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如何在flutter中隐藏/显示密码

作为颤振的初学者,我在颤振中制作了第一个登录表单,但唯一的问题是我不知道如何在颤振中隐藏/显示密码我已经在互联网上复制了隐藏/显示密码代码,但我多次收到错误我不知道如何执行代码的正确方法请帮助我,这是下面给出的我的代码。

import 'package:flutter/material.dart';

    class LogInForm extends StatelessWidget {
      const LogInForm({Key? key}) : super(key: key);
      
    
      @override
      
      Widget build(BuildContext context) {
        return Scaffold(
            body: Container(
          height: MediaQuery.of(context).size.height,
          width: double.infinity,
          child: Column(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: <Widget>[
              Expanded(
                child: Column(
                    mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                    children: <Widget>[
                      Column(
                        children: <Widget>[
                          Text(
                            "Welcome",
                            style: TextStyle(
                                fontSize: 50, fontWeight: FontWeight.bold),
                          ),
                          SizedBox(
                            height: 30,
                          ),
                          Text(
                            "Login to your account",
                            style: TextStyle(fontSize: 25, color: Colors.grey[700]),
                          )
                        ],
                      ),
                      
                      Container(
                          margin: EdgeInsets.fromLTRB(200, 100, 200, 0),
                          child: TextField(
                            decoration: InputDecoration(
                                border: …
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flutter flutter-layout

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