npm i react-native-voice --save

Table of contents

• Linking
  • Manually Link Android
  • Manually Link iOS
• Usage
  • Example
• API
• Events
• Permissions
  • Android
  • iOS
• Contibutors

react-native link react-native-voice

Manually Link Android

• In android/setting.gradle

...
include ':react-native-voice', ':app'
project(':react-native-voice').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-voice/android')

• In android/app/build.gradle

...
dependencies {
    ...
    compile project(':react-native-voice')
}

• In MainApplication.java

import android.app.Application;
import com.facebook.react.ReactApplication;
import com.facebook.react.ReactPackage;
...
import com.wenkesj.voice.VoicePackage; // <------ Add this!
...

public class MainActivity extends Activity implements ReactApplication {
...
    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
        new MainReactPackage(),
        new VoicePackage() // <------ Add this!
        );
    }
}

Manually Link iOS

• Drag the Voice.xcodeproj from the react-native-voice/ios folder to the Libraries group on Xcode in your poject. Manual linking

• Click on your main project file (the one that represents the .xcodeproj) select Build Phases and drag the static library, lib.Voice.a, from the Libraries/Voice.xcodeproj/Products folder to Link Binary With Libraries

Example

import Voice from 'react-native-voice';
import React, {Component} from 'react';

class VoiceTest extends Component {
  constructor(props) {
    Voice.onSpeechStart = this.onSpeechStartHandler.bind(this);
    Voice.onSpeechEnd = this.onSpeechEndHandler.bind(this);
    Voice.onSpeechResults = this.onSpeechResultsHandler.bind(this);
  }
  onStartButtonPress(e){
    Voice.start('en-US');
  }
  ...
}

All methods now return a new Promise for async/await compatibility.

Method Name | Description | Platform --------------------------- | ----------------------------------------------------------------------------------- | -------- Voice.isAvailable() | Checks whether a speech recognition service is available on the system. | Android, iOS Voice.start(locale) | Starts listening for speech for a specific locale. Returns null if no error occurs. | Android, iOS Voice.stop() | Stops listening for speech. Returns null if no error occurs. | Android, iOS Voice.cancel() | Cancels the speech recognition. Returns null if no error occurs. | Android, iOS Voice.destroy() | Destroys the current SpeechRecognizer instance. Returns null if no error occurs. | Android, iOS Voice.removeAllListeners() | Cleans/nullifies overridden Voice static methods. | Android, iOS Voice.isRecognizing() | Return if the SpeechRecognizer is recognizing. | Android, iOS

Event Name | Description | Event | Platform ----------------------------------- | ------------------------------------------------------ | ----------------------------------------------- | -------- Voice.onSpeechStart(event) | Invoked when .start() is called without error. | { error: false } | Android, iOS Voice.onSpeechRecognized(event) | Invoked when speech is recognized. | { error: false } | Android, iOS Voice.onSpeechEnd(event) | Invoked when SpeechRecognizer stops recognition. | { error: false } | Android, iOS Voice.onSpeechError(event) | Invoked when an error occurs. | { error: Description of error as string } | Android, iOS Voice.onSpeechResults(event) | Invoked when SpeechRecognizer is finished recognizing. | { value: [..., 'Speech recognized'] } | Android, iOS Voice.onSpeechPartialResults(event) | Invoked when any results are computed. | { value: [..., 'Partial speech recognized'] } | Android, iOS Voice.onSpeechVolumeChanged(event) | Invoked when pitch that is recognized changed. | { value: pitch in dB } | Android

Android

While the included VoiceTest app works without explicit permissions checks and requests, it may be necessary to add a permission request for RECORD_AUDIO for some configurations. Since Android M (6.0), user need to grant permission at runtime (and not during app installation). By default, calling the startSpeech method will invoke RECORD AUDIO permission popup to the user. This can be disabled by passing REQUEST_PERMISSIONS_AUTO: true in the options argument.

iOS

Need to include permissions for NSMicrophoneUsageDescription and NSSpeechRecognitionUsageDescription inside Info.plist for iOS. See the included VoiceTest for how to handle these cases.

<dict>
  ...
  <key>NSMicrophoneUsageDescription</key>
  <string>Description of why you require the use of the microphone</string>
  <key>NSSpeechRecognitionUsageDescription</key>
  <string>Description of why you require the use of the speech recognition</string>
  ...
</dict>

Please see the documentation provided by ReactNative for this: PermissionsAndroid

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