simple chat app using socket.io and Android. Created in 12-5-2021

• MVVM architecture
• Single Activity
• DataBinding
• Coroutines
• Navigation Componenet
• Kotlin
• Node Js
• Gson
• ssp && sdp

1.installing the Socket.IO Dependencies to build.gradle:

dependencies {
    ...
    implementation 'com.github.nkzawa:socket.io-client:0.6.0'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
}

2.add internet permission to AndroidManifest.xml.

<uses-permission android:name="android.permission.INTERNET"/>

3.Create Server using NodeJS

var socketIO = require('socket.io'),
    http = require('http'),
    port = process.env.PORT || 6000, // Port
    ip = process.env.IP || '10.10.10.18', // My IP address
    server = http.createServer().listen(port, ip, function() {
        console.log("IP = " , ip);
        console.log("start socket successfully");
});

io = socketIO.listen(server);
//io.set('match origin protocol', true);
io.set('origins', '*:*');

4. Run the server from cmd

npm start

5. To Know your IP address run this in the cmd

ipconfig