如何在IOS Flutter中卸载ipa时删除共享首选项

import 'package:flutter/widgets.dart';

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
  }

  @override
  void dispose() {
    WidgetsBinding.instance.removeObserver(this);
    super.dispose();
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    if (state == AppLifecycleState.inactive ||
        state == AppLifecycleState.paused) {
      // 在应用程序进入非活动状态或暂停状态时删除共享首选项
      deleteSharedPrefs();
    }
  }

  void deleteSharedPrefs() {
    // 使用shared_preferences插件删除共享首选项
    SharedPreferences.getInstance().then((prefs) {
      prefs.clear();
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      // 应用程序的其他配置
    );
  }
}