Мое приложение Flutter, использующее Firebase, зависает на экране загрузки после нажатия кнопки ⇐ Android

[Anonymous]

Мое приложение Flutter, использующее Firebase, зависает на экране загрузки после нажатия кнопки.
Код кнопки:

Код: Выделить всё

TextButton(onPressed: (){
_submit(context);
},
child: Text("Sign In")
),

Код: Выделить всё

  void _submit(BuildContext context){
FocusScope.of(context).unfocus();

if(!_formKey.currentState!.validate()){
//Invalid
return;
}
_formKey.currentState!.save();
context.read().signUp(email: _email, username: _username, password: _password);
}

Настроил параметры подключения к Firebase по инструкции.
Есть такое предупреждение:

Код: Выделить всё

Launching lib\main.dart on sdk gphone64 x86 64 in debug mode...
Running Gradle task 'assembleDebug'...
**Warning: SDK processing. This version only understands SDK XML versions up to 3 but an SDK XML file of version 4 was encountered.  This can happen if you use versions of Android Studio and the command-line tools that were released at different times.**
√ Built build\app\outputs\flutter-apk\app-debug.apk

для быстрого воспроизведения:
sign_up_screen.dart

Код: Выделить всё

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:social_network/bloc/auth_cubit.dart';
import 'package:social_network/screens/posts_screen.dart';
import 'package:social_network/screens/sign_in_screen.dart';

class SignUpScreen extends StatefulWidget {

static const String id = "sign up screen";

const SignUpScreen({super.key});

@override
State createState() => _SignUpScreenState();
}

class _SignUpScreenState extends State  {

final _formKey = GlobalKey();
String _email = "";
String _username = "";
String _password = "";

late final FocusNode _passwordFocusNode;
late final FocusNode _usernameFocusNode;

@override
void initState() {
_passwordFocusNode = FocusNode();
_usernameFocusNode = FocusNode();
super.initState();
}

@override
void dispose() {
_passwordFocusNode.dispose();
_usernameFocusNode.dispose();
super.dispose();
}

void _submit(BuildContext context){
FocusScope.of(context).unfocus();

if(!_formKey.currentState!.validate()){
//Invalid
return;
}
_formKey.currentState!.save();
context.read().signUp(email: _email, username: _username, password: _password);
}

@override
Widget build(BuildContext context) {
return Scaffold(
body: BlocConsumer(
listener: (prevState, currState){
if(currState is AuthSignedUp){
Navigator.of(context).pushReplacementNamed(PostsScreen.id);
}
if(currState is AuthFailure){
ScaffoldMessenger.of(context).showSnackBar(

SnackBar(
duration: Duration(seconds: 2),
content: Text(currState.message)));
}
},
builder: (context, state){
if(state is AuthLoading){
return Center(child: CircularProgressIndicator());
}
return SafeArea(
child: Form(
key: _formKey,
child: Padding(
padding: const EdgeInsets.all(15.0),
child: SingleChildScrollView(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Padding(
padding: const EdgeInsets.symmetric(vertical: 18.0),
child: Text("Social Media App", style: Theme.of(context).textTheme.headlineLarge,),
),
SizedBox(height: 15,),
// email
TextFormField(
keyboardType: TextInputType.emailAddress,
decoration: InputDecoration(
enabledBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.black),
),
labelText: "Enter you emaail",
),
textInputAction: TextInputAction.next,
onFieldSubmitted: (_){
FocusScope.of(context).requestFocus(_usernameFocusNode);
},
onSaved: (value){
_email = value!.trim();
},
validator: (value){
if(value!.isEmpty){
return "Please enter your email";
}
return null;
},
),
// username
SizedBox(height: 15,),
TextFormField(
focusNode: _usernameFocusNode,
decoration: InputDecoration(
enabledBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.black),
),
labelText: "Enter you username",
),
textInputAction: TextInputAction.next,
onFieldSubmitted: (_){
FocusScope.of(context).requestFocus(_passwordFocusNode);
},
onSaved: (value){
_username = value!.trim();
},
validator:  (value){
if(value!.isEmpty){
return "Please enter your username";
}
return null;
},
),
// password
SizedBox(height: 15,),
TextFormField(
focusNode: _passwordFocusNode,
decoration: InputDecoration(
enabledBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.black),
),
labelText: "Enter you password",
),
obscureText: true,
textInputAction: TextInputAction.done,
onFieldSubmitted: (_){
_submit(context);
},
onSaved: (value){
_email = value!.trim();
},
validator: (value){
if(value!.isEmpty){
return "Please enter your password";
}
if(value.length < 5){
return "Please enter your password more than 5 characters";
}
return null;
},
),

SizedBox(height: 15,),
TextButton(onPressed: (){
_submit(context);
},
child: Text("Sign Up")
),
TextButton(onPressed: (){
Navigator.of(context).pushReplacementNamed(SignInScreen.id);
},
child: Text("Log In")
//Sign In instead
)
],
),
),
),
)
);
}
),
);
}
}

main.dart

Код: Выделить всё

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:social_network/bloc/auth_cubit.dart';
import 'package:social_network/screens/posts_screen.dart';
import 'package:social_network/screens/sign_in_screen.dart';
import 'package:social_network/screens/sign_up_screen.dart';
import 'package:firebase_core/firebase_core.dart';

Future main()  async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(const MyApp());
}

class MyApp extends StatelessWidget {
const MyApp({super.key});

// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return BlocProvider(
create: (context) => AuthCubit(),
child: MaterialApp(
theme: ThemeData.dark(),
home: SignUpScreen(),
routes: {
SignInScreen.id: (context) => SignInScreen(),
SignUpScreen.id: (context) => SignUpScreen(),
PostsScreen.id: (context) => PostsScreen(),
},
),
);
}
}

Я пытался создать нового пользователя в своем приложении, но экран зависает при загрузке.

Подробнее здесь: https://stackoverflow.com/questions/792 ... ing-button