Flutter pushReplacementNamed 不会替换它，如果来自 AlertDialog，它只会推到顶部

代码如下:

3个文件home、main和screen1

主要:

import 'package:flutter/material.dart';
import 'home.dart';
import 'screen1.dart';

void main() {
  runApp(MaterialApp(
    home: Home(),
    routes:
    {
      '/home' : (context) => Home(),
      '/screen1': (context) => Screen1()
    },
  ));
}

主页:

import 'package:flutter/material.dart';

class Home extends StatefulWidget {
  const Home({Key? key}) : super(key: key);

  @override
  State<Home> createState() => _HomeState();
}

class _HomeState extends State<Home> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: ElevatedButton(
          onPressed: (){Navigator.pushReplacementNamed(context, '/screen1');},
          child: Text('screen 1'),
        ),
      ),
    );
  }
}

屏幕1:

import 'package:flutter/material.dart';

Widget homeDialog(BuildContext context){
  return AlertDialog(
    title: const Text('Do you want to exit'),
    actions: [
      ElevatedButton(
        child: const Text('No'),
        onPressed: (){
          Navigator.pop(context);
        },
      ),
      ElevatedButton(
        child: const Text('Yes'),
        onPressed: (){
          Navigator.pushReplacementNamed(context, '/home');
        },
      ),
    ],
  );
}

class Screen1 extends StatefulWidget {
const Screen1({Key? key}) : super(key: key);

@override
State<Screen1> createState() => _Screen1State();
}

class _Screen1State extends State<Screen1> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        automaticallyImplyLeading:  false,
       title: Text('screen 1'),
      leading: GestureDetector(
      onTap: (){showDialog(context: context, builder: homeDialog);},
      child: Icon(Icons.home)
      ),
    ),
   );
}
}