The SDK for React Native is packaged from the TRTC SDK for iOS and Android. It supports only audio calls currently, and is expected to enable video calls as well in the future.

• trtc_cloud: main TRTC API classes
• tx_audio_effect_manager: music and audio effect APIs
• tx_device_manager: device management class
• trtc_cloud_def: definitions of key TRTC types
• trtc_cloud_listener: TRTC event callback APIs

1. Initialization

   // Create a `TRTCCloud` singleton
   const trtcCloud = TRTCCloud.sharedInstance();
   // Get the device management module
   const txDeviceManager = trtcCloud.getDeviceManager();
   // Get the audio effect management class
   const txAudioManager = trtcCloud.getAudioEffectManager();
   

2. Room entry/exit

   // Enter a room
   const params = new TRTCParams({
        sdkAppId: SDKAPPID,//Application ID
        userId,//User ID
        userSig,//User signature
        roomId: 2366,//Room ID
      });
      trtcCloud.enterRoom(params, TRTCCloudDef.TRTC_APP_SCENE_VIDEOCALL);
   // Leave a room
   trtcCloud.exitRoom();
   

3. Listener registration ``` // Register a listener trtcCloud.registerListener(onRtcListener);

function onRtcListener(type: TRTCCloudListener, params: any) { // Callback for room entry if (type === TRTCCloudListener.onEnterRoom) { if (params.result > 0) { // Entered room successfully } } // Callback for the entry of a remote user if (type === TRTCCloudListener.onRemoteUserEnterRoom) { //params.userId: ID of the remote user } //Whether a remote user’s mic is turned on if (type === TRTCCloudListener.onUserAudioAvailable) { //param.userId: ID of the remote user //param.visible: true indicates that the user’s mic is turned on. } } // Unregister a listener trtcCloud.unRegisterListener(onRtcListener);

4. Playing local video

<TXVideoView.LocalView />

5. Playing the video of a remote user

<TXVideoView.RemoteView userId={remoteUserId} streamType={TRTCCloudDef.TRTC_VIDEO_STREAM_TYPE_BIG} />

6. Playing the Screen sharing of a remote user

<TXVideoView.RemoteView userId={remoteUserId} streamType={TRTCCloudDef.TRTC_VIDEO_STREAM_TYPE_SUB} />

### Android development environment
You can refer to React Native’s [official document](https://reactnative.dev/docs/environment-setup) to set up a development environment for Android.
Note: You must debug your project on a real device.
#### Configuring app permissions
Configure application permissions in `AndroidManifest.xml`. The TRTC SDK requires the following permissions:

// You need to request audio and video permissions manually for Android.
if (Platform.OS === 'android') {
  await PermissionsAndroid.requestMultiple([
    PermissionsAndroid.PERMISSIONS.RECORD_AUDIO, //For audio calls
    // PermissionsAndroid.PERMISSIONS.CAMERA, // For video calls
  ]);
}

npx react-native start

npx react-native run-android

<key>NSCameraUsageDescription</key>
<string>Authorize the camera permission to make a normal video call</string>
<key>NSMicrophoneUsageDescription</key>
<string>Authorize microphone permissions to make normal voice calls</string>