continuous_speech_to_text 0.0.2

A robust Flutter plugin for continuous, uninterrupted speech-to-text recognition on Android. Bypasses standard timeouts and annoying beep sounds.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:continuous_speech_to_text/continuous_speech_to_text.dart';

void main() {
  runApp(const MyApp());
}

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

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  final _continuousSpeechToText = ContinuousSpeechToText();
  String _recognizedText = '';
  bool _isListening = false;
  String _errorMessage = '';
  
  // List of some common locales
  final List<Map<String, String>> _locales = [
    {'name': 'English (India)', 'code': 'en-IN'},
    {'name': 'Hindi (India)', 'code': 'hi-IN'},
    {'name': 'Bengali (India)', 'code': 'bn-IN'},
    {'name': 'Gujarati (India)', 'code': 'gu-IN'},
    {'name': 'Kannada (India)', 'code': 'kn-IN'},
    {'name': 'Malayalam (India)', 'code': 'ml-IN'},
    {'name': 'Marathi (India)', 'code': 'mr-IN'},
    {'name': 'Tamil (India)', 'code': 'ta-IN'},
    {'name': 'Telugu (India)', 'code': 'te-IN'},
    {'name': 'Punjabi (India)', 'code': 'pa-IN'},
    {'name': 'Urdu (India)', 'code': 'ur-IN'},
    {'name': 'Odia (India)', 'code': 'or-IN'},
    {'name': 'Assamese (India)', 'code': 'as-IN'},
    {'name': 'English (US)', 'code': 'en-US'},
    {'name': 'Spanish (Spain)', 'code': 'es-ES'},
    {'name': 'French (France)', 'code': 'fr-FR'},
    {'name': 'German (Germany)', 'code': 'de-DE'},
  ];
  String _selectedLocale = 'en-IN';

  @override
  void initState() {
    super.initState();
    _continuousSpeechToText.onSpeechEvent.listen((eventMap) {
      final event = eventMap['event'];
      final data = eventMap['data'];

      setState(() {
        if (event == 'partialResult' || event == 'result') {
          _recognizedText = data as String;
          _errorMessage = '';
        } else if (event == 'error') {
          _errorMessage = data as String;
          _isListening = false;
        } else if (event == 'readyForSpeech') {
          _isListening = true;
          _errorMessage = '';
        } else if (event == 'stopped') {
          _isListening = false;
        }
      });
    });
  }

  void _toggleListening() {
    if (_isListening) {
      _continuousSpeechToText.stopListening();
    } else {
      setState(() {
        _recognizedText = '';
        _errorMessage = '';
      });
      _continuousSpeechToText.startListening(localeId: _selectedLocale);
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(title: const Text('Continuous Speech to Text')),
        body: Padding(
          padding: const EdgeInsets.all(24.0),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  const Text('Language:', style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold)),
                  DropdownButton<String>(
                    value: _selectedLocale,
                    onChanged: _isListening
                        ? null
                        : (String? newValue) {
                            if (newValue != null) {
                              setState(() {
                                _selectedLocale = newValue;
                              });
                            }
                          },
                    items: _locales.map<DropdownMenuItem<String>>((Map<String, String> locale) {
                      return DropdownMenuItem<String>(
                        value: locale['code'],
                        child: Text(locale['name']!),
                      );
                    }).toList(),
                  ),
                ],
              ),
              const SizedBox(height: 16),
              if (_errorMessage.isNotEmpty)
                Container(
                  padding: const EdgeInsets.all(12),
                  decoration: BoxDecoration(
                    color: Colors.redAccent,
                    borderRadius: BorderRadius.circular(8),
                  ),
                  margin: const EdgeInsets.only(bottom: 16),
                  child: Text(_errorMessage, style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold)),
                ),
              Expanded(
                child: Container(
                  padding: const EdgeInsets.all(16),
                  decoration: BoxDecoration(
                    color: Colors.grey[200],
                    borderRadius: BorderRadius.circular(16),
                  ),
                  child: SingleChildScrollView(
                    child: Text(
                      _recognizedText.isEmpty ? 'Tap the mic to start speaking...' : _recognizedText,
                      style: const TextStyle(fontSize: 20, height: 1.5),
                    ),
                  ),
                ),
              ),
              const SizedBox(height: 30),
              Center(
                child: SizedBox(
                  width: 80,
                  height: 80,
                  child: FloatingActionButton(
                    onPressed: _toggleListening,
                    backgroundColor: _isListening ? Colors.red : Colors.blueAccent,
                    shape: const CircleBorder(),
                    child: Icon(_isListening ? Icons.stop_rounded : Icons.mic_rounded, size: 36, color: Colors.white),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}