@cbc_rst/react-native-voice v1.0.0
npm i react-native-voice --save
Table of contents
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
- @asafron
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5 years ago