react-native-voice2text/lib/module/index.js

React Native module for Android that converts speech to text using native speech recognition

"use strict";

import { NativeModules, NativeEventEmitter, PermissionsAndroid, Platform } from 'react-native';
const {
  Voice2Text
} = NativeModules;
const eventEmitter = new NativeEventEmitter(Voice2Text);
const Voice2TextModule = {
  async checkPermissions() {
    if (Platform.OS === 'android') {
      return PermissionsAndroid.check(PermissionsAndroid.PERMISSIONS.RECORD_AUDIO);
    }
    // iOS permissions handled by native side or not required here
    return true;
  },
  async requestPermissions() {
    if (Platform.OS === 'android') {
      const result = await PermissionsAndroid.request(PermissionsAndroid.PERMISSIONS.RECORD_AUDIO);
      return result === PermissionsAndroid.RESULTS.GRANTED;
    }
    return true;
  },
  async startListening(languageCode) {
    const hasPermission = await this.checkPermissions();
    if (!hasPermission) {
      const granted = await this.requestPermissions();
      if (!granted) throw new Error('Permission not granted');
    }
    return Voice2Text.startListening(languageCode ?? null);
  },
  stopListening() {
    return Voice2Text.stopListening();
  },
  cancelListening() {
    return Voice2Text.cancelListening();
  },
  destroy() {
    return Voice2Text.destroy();
  },
  onResults(callback) {
    const subscription = eventEmitter.addListener('onSpeechResults', callback);
    return () => subscription.remove();
  },
  onPartialResults(callback) {
    const subscription = eventEmitter.addListener('onSpeechPartialResults', callback);
    return () => subscription.remove();
  },
  onError(callback) {
    const subscription = eventEmitter.addListener('onSpeechError', callback);
    return () => subscription.remove();
  },
  onSpeechStart(callback) {
    const subscription = eventEmitter.addListener('onSpeechStart', callback);
    return () => subscription.remove();
  },
  onSpeechBegin(callback) {
    const subscription = eventEmitter.addListener('onSpeechBegin', callback);
    return () => subscription.remove();
  },
  onSpeechEnd(callback) {
    const subscription = eventEmitter.addListener('onSpeechEnd', callback);
    return () => subscription.remove();
  },
  onVolumeChanged(callback) {
    const subscription = eventEmitter.addListener('onSpeechVolumeChanged', callback);
    return () => subscription.remove();
  }
};
export default Voice2TextModule;
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