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Twilio Video (WebRTC) for React Native

Platforms:

  • iOS
  • Android

People using a version < 1.0.1 please move to 1.0.1 since the project changed a lot internally to support the stable TwilioVideo version.

Installation

iOS

CocoaPods

Add node package using yarn/NPM:

yarn add https://github.com/blackuy/react-native-twilio-video-webrtc

Add the plugin dependency to your Podfile, pointing at the path where NPM installed it:

pod 'react-native-twilio-video-webrtc', path: '../node_modules/react-native-twilio-video-webrtc'

You will need to point your React code the path where NPM installed it too. If you didn't do it add this to your Pofile:

pod 'Yoga', path: '../node_modules/react-native/ReactCommon/yoga/Yoga.podspec'
pod 'React', path: '../node_modules/react-native'

Install Pods:

pod install

Permissions

To enable camera usage and microphone usage you will need to add the following entries to your Info.plist file:

<key>NSCameraUsageDescription</key>
<string>Your message to user when the camera is accessed for the first time</string>
<key>NSMicrophoneUsageDescription</key>
<string>Your message to user when the microphone is accessed for the first time</string>

Android

As with iOS, make sure the package is installed:

yarn add https://github.com/blackuy/react-native-twilio-video-webrtc

Then add the library to your settings.gradle file:

include ':react-native-twilio-video-webrtc'
project(':react-native-twilio-video-webrtc').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-twilio-video-webrtc/android')

And include the library in your dependencies in android/app/build.gradle:

dependencies {
    .....
    .....
    .....
    compile project(':react-native-twilio-video-webrtc')
}

Now you're ready to load the package in MainApplication.java. In the imports section, add this:

import com.twiliorn.library.TwilioPackage;

Then update the getPackages() method:

    protected List<ReactPackage> getPackages() {
        return Arrays.<ReactPackage>asList(
            ...
            new TwilioPackage()
        );
    }

Permissions

For most applications, you'll want to add camera and audio permissions to your AndroidManifest.xml file:

    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-feature android:name="android.hardware.camera" android:required="false" />
    <uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />
    <uses-feature android:name="android.hardware.microphone" android:required="false" />

Newer versions of Android have a different permissions model. You will need to use the PermissionsAndroid class in react-native in order to request the CAMERA and RECORD_AUDIO permissions.

Additional Tips

Under default settings, the Android build will fail if the total number of symbols exceeds a certain threshold. If you should encounter this issue when adding this library (e.g., if your build fails with com.android.dex.DexIndexOverflowException), you can turn on jumbo mode by editing your app/build.gradle:

android {
  ...
  dexOptions {
    jumboMode true
  }
}

Docs

You can see the documentation here.

Usage

We have three important components to understand:

import {
  TwilioVideo,
  TwilioVideoLocalView,
  TwilioVideoParticipantView
} from 'react-native-twilio-video-webrtc'
  • TwilioVideo / is responsible for connecting to rooms, events delivery and camera/audio.
  • TwilioVideoLocalView / is responsible local camera feed view
  • TwilioVideoParticipantView / is responsible remote peer's camera feed view

Here you can see a complete example of a simple application that uses almost all the apis:

import React, { Component } from 'react';
import {
  TwilioVideoLocalView,
  TwilioVideoParticipantView,
  TwilioVideo
} from 'react-native-twilio-video-webrtc'

export default class Example extends Component {
  state = {
    isAudioEnabled: true,
    isVideoEnabled: true,
    status: 'disconnected',
    participants: new Map(),
    videoTracks: new Map(),
    roomName: '',
    token: ''
  }

  _onConnectButtonPress = () => {
    this.refs.twilioVideo.connect({ roomName: this.state.roomName, accessToken: this.state.token })
    this.setState({status: 'connecting'})
  }

  _onEndButtonPress = () => {
    this.refs.twilioVideo.disconnect()
  }

  _onMuteButtonPress = () => {
    this.refs.twilioVideo.setLocalAudioEnabled(!this.state.isAudioEnabled)
      .then(isEnabled => this.setState({isAudioEnabled: isEnabled}))
  }

  _onParticipantAddedVideoTrack = ({participant, track}) => {
    console.log("onParticipantAddedVideoTrack: ", participant, track)

    this.setState({videoTracks: { ...this.state.videoTracks, [track.trackId]: { ...participant, ...track }}})
  }

  _onParticipantRemovedVideoTrack = ({participant, track}) => {
    console.log("onParticipantRemovedVideoTrack: ", participant, track)

    const videoTracks = this.state.videoTracks
    videoTracks.delete(track.trackId)

    this.setState({videoTracks: { ...videoTracks }})
  }

  render() {
    return (
      <View style={styles.container}>
        {
          this.state.status === 'disconnected' &&
          <View>
            <Text style={styles.welcome}>
              React Native Twilio Video
            </Text>
            <TextInput
              style={styles.input}
              autoCapitalize='none'
              value={this.state.roomName}
              onChangeText={(text) => this.setState({roomName: text})}>
            </TextInput>
            <TextInput
              style={styles.input}
              autoCapitalize='none'
              value={this.state.token}
              onChangeText={(text) => this.setState({token: text})}>
            </TextInput>
            <Button
              title="Connect"
              style={styles.button}
              onPress={this._onConnectButtonPress}>
            </Button>
          </View>
        }

        {
          (this.state.status === 'connected' || this.state.status === 'connecting') &&
            <View style={styles.callContainer}>
            {
              this.state.status === 'connected' &&
              <View style={styles.remoteGrid}>
                {
                  Object.keys(this.state.videoTracks).map(trackId => {
                    return (
                      <TwilioVideoParticipantView
                        style={styles.remoteVideo}
                        key={trackId}
                        trackIdentifier={{
                          participantIdentity: this.state.videoTracks[trackId].identity,
                          videoTrackId: trackId
                        }}
                      />
                    )
                  })
                }
              </View>
            }
            <View
              style={styles.optionsContainer}>
              <TouchableOpacity
                style={styles.optionButton}
                onPress={this._onEndButtonPress}>
                <Text style={{fontSize: 12}}>End</Text>
              </TouchableOpacity>
              <TouchableOpacity
                style={styles.optionButton}
                onPress={this._onMuteButtonPress}>
                <Text style={{fontSize: 12}}>{ this.state.isAudioEnabled ? "Mute" : "Unmute" }</Text>
              </TouchableOpacity>
              <TouchableOpacity
                style={styles.optionButton}
                onPress={this._onFlipButtonPress}>
                <Text style={{fontSize: 12}}>Flip</Text>
              </TouchableOpacity>
              <TwilioVideoLocalView
                enabled={true}
                style={styles.localVideo}
              />
            </View>
          </View>
        }

        <TwilioVideo
          ref="twilioVideo"
          onRoomDidConnect={ this._onRoomDidConnect }
          onRoomDidDisconnect={ this._onRoomDidDisconnect }
          onRoomDidFailToConnect= { this._onRoomDidFailToConnect }
          onParticipantAddedVideoTrack={ this._onParticipantAddedVideoTrack }
          onParticipantRemovedVideoTrack= { this.onParticipantRemovedVideoTrack }
        />
      </View>
    );
  }
}

AppRegistry.registerComponent('Example', () => Example);

Run the Example Application

To run the example application:

  • Move to the Example directory: cd Example
  • Install node dependencies: yarn install
  • Install objective-c dependencies: cd ios && pod install
  • Open the xcworkspace and run the app: open Example.xcworkspace

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