Flutter |如何从共享首选项中删除特定密钥

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: HomePage(),
    );
  }
}

class HomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Shared Preferences Demo'),
      ),
      body: Center(
        child: RaisedButton(
          child: Text('Delete Key'),
          onPressed: () {
            deleteKey();
          },
        ),
      ),
    );
  }

  void deleteKey() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    prefs.remove('your_key'); // 替换为要删除的密钥
  }
}