AWS Android聊天应用程序

Question

I am trying to make an android chat application. I am thinking about making it with aws. But the problem is that I am unable to find any good tutorial for doing this and I have no idea how to do it.

So could anyone please suggest some tutorial for sending push notification or on how to make a chat application?

Answer 1

Firebase is well suited to this due to its "realtime database" feature. Here's a few tutorials I found by Googling

• https://code.tutsplus.com/tutorials/how-to-create-an-android-chat-app-using-firebase--cms-27397
• http://myapptemplates.com/simple-android-chat-app-tutorial-firebase-integration/
• https://codelabs.developers.google.com/codelabs/firebase-android/#0

Answer 2

Check Socket.IO for android. ( https://github.com/socketio/socket.io-client-java )

Its really easy to write a chat application. But you need a server side. Easy to write a simple server for this chat app. Server reveice the all message from clients and broadcast the message, to all.

Gradle:

compile 'com.github.nkzawa:socket.io-client:0.5.1'

Android manifest:

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

Java

public static Socket mSocket;
try {
            mSocket = IO.socket("http://192.168.1.104:4444");
            mSocket.connect();
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }

Send messsage to server:

MainActivity.mSocket.emit("message","Text here...");

Create a listener for another message:

MainActivity.mSocket.on("newMessage", onMessageArrive); // Oncreate


private Emitter.Listener onMessageArrive = new Emitter.Listener() {
        @Override
        public void call(final Object... args) {
            getActivity().runOnUiThread(new Runnable() {
                @Override
                public void run() {

                    String data = (String)args[0];
                    // Here is all message. add it to list :) Or Push notif
                }
            });
        }
    };

// Server side:

var http = require('http');
var express = require('express'),
    app = module.exports.app = express();
var io = require('socket.io').listen(app.listen(4444));

io.on('connection', function (socket) {
  socket.on("message",function(msg){
      io.sockets.emit('newMessage', msg);
  });
});

Run:

npm install express
npm install socket.io
node filename.js

Just dont forget to check you IP! :) Done! You have a Real Time Chat!!