEmailWithForSingleReceiverOnly,
              child: const Text('打开带有单个收件人的邮箱'),
            ),
            ElevatedButton(
              onPressed: _openEmailWithForMultipleReceiverOnly,
              child: const Text('打开带有多个收件人的邮箱'),
            ),
            ElevatedButton(
              onPressed: _openEmailWithForMultipleReceiverWithSubject,
              child: const Text('打开带有多个收件人和主题的邮箱'),
            ),
            ElevatedButton(
              onPressed: _shareEmailWithBody,
              child: const Text('分享带有正文的邮件'),
            ),
          ],
        ),
      ),
    );
  }
}