Android App Connecting to Node.js server using Socket.io

Question

I\'m having trouble getting my Android app to connect to a socket.io chat server. I\'m using socket.io-java-client created by Gottox which can be found here: https://github.

Answer 1

Puma has already answered on how you can implement a socket connection using SocketIO. This has nothing new to contribute. Yet, it is an attempt to help fellow newbies, as also introduce the implementation of Socket.io's java library.

Socket.IO has its own java implementation on Github, which you can follow along to create a socket application for Android/Java.

Android side:

Include this in your build gradle

compile ('io.socket:socket.io-client:0.8.3') {
    // excluding org.json which is provided by Android
    exclude group: 'org.json', module: 'json'
}

Provide Permission in your app:

Android Code: The structure of code is similar to how you would code in Node. The message in socket.on is similar to node's socket.on('message', ...)

import io.socket.client.Socket;
import io.socket.client.IO;
import io.socket.emitter.Emitter;

final Socket socket;
try{
socket = IO.socket("http://192.168.1.1:8080");

socket.on(Socket.EVENT_CONNECT, new Emitter.Listener() {

    @Override
    public void call(Object... args) {
        socket.emit("message", "hi");
        socket.disconnect();
    }

}).on("message", new Emitter.Listener() {
        //message is the keyword for communication exchanges
    @Override
    public void call(Object... args) {
        socket.emit("message", "hi");
    }

}).on(Socket.EVENT_DISCONNECT, new Emitter.Listener() {

    @Override
    public void call(Object... args) {}

});
    socket.connect();

}
catch(Exception e){
    
}

Node.js side

Create normal sockets using socket.io