React-Native WebRTC: Comprehensive Guide to Integration and Features

1   node -v
2   npm -v
3

1   npm install -g react-native-cli
2

1   react-native init ReactNativeWebRTCApp
2   cd ReactNativeWebRTCApp
3

1   npm install react-native-webrtc
2

1   <key>NSCameraUsageDescription</key>
2   <string>We need access to your camera for video calls</string>
3   <key>NSMicrophoneUsageDescription</key>
4   <string>We need access to your microphone for audio calls</string>
5 

1   <uses-permission android:name="android.permission.CAMERA"/>
2   <uses-permission android:name="android.permission.RECORD_AUDIO"/>
3

1   import React, { useEffect, useRef } from 'react';
2   import { View, Button } from 'react-native';
3   import { mediaDevices, RTCPeerConnection, RTCView } from 'react-native-webrtc';
4
5   const App = () => {
6     const localStream = useRef(null);
7
8     useEffect(() => {
9       const getMedia = async () => {
10         const stream = await mediaDevices.getUserMedia({
11           video: true,
12           audio: true,
13         });
14         localStream.current = stream;
15       };
16
17       getMedia();
18     }, []);
19
20     return (
21       <View style={{ flex: 1 }}>
22         <RTCView streamURL={localStream.current?.toURL()} style={{ flex: 1 }} />
23         <Button title="Start Call" onPress={startCall} />
24       </View>
25     );
26   };
27
28   const startCall = () => {
29     // Implement WebRTC peer connection setup here
30   };
31
32   export default App;
33

1   const configuration = { iceServers: [{ urls: 'stun:stun.l.google.com:19302' }] };
2   const peerConnection = new RTCPeerConnection(configuration);
3
4   peerConnection.onicecandidate = (event) => {
5     if (event.candidate) {
6       // Send the candidate to the remote peer
7     }
8   };
9
10   peerConnection.onaddstream = (event) => {
11     // Add the remote stream to the RTCView
12   };
13
14   localStream.current.getTracks().forEach(track => {
15     peerConnection.addTrack(track, localStream.current);
16   });
17

1   peerConnection.addStream(localStream.current);
2
3   // Create an offer and set local description
4   const offer = await peerConnection.createOffer();
5   await peerConnection.setLocalDescription(offer);
6
7   // Send the offer to the remote peer
8

1   peerConnection.oniceconnectionstatechange = () => {
2     if (peerConnection.iceConnectionState === 'disconnected') {
3       // Handle disconnection
4     }
5   };
6
7   peerConnection.onerror = (error) => {
8     console.error('WebRTC Error:', error);
9   };
10

1   const dataChannel = peerConnection.createDataChannel('chat');
2
3   dataChannel.onmessage = (event) => {
4     console.log('Received message:', event.data);
5   };
6
7   dataChannel.onopen = () => {
8     dataChannel.send('Hello, world!');
9   };
10

1   const peerConnections = {};
2
3   const createPeerConnection = (id) => {
4     const pc = new RTCPeerConnection(configuration);
5     pc.onicecandidate = (event) => {
6       if (event.candidate) {
7         // Send the candidate to the remote peer
8       }
9     };
10     pc.onaddstream = (event) => {
11       // Add the remote stream to the RTCView
12     };
13     peerConnections[id] = pc;
14     return pc;
15   };
16

1   const constraints = {
2     video: {
3       width: { ideal: 1280 },
4       height: { ideal: 720 },
5       frameRate: { ideal: 30 },
6     },
7     audio: true,
8   };
9
10   const stream = await mediaDevices.getUserMedia(constraints);
11