Flutter账户数据保护插件account_saver_against_uninstall的使用

Flutter账户数据保护插件account_saver_against_uninstall的使用

account_saver_against_uninstall 是一个用于保护 Flutter 应用中账户数据的插件。它可以在用户卸载应用后重新安装时恢复之前保存的数据。

开始使用

环境配置

首先，确保你已经正确配置了 Flutter 开发环境，并且可以创建和运行基本的 Flutter 应用。

添加依赖

在你的 pubspec.yaml 文件中添加 account_saver_against_uninstall 插件依赖：

dependencies:
  flutter:
    sdk: flutter
  account_saver_against_uninstall: ^版本号

替换 版本号 为你需要的具体版本号。

初始化插件

在你的 Flutter 应用中初始化并使用 account_saver_against_uninstall 插件。以下是一个完整的示例代码：

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

import 'package:flutter/services.dart';
import 'package:account_saver_against_uninstall/account_saver_against_uninstall.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> {
  String _platformVersion = '未知平台版本';
  final _accountSaverAgainstUninstallPlugin = AccountSaverAgainstUninstall();

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

  // 异步方法初始化平台状态
  Future<void> initPlatformState() async {
    String platformVersion;
    // 可能会抛出 PlatformException，处理消息可能返回 null 的情况
    try {
      platformVersion = await _accountSaverAgainstUninstallPlugin.getPlatformVersion() ?? '未知平台版本';
    } on PlatformException {
      platformVersion = '获取平台版本失败。';
    }

    // 如果小部件在异步平台消息飞行期间从树中移除，则丢弃回复而不是调用 setState 更新我们的非存在外观。
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('插件示例应用'),
        ),
        body: Center(
          child: Column(
            children: [
              Text('运行在: $_platformVersion\n'),
              ElevatedButton(
                onPressed: () async {
                  IAccountSaver().init(1, 3, 0, true);
                  var selectAccount = await IAccountSaver().selectAccount(0, "123");
                  debugPrint(selectAccount.toString());
                },
                child: Text("选择测试账号"),
              ),
              ElevatedButton(
                onPressed: () {
                  IAccountSaver().init(1, 3, 0, true);
                  IAccountSaver().saveAccount(0, "123", "test1", "pw1");
                },
                child: Text("保存测试账号"),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

示例代码解释

1. 导入依赖：

   import 'package:account_saver_against_uninstall/account_saver_pigeon_generated.dart';
   import 'package:flutter/material.dart';
   import 'dart:async';
   
   import 'package:flutter/services.dart';
   import 'package:account_saver_against_uninstall/account_saver_against_uninstall.dart';
   

2. 定义主应用类：

   void main() {
     runApp(const MyApp());
   }
   
   class MyApp extends StatefulWidget {
     const MyApp({super.key});
   
     [@override](/user/override)
     State<MyApp> createState() => _MyAppState();
   }
   

3. 初始化平台状态：

   class _MyAppState extends State<MyApp> {
     String _platformVersion = '未知平台版本';
     final _accountSaverAgainstUninstallPlugin = AccountSaverAgainstUninstall();
   
     [@override](/user/override)
     void initState() {
       super.initState();
       initPlatformState();
     }
   
     Future<void> initPlatformState() async {
       String platformVersion;
       try {
         platformVersion = await _accountSaverAgainstUninstallPlugin.getPlatformVersion() ?? '未知平台版本';
       } on PlatformException {
         platformVersion = '获取平台版本失败。';
       }
       if (!mounted) return;
       setState(() {
         _platformVersion = platformVersion;
       });
     }
   

4. 构建界面：

   [@override](/user/override)
   Widget build(BuildContext context) {
     return MaterialApp(
       home: Scaffold(
         appBar: AppBar(
           title: const Text('插件示例应用'),
         ),
         body: Center(
           child: Column(
             children: [
               Text('运行在: $_platformVersion\n'),
               ElevatedButton(
                 onPressed: () async {
                   IAccountSaver().init(1, 3, 0, true);
                   var selectAccount = await IAccountSaver().selectAccount(0, "123");
                   debugPrint(selectAccount.toString());
                 },
                 child: Text("选择测试账号"),
               ),
               ElevatedButton(
                 onPressed: () {
                   IAccountSaver().init(1, 3, 0, true);
                   IAccountSaver().saveAccount(0, "123", "test1", "pw1");
                 },
                 child: Text("保存测试账号"),
               ),
             ],
           ),
         ),
       ),
     );
   }