name: signi_translator description: A Flutter app that translates sign language to text in real-time. version: 1.0.0+1 environment: sdk: ">=3.0.0 <4.0.0" dependencies: flutter: sdk: flutter firebase_core: ^2.15.1 firebase_auth: ^4.9.1 camera: ^0.10.5 google_generative_ai: ^0.1.1 permission_handler: ^10.4.0 provider: ^6.0.5 cupertino_icons: ^1.0.6 dev_dependencies: flutter_test: sdk: flutter flutter_lints: ^2.0.0 flutter: uses-material-design: true assets: - assets/ import 'package:flutter/material.dart'; import 'package:firebase_core/firebase_core.dart'; import 'package:provider/provider.dart'; import 'package:signi_translator/providers/translation_provider.dart'; import 'package:signi_translator/screens/home_screen.dart'; void main() async { WidgetsFlutterBinding.ensureInitialized(); await Firebase.initializeApp(); runApp( ChangeNotifierProvider( create: (context) => TranslationProvider(), child: const MyApp(), ), ); } class MyApp extends StatelessWidget { const MyApp({super.key}); @override Widget build(BuildContext context) { return MaterialApp( title: 'Signi Translator', theme: ThemeData( colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue), useMaterial3: true, ), home: const HomeScreen(), debugShowCheckedModeBanner: false, ); } } import 'package:flutter/material.dart'; import 'package:signi_translator/screens/camera_screen.dart'; import 'package:signi_translator/screens/history_screen.dart'; class HomeScreen extends StatelessWidget { const HomeScreen({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Signi Translator'), actions: [ IconButton( icon: const Icon(Icons.history), onPressed: () { Navigator.push( context, MaterialPageRoute(builder: (context) => const HistoryScreen()), ); }, ), ], ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ const Text( 'Sign Language to Text Translator', style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold), ), const SizedBox(height: 40), ElevatedButton( onPressed: () { Navigator.push( context, MaterialPageRoute(builder: (context) => const CameraScreen()), ); }, child: const Text('Start Translation'), ), ], ), ), ); } } import 'package:flutter/material.dart'; import 'package:camera/camera.dart'; import 'package:permission_handler/permission_handler.dart'; import 'package:signi_translator/widgets/sign_display.dart'; import 'package:signi_translator/widgets/feedback_widget.dart'; class CameraScreen extends StatefulWidget { const CameraScreen({super.key}); @override State createState() => _CameraScreenState(); } class _CameraScreenState extends State { CameraController? _controller; bool _isCameraInitialized = false; @override void initState() { super.initState(); _initCamera(); } Future _initCamera() async { final status = await Permission.camera.request(); if (status.isGranted) { final cameras = await availableCameras(); _controller = CameraController( cameras.first, ResolutionPreset.medium, ); await _controller!.initialize(); if (mounted) { setState(() => _isCameraInitialized = true); } } } @override void dispose() { _controller?.dispose(); super.dispose(); } @override Widget build(BuildContext context) { if (!_isCameraInitialized) { return const Scaffold( body: Center(child: CircularProgressIndicator()), ); } return Scaffold( appBar: AppBar(title: const Text('Camera View')), body: Column( children: [ Expanded( child: CameraPreview(_controller!), ), const SignDisplay(), const FeedbackWidget(), ], ), ); } } import 'package:flutter/material.dart'; import 'package:provider/provider.dart'; import 'package:signi_translator/models/translation.dart'; import 'package:signi_translator/providers/translation_provider.dart'; class HistoryScreen extends StatelessWidget { const HistoryScreen({super.key}); @override Widget build(BuildContext context) { final translations = context.watch().translations; return Scaffold( appBar: AppBar(title: const Text('Translation History')), body: ListView.builder( itemCount: translations.length, itemBuilder: (context, index) { final translation = translations[index]; return ListTile( title: Text(translation.text), subtitle: Text(translation.date.toString()), ); }, ), ); } } import 'package:flutter/material.dart'; class SignDisplay extends StatelessWidget { const SignDisplay({super.key}); @override Widget build(BuildContext context) { return Container( padding: const EdgeInsets.all(16), color: Colors.grey[200], child: const Text( 'Translation will appear here', style: TextStyle(fontSize: 18), ), ); } } import 'package:flutter/material.dart'; class FeedbackWidget extends StatelessWidget { const FeedbackWidget({super.key}); @override Widget build(BuildContext context) { return Container( padding: const EdgeInsets.all(16), color: Colors.blue[100], child: const Text( 'Keep steady for accurate results', style: TextStyle(fontSize: 16), ), ); } } import 'package:firebase_auth/firebase_auth.dart'; class AuthService { final FirebaseAuth _auth = FirebaseAuth.instance; Future signInWithEmailAndPassword( String email, String password, ) async { try { final userCredential = await _auth.signInWithEmailAndPassword( email: email, password: password, ); return userCredential.user; } catch (e) { return null; } } Future registerWithEmailAndPassword( String email, String password, ) async { try { final userCredential = await _auth.createUserWithEmailAndPassword( email: email, password: password, ); return userCredential.user; } catch (e) { return null; } } Future signOut() async { await _auth.signOut(); } User? get currentUser => _auth.currentUser; } import 'package:camera/camera.dart'; class CameraService { Future initializeCamera() async { final cameras = await availableCameras(); final controller = CameraController( cameras.first, ResolutionPreset.medium, ); await controller.initialize(); return controller; } } import 'package:google_generative_ai/google_generative_ai.dart'; class AIService { final String apiKey = 'YOUR_API_KEY'; Future translateSignLanguage(String imagePath) async { final model = GenerativeModel(model: 'gemini-pro-vision', apiKey: apiKey); final prompt = 'Translate this sign language image to text'; final imageBytes = await File(imagePath).readAsBytes(); final content = [ Content.multi([ TextPart(prompt), DataPart('image/jpeg', imageBytes), ]), ]; final response = await model.generateContent(content); return response.text ?? 'Unable to translate'; } } class Translation { final String id; final String text; final DateTime date; Translation({ required this.id, required this.text, required this.date, }); } import 'package:flutter/foundation.dart'; import 'package:signi_translator/models/translation.dart'; class TranslationProvider with ChangeNotifier { final List _translations = []; List get translations => _translations; void addTranslation(Translation translation) { _translations.add(translation); notifyListeners(); } void clearHistory() { _translations.clear(); notifyListeners(); } }