Flutter - webRTC Video Call signalling doesn't work

问题

I am able to implement voice and video call using agora.io library which is available at https://www.agora.io/ && https://github.com/AgoraIO/Flutter-SDK

how ever the process for starting a call is both user has to join a particular channel name defined by the user manually or automatically. which is not the practical way. Is there any way to create a separate signalling system (may be using, nodejs socket, firebase or one-signal notification? )

What's the simultaneous/parallel way to be used along side that? or what's the complete alternative?

回答1:

Agora.io doesn't provide any method other passing a channel name manually or a default string. But what you can do is use Firebase dynamic link to share the channel name via a dynamic link. This link will redirect you to the page where you're taking channel name as input and fill the channel name according to the parameters passed. So your code will look something like:

 class AgoraImpementation extends State<AgoraImplementation> {

  @override
  void initState() {
    super.initState();
    this.initDynamicLinks();
  }

  initDynamicLinks(BuildContext context) async {
    await Future.delayed(Duration(seconds: 3));
    var data = await FirebaseDynamicLinks.instance.getInitialLink();
    var deepLink = data?.link;
    final queryParams = deepLink.queryParameters;
    if (queryParams.length > 0) {
      var channelName = queryParams['channel_name'];
      openFormScreen(channelName);
    }
    FirebaseDynamicLinks.instance.onLink(onSuccess: (dynamicLink)
    async {
      var deepLink = dynamicLink?.link;
      final queryParams = deepLink.queryParameters;
      if (queryParams.length > 0) {
        var userName = queryParams['channel_name'];
        openFormScreen(channelName);
      }
      debugPrint('DynamicLinks onLink $deepLink');
    }, onError: (e) async {
      debugPrint('DynamicLinks onError $e');
    });
  }

  openFormScreen(String userName){
    Navigator.of(context).pushNamed("routeFormScreen", arguments: {"channelName": channelName});
  }
}

来源：https://stackoverflow.com/questions/61504631/flutter-webrtc-video-call-signalling-doesnt-work