我的 signup.dart 文件：
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/material.dart';
class SignUp extends StatefulWidget {
@override
_SignUpState createState() => _SignUpState();
}
class _SignUpState extends State<SignUp> {
final FirebaseAuth firebaseAuth = FirebaseAuth.instance;
final _formKey = GlobalKey<FormState>();
TextEditingController _emailTextController = TextEditingController();
TextEditingController _passwordTextController = TextEditingController();
TextEditingController _nameTextController = TextEditingController();
TextEditingController _confirmPasswordTextController =
TextEditingController();
String gender;
String groupValue = "Erkek";
bool loading = false;
@override
Widget build(BuildContext context) {
return Scaffold(
body: Stack(
children: <Widget>[
Image.asset(
'images/backg.jpg',
fit: BoxFit.fill,
width: double.infinity,
height: double.infinity,
),
Container(
color: Colors.black.withOpacity(0.4),
width: double.infinity,
height: double.infinity,
),
Padding(
padding: const EdgeInsets.only(top: 200.0),
child: Center(
child: Form(
key: _formKey,
child: ListView(
children: <Widget>[
Padding(
padding:
const EdgeInsets.fromLTRB(14.0, 8.0, 14.0, 8.0),
child: Material(
borderRadius: BorderRadius.circular(20.0),
color: Colors.white.withOpacity(0.4),
elevation: 0.0,
child: Padding(
padding: const EdgeInsets.only(left: 12.0),
child: ListTile(
title: TextFormField(
controller: _passwordTextController,
decoration: InputDecoration(
hintText: "Ad Soyad",
icon: Icon(Icons.person),
border: InputBorder.none
),
// ignore: missing_return
validator: (value) {
if (value.isEmpty) {
return "İsim boşluğu doldurulmalıdır.";
}
return null;
},
// ignore: missing_return
),
trailing: Icon(Icons.remove_red_eye),
),
),
),
),
Padding(
padding:
const EdgeInsets.fromLTRB(14.0, 8.0, 14.0, 8.0),
child: Material(
borderRadius: BorderRadius.circular(20.0),
color: Colors.white.withOpacity(0.4),
elevation: 0.0,
child: Padding(
padding: const EdgeInsets.only(left: 12.0),
child: TextFormField(
controller: _emailTextController,
decoration: InputDecoration(
hintText: "Email",
icon: Icon(Icons.email),
border: InputBorder.none
),
// ignore: missing_return
validator: (value) {
if (value.isEmpty) {
Pattern pattern =
r'^(([^<>()[]\.,;:\s@"]+(.[^<>()[]\.,;:\s@"]+)*)|(".+"))@(([[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}])|(([a-zA-Z-0-9]+.)+[a-zA-Z]{2,}))$';
RegExp regex = new RegExp(pattern);
if (!regex.hasMatch(value))
return "Lütfen geçerli bir mail adresi giriniz.";
else
return null;
}
}),
),
),
),
Padding(
padding: const EdgeInsets.fromLTRB(14.0, 8.0, 14.0, 8.0),
child: new Container(
color: Colors.white.withOpacity(0.4),
child: Row(
children: <Widget>[
Expanded(
child: ListTile(
title: Text(
"Erkek",
textAlign: TextAlign.end ,
style: TextStyle(color: Colors.white),
),
trailing: Radio(value: "Erkek", groupValue: groupValue, onChanged: (e)=>valueChanged(e)),
)),
Expanded(
child: ListTile(
title: Text(
"Kadın",
textAlign: TextAlign.end ,
style: TextStyle(color: Colors.white),
),
trailing: Radio(value: "Kadın", groupValue: groupValue, onChanged: (e)=>valueChanged(e)),
)),
],
),
),
),
Padding(
padding:
const EdgeInsets.fromLTRB(14.0, 8.0, 14.0, 8.0),
child: Material(
borderRadius: BorderRadius.circular(20.0),
color: Colors.white.withOpacity(0.4),
elevation: 0.0,
child: Padding(
padding: const EdgeInsets.only(left: 12.0),
child: ListTile(
title: TextFormField(
controller: _passwordTextController,
obscureText: true,
decoration: InputDecoration(
hintText: "Şifre",
icon: Icon(Icons.lock_outline),
border: InputBorder.none
),
// ignore: missing_return
validator: (value) {
if (value.isEmpty) {
return "Şifre boşluğu doldurulmalıdır.";
} else if (value.length < 6) {
return "Şifre 6 haneden uzun olmalı!";
}
return null;
},
// ignore: missing_return
),
trailing : IconButton(icon: Icon(Icons.remove_red_eye), onPressed: (){})
),
),
),
),
Padding(
padding:
const EdgeInsets.fromLTRB(14.0, 8.0, 14.0, 8.0),
child: Material(
borderRadius: BorderRadius.circular(20.0),
color: Colors.white.withOpacity(0.4),
elevation: 0.0,
child: Padding(
padding: const EdgeInsets.only(left: 12.0),
child: ListTile(
title : TextFormField(
controller: _confirmPasswordTextController,
obscureText: true,
decoration: InputDecoration(
hintText: "Şifreyi Doğrula",
icon: Icon(Icons.lock_outline),
border: InputBorder.none
),
// ignore: missing_return
validator: (value) {
if (value.isEmpty) {
return "Şifre boşluğu doldurulmalıdır.";
} else if (value.length < 6) {
return "Şifre 6 haneden uzun olmalı!";
}else if (_passwordTextController != value){
return "Şifreler uyuşmuyor.";
}
return null;
},
// ignore: missing_return
),
trailing : IconButton(icon: Icon(Icons.remove_red_eye), onPressed: (){}),
),
),
),
),
Padding(
padding:
const EdgeInsets.fromLTRB(12.0, 8.0, 12.0, 8.0),
child: Material(
borderRadius: BorderRadius.circular(20.0),
color: Colors.red.withOpacity(0.8),
elevation: 0.0,
child: MaterialButton(
onPressed: () {
validateForm();
},
minWidth: MediaQuery.of(context).size.width,
child: Text(
"Kayıt Ol",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 15.0),
),
)),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: InkWell(
onTap: () {
Navigator.pop(context);
},
child: Text(
"Giriş Yap",
textAlign: TextAlign.center,
style: TextStyle(color: Colors.red),
))),
],
)),
),
),
Visibility(
visible: loading ?? true,
child: Center(
child: Container(
alignment: Alignment.center,
color: Colors.white.withOpacity(0.9),
child: CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation<Color>(Colors.red),
),
),
))
],
),
);
}
valueChanged(e) {
setState(() {
if (e == "Erkek") {
groupValue = e;
gender = e;
} else if (e == "Kadın") {
groupValue = e;
gender = e;
}
});
}
void validateForm() async{
FormState formState = _formKey.currentState;
if(formState.validate()){
User user = await firebaseAuth.currentUser;
if(user == null){
firebaseAuth.createUserWithEmailAndPassword(email: _emailTextController, password: _passwordTextController).then((user) => {
});
}
}
}
}
我的显示错误。
正在执行热重载... 正在将文件同步到设备 sdk gphone x86... lib/pages/signup.dart:276:60：错误：无法将参数类型“TextEditingController”分配给参数类型“String”。
'TextEditingController' 来自 'package:flutter/src/widgets/editable_text.dart' ('/C:/src/flutter/packages/flutter/lib/src/widgets/editable_text.dart')。 firebaseAuth.createUserWithEmailAndPassword(email: _emailTextController, password: _passwordTextController).then((user) => { ^ lib/pages/signup.dart:276:92：错误：无法将参数类型“TextEditingController”分配给参数类型“String”。
'TextEditingController' 来自 'package:flutter/src/widgets/editable_text.dart' ('/C:/src/flutter/packages/flutter/lib/src/widgets/editable_text.dart')。 firebaseAuth.createUserWithEmailAndPassword(email: _emailTextController, password: _passwordTextController).then((user) => { ^ ==========新错误=================
void validateForm() 异步 { FormState formState = _formKey.currentState; 如果（formState.validate（））{ 用户用户 = 等待 firebaseAuth.currentUser; 如果（用户==空）{ 火力验证 .createUserWithEmailAndPassword( 电子邮件：_emailTextController.text， 密码：_passwordTextController.text) .then((用户) => {
_userServices.createUser(
{
"username": _nameTextController.text,
"email": user.email
}
)
});
}
}
} }
答案 0 :(得分：0)
使用 _emailTextController.text 而不是仅使用 _emailTextController。