PubBub WebRTC Android Demo is Not Connecting from Android to Android

Question

When I tried the demo app https://kevingleason.me/AndroidRTC/, it was working as expected.

But when I tried with two android devices, I can make a call and receive call, but they don't get connected. In both devices, its own camera feed is displayed with a text "Connecting...". I tried on both my home Wifi and mobile data 3G. There is no error that I can find in log.

Could anyone help me to resolve the issue please. What is that I am missing here?

I am using the latest code from https://github.com/GleasonK/AndroidRTC which already has the Xirsys ICE servers configured. But I noticed that the Xirsys ICE servers is not added in the below line from VideoChatActivity.java, so I also tried adding that servers into the PnSignalingParams' constructor, but still facing the same Connecting message only.

List<PeerConnection.IceServer> servers = getXirSysIceServers();    
if (!servers.isEmpty()) {      
   this.pnRTCClient.setSignalParams(new PnSignalingParams(servers));      
}

@CraigConover - Thanks for your time. Not exactly I guess. I already checked that SO thread, that differs from my case. In my case, after I receive the call in receiver side, both caller and receiver get their own front camera stream is rendered in their own screen along with a text "Connecting...". (not as blank screen as in the other SO thread). Could you please help me. — solar, Sep 20 '16 at 03:32
@CraigConover - This issue is also listed in one another thread (http://stackoverflow.com/questions/37835110/how-to-use-xirsys-hosting-in-pubnub-android-example), but I couldn't find solution in that thread. — solar, Sep 20 '16 at 03:41
Are you able to follow the messages being sent through the signalling? Can you see if **offer** and **answer** are being passed? Also, what candidate types (**typ** param in candidate) is the device sending? — LeeSylvester, Sep 21 '16 at 09:08
@LeeSylvester - I think, this issue is occurred to almost everyone https://github.com/GleasonK/AndroidRTC/issues/3 it seems. Since I have lack of time in this project, I didn't want to spend more on this. Now I am looking for alternative/custom signaling solutions. If I find some time later, I will post my observation you asked. Thanks, though. — solar, Sep 22 '16 at 05:17

score 1 · Answer 1 · edited Feb 04 '17 at 14:37

I have fixed the issue. It was little tricky. If you see the log, it will show you that the application always execute createOffer method. So both client A and client B will send an offer in same time. You can fix that issue by giving some condition so if the client A give an offer, and the client B will response by give an answer.

To see if any error occurs you can use method onCreateFailure(String s) and onSetFailure(String s) in PnPeer.java. Hope this will help.

PubBub WebRTC Android Demo is Not Connecting from Android to Android

1 Answers1