codestronaut

import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {

codestronaut

import 'package:bloc/bloc.dart';
import 'package:equatable/equatable.dart';

import '../models/language.dart';

part 'language_event.dart';
part 'language_state.dart';

class LanguageBloc extends Bloc<LanguageEvent, LanguageState> {
  LanguageBloc() : super(const LanguageState()) {

codestronaut

part of 'language_bloc.dart';

abstract class LanguageEvent extends Equatable {
  const LanguageEvent();

  @override
  List<Object> get props => [];
}

class ChangeLanguage extends LanguageEvent {

codestronaut

part of 'language_bloc.dart';

class LanguageState extends Equatable {
  const LanguageState({
    Language? selectedLanguage,
  }) : selectedLanguage = selectedLanguage ?? Language.english;

  final Language selectedLanguage;

  @override

codestronaut

import 'dart:ui';

import '../../../../gen/assets.gen.dart';

enum Language {
  english(
    Locale('en', 'US'),
    Assets.english,
    'English',
  ),

codestronaut

import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import '../../../gen/assets.gen.dart';
import '../../components/components.dart';

class OnboardingScreen extends StatelessWidget {
  const OnboardingScreen({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {

codestronaut

import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {

codestronaut

class SomeController {
  Future login(String email, String password) async {
    final _result = await _repository.login(email, password);
    _result.fold(
      (l) {
        /// Handle left
        /// For example: show dialog or alert
      },
      (r) {
        /// Handle right

codestronaut

/// Create variety of exceptions
/// Enum to help create conditions
enum LoginFailure { invalidCredentials, error }

/// Repository
/// This class can be consumed by controller, provider, or other state management later
class SomeRepository {
  final http.Client _client;
  
  Future<Either<LoginFailure, bool>> login(String email, String password) async {

codestronaut

class RequestException implements Exception {}
class ServerException implements Exception {}