• 1000 Это код, который я использовал для ведения журнала, и я уже использовал общие настройки, но все еще не работал. Что я должен добавить в код или изменить? Должен ли я добавить что-то на домашнюю страницу ()? Я забыл упомянуть, что моя первая страница, когда я открывал приложение, это main.dart, а вторая - LoginScreen (где вы можете выбрать, с какой учетной записью вы входите, например: facebook, google, email)
import 'package:flutter/material.dart';
import 'SignUp.dart';
import 'brazierContainer.dart';
import 'package:google_fonts/google_fonts.dart';
import 'LoginScreen.dart';
import 'HomePage.dart';
import 'auth.dart';
import 'package:shared_preferences/shared_preferences.dart';
Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
SharedPreferences prefs = await SharedPreferences.getInstance();
var email = prefs.getString('email');
print(email);
runApp(MaterialApp(home: email == null ? LoginPage() : Homepage()));
}
class LoginPage extends StatefulWidget {
LoginPage({Key key, this.title}) : super(key: key);
final String title;
@override
_LoginPageState createState() => _LoginPageState();
}
class _LoginPageState extends State<LoginPage> {
final _formKey = GlobalKey<FormState>();
String email = '';
String password = '';
String error = '';
bool loading = false;
final Authentication authentication = Authentication();
@override
Widget build(BuildContext context) {
return loading
? Homepage()
: Scaffold(
resizeToAvoidBottomInset: false,
resizeToAvoidBottomPadding: false,
body: Container(
height: 900.0,
width: 500.0,
child: Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.only(top: 50.0),
child: Row(
children: <Widget>[
IconButton(
icon: Icon(Icons.arrow_back_ios, color: Colors.blue),
onPressed: () {
Navigator.pushReplacement(
context,
MaterialPageRoute(
builder: (context) => LoginScreen()));
},
)
],
),
),
Padding(
padding: const EdgeInsets.only(top: 40.0),
child: RichText(
text: TextSpan(
text: 'Tariffo',
style: TextStyle(
color: Colors.blue,
fontFamily: 'SignPainter',
fontSize: 60),
),
),
),
SizedBox(
height: 400.0,
child: Form(
key: _formKey,
child: Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.only(
left: 40.0, right: 40.0, top: 40.0),
child: TextFormField(
validator: (val) =>
val.isEmpty ? 'enter email' : null,
onChanged: (val) {
setState(() => email = val);
},
style: TextStyle(color: Colors.black),
decoration: InputDecoration(
hintText: 'enter email',
hintStyle: TextStyle(
fontFamily: 'Antra',
fontSize: 12.0,
color: Colors.black)),
),
),
Padding(
padding: const EdgeInsets.only(
left: 40.0, right: 40.0, top: 40.0),
child: TextFormField(
validator: (val) => val.length < 8
? 'enter password > 8 digits'
: null,
onChanged: (val) {
setState(() => password = val);
},
style: TextStyle(color: Colors.black),
decoration: InputDecoration(
hintText: 'enter password',
hintStyle: TextStyle(
fontFamily: 'Antra',
fontSize: 12.0,
color: Colors.black)),
obscureText: true,
),
),
SizedBox(height: 50),
Padding(
padding: const EdgeInsets.only(top: 40.0),
child: MaterialButton(
height: 50,
minWidth: 300,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10)),
color: Colors.blue,
onPressed: () async {
SharedPreferences prefs =
await SharedPreferences.getInstance();
prefs.setString(
'email', 'useremail@gmail.com');
if (_formKey.currentState.validate()) {
setState(() => loading = true);
dynamic result = await authentication
.signUpWithEmailAndPassword(
email, password);
if (result == null) {
setState(() => error =
'Sorry,These credentials will not work out');
loading = false;
}
}
},
child: Text(
'Sign in',
style: TextStyle(
fontFamily: 'Antra', color: Colors.white),
),
),
),
Container(
padding: EdgeInsets.symmetric(
vertical: 10, horizontal: 10),
alignment: Alignment.centerRight,
child: Text('Forgot Password ?',
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.w500)),
),
],
),
)),
_createAccountLabel(),
],
),
),
);
}
Widget _createAccountLabel() {
return InkWell(
onTap: () {
Navigator.push(
context, MaterialPageRoute(builder: (context) => SignupPage()));
},
child: Container(
margin: EdgeInsets.symmetric(vertical: 20),
padding: EdgeInsets.all(15),
alignment: Alignment.bottomCenter,
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
"Don't you have an account ?",
style: TextStyle(fontSize: 13, fontWeight: FontWeight.w600),
),
SizedBox(
width: 10,
),
Text(
'Register',
style: TextStyle(
color: Colors.blue,
fontSize: 13,
fontWeight: FontWeight.w600),
),
],
),
),
);
}
}
И мой main.dart
import 'package:flutter/material.dart';
import 'dart:async';
import 'LoginScreen.dart';
void main() => runApp(new MaterialApp(
home: new MyApp(),
));
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => new _MyAppState();
}
class _MyAppState extends State<MyApp> {
@override
void initState() {
super.initState();
new Future.delayed(
const Duration(seconds: 3),
() => Navigator.push(
context,
MaterialPageRoute(builder: (context) => LoginScreen()),
));
}
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Welcome to Flutter',
home: Scaffold(
backgroundColor: Colors.blue,
body: Center(
child: Text(
"Tariffo",
style: TextStyle(
color: Colors.white, fontFamily: 'SignPainter', fontSize: 60),
),
)),
);
}
}