Flutter应用升级检测插件is_app_upgraded的使用

一个简单的Flutter插件，用于检查当前运行的应用是否刚刚升级。

内部使用了<a href="https://pub.dev/packages/shared_preferences">shared_preferences</a>插件和<a href="https://pub.dev/packages/package_info_plus">package_info_plus</a>插件。

开始使用

在pubspec.yaml文件中添加is_app_upgraded作为依赖项：

dependencies:
  is_app_upgraded: ^x.x.x

然后运行以下命令以获取依赖项：

flutter pub get

使用方法

首先导入is_app_upgraded包：

import 'package:is_app_upgraded/is_app_upgraded.dart';

接下来，通过调用IsAppUpgraded.isAppUpgraded()来检查应用是否刚刚升级：

bool isappupgraded = await IsAppUpgraded.isAppUpgraded();

完整示例代码

以下是一个完整的示例代码，展示了如何使用is_app_upgraded插件来检测应用是否刚刚升级：

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

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

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

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  [@override](/user/override)
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
            ElevatedButton(
              onPressed: () {
                showDialog(
                  context: context,
                  builder: (ctx) {
                    return FutureBuilder<bool>(
                      future: IsAppUpgraded.isAppUpgraded(),
                      initialData: false,
                      builder: (ctx, snapshot) {
                        if (snapshot.connectionState == ConnectionState.done) {
                          bool isappupgraded = snapshot.data!;
                          return CheckAppUpgradedDialog(ctx, isappupgraded);
                        } else {
                          return CircularProgressIndicator();
                        }
                      },
                    );
                  },
                );
              },
              child: const Text('CHECK APP IF HAS BEEN UPGRADED'),
            )
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ),
    );
  }

  AlertDialog CheckAppUpgradedDialog(BuildContext ctx, bool isAppUpgraded) {
    return AlertDialog(
      title: const Text('CHECK APP IF HAS BEEN UPGRADED'),
      content: isAppUpgraded
          ? const Text('App IS Upgraded')
          : const Text('App NOT Upgraded'),
      actions: <Widget>[
        TextButton(
          onPressed: () {
            Navigator.of(ctx).pop();
          },
          child: Container(
            color: Colors.green,
            padding: const EdgeInsets.all(14),
            child: const Text('Okay'),
          ),
        )
      ],
    );
  }
}