Flutter :警告对话框通过键盘隐藏

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Flutter Dialog Example'),
        ),
        body: Center(
          child: ElevatedButton(
            child: Text('Show Dialog'),
            onPressed: () {
              showDialog(
                context: context,
                barrierDismissible: false,
                builder: (BuildContext context) {
                  return AlertDialog(
                    title: Text('警告'),
                    content: Text('这是一个警告对话框'),
                    actions: [
                      TextButton(
                        child: Text('关闭'),
                        onPressed: () {
                          Navigator.of(context).pop();
                        },
                      ),
                    ],
                  );
                },
              );
            },
          ),
        ),
      ),
    );
  }
}