webrtc-android-demo

An attempt to provide a codelab for Webrtc in Android - Similar to codelab for web at https://codelabs.developers.google.com/codelabs/webrtc-web/

More at : https://vivekc.xyz/getting-started-with-webrtc-for-android-daab1e268ff4

Setup Instructions

The test setup contains of three components:

Signaling server
WebRTC Android App
WebRTC example web site

Important: The IP address of the signaling server is hardcoded to 192.168.178.207 and need to be changed in files SignallingClient.java and main.js.

Build Android App Client

"Open an existing Android Studio project"
Select the Step-3 folder
On "Unable to get Gradle wrapper properties from:" click "Ok" to recreate gradle files
Ignore/Cancel all git related questions
Agree to update Gradle
Now a warning appears, agree to "Remove Build Tools version and sync project"
Select "Files" "Sync Project with Gradle Files"
Building and installing the App should work at this point

Start Signaling Server

The signaling server works uses npm and nodejs:

cd signalling
npm install
node index.js

The last command start the signalling server.

Start Web Client

cd signalling
python3 -m http.server

Now open http://localhost:8000 in the browser. You can use a different web server as the python buildin, of course.

How to enable HTTPS

Change http to https in signalling/index.js, signalling/js/main.js and Step-3/app/src/main/java/xyz/vivekc/webrtccodelab/SignallingClient.java.

Then create files key.pem and cert.pem (e.g. with openssl) and uncomment the key options in signalling/index.js.

Command to create key.pem and cert.pem: