riva_flutter 1.0.2

The library shows device-specific speech recognition and speech-to-text conversion capabilities with Riva technology.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:lottie/lottie.dart';
import 'package:provider/provider.dart';
import 'package:riva_flutter/riva_shelf.dart';

import 'audio_model.dart';

void main() async {
  await FRivaManager.initSdk(host: 'riva.ai.ftech.ai', languageTTS: LanguageSupport.english);
  runApp(MultiProvider(
    providers: [ChangeNotifierProvider(create: (context) => AudioModel())],
    child: const MyApp(),
  ));
}

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Riva Example',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(),
    );
  }
}

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

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Consumer<AudioModel>(
              builder: (BuildContext context, AudioModel value, Widget? child) {
                return Stack(
                  alignment: Alignment.bottomRight,
                  children: [
                    Container(
                        decoration: BoxDecoration(
                            borderRadius: BorderRadius.circular(8), color: Colors.lightBlueAccent.withAlpha(100)),
                        padding: const EdgeInsets.symmetric(vertical: 8, horizontal: 12),
                        margin: const EdgeInsets.all(16),
                        height: 150,
                        width: double.infinity,
                        child: SingleChildScrollView(child: Text(value.resultRecord))),
                    Padding(
                      padding: const EdgeInsets.all(8),
                      child: IconButton(onPressed: _startSpeak, icon: const Icon(Icons.volume_up_rounded)),
                    )
                  ],
                );
              },
            ),
            Consumer<AudioModel>(
              builder: (BuildContext context, AudioModel value, Widget? child) {
                return Center(
                  child: value.isRecording
                      ? Lottie.asset('assets/lottie/recording.json', width: 100, height: 70)
                      : TextButton(
                          onPressed: _startRecord,
                          style: ButtonStyle(
                            shape: MaterialStatePropertyAll(RoundedRectangleBorder(
                                borderRadius: BorderRadius.circular(8),
                                side: const BorderSide(color: Colors.lightBlue))),
                            minimumSize: const MaterialStatePropertyAll(Size(double.minPositive, 100)),
                            backgroundColor: const MaterialStatePropertyAll(Colors.lightBlue),
                          ),
                          child: const Text('Start record', style: TextStyle(color: Colors.white)),
                        ),
                );
              },
            ),
          ],
        ),
      ),
    );
  }

  void _startRecord() {
    FRivaManager.startSTT(
        onStart: () {
          context.read<AudioModel>().isRecording = true;
        },
        onSpeeching: (textSpeeching) {},
        onSuccess: (textRecognized) {
          context.read<AudioModel>().resultRecord = textRecognized;
          context.read<AudioModel>().isRecording = false;
        },
        onError: (error) {
          context.read<AudioModel>().resultRecord = error;
          context.read<AudioModel>().isRecording = false;
        },
        onComplete: () {
          context.read<AudioModel>().isRecording = false;
        });
  }

  bool _toggleSpeak = true;
  void _startSpeak() {
    var textOrigin = context.read<AudioModel>().resultRecord;
    if(_toggleSpeak){
      FRivaManager.startTTS(textOrigin: textOrigin);
    }else{
      FRivaManager.stopTTS();
    }
    _toggleSpeak = !_toggleSpeak;
  }
}