How do chat iOS applications communicate? - iphone

How do text chatting in applications like Whatsapp and Skype communicate? Specifically, how are messages received real time?
Thanks in advance!

This is related with what is called Socket programming in iOS. you may refer to apple developer documentation for that or this link can help you regarding this.
Following links infact would be very helpful:
http://blog.scriptico.com/08/iphone-chat-native-rtmp-library-for-ios-in-action/
http://mobile.tutsplus.com/series/building-a-jabber-client-for-ios/
Whatsapp which uses XMPP also based upon socket programming.
Thanks

Related

Direct VoIP call from one iOS device to another

I'am going to develop peer-to-peer VoIP iOS application. And want do it without any SIP proxy, SIP providers and other servers. Just VoIP calls frpm iOSdevice-to-iOSdevice. Both iOS device could be somewhere in Internet. Is it real in VoIP (with PJSIP for example and general with SIP)?
Could you please point me to main keys that I need for development.
I have already read these topics. Is it real solve problems with addressing in my configuration. PJSIP could help with correcting addressing?
Look at Apples Multipeer Connectivity framework. I have built an app that does exactly what you want. If you look to my profile and the questions I have asked you will get some good guidance. Though I recommend you do it with a backend since MultiPeer wasn't the best solution, atleast when it comes to supporting multiple peers and to be able to call another device that has the app in the background.
See Frank Shearar's Answer Here
In short, it looks like this would be a very difficult task.
Another option would be to use the Twilio SDK for iPhone (Obj-C). This would work well for what you're trying to do and would be a whole lot easier. Link

Communication between two iOS devices

I am looking for a way to have one iPhone app send a message to another app on a different phone (sort of like a Sender-Receiver set up). I am looking for the best possible way to do this. Does anyone have any ideas and/or tutorials?
Thanks for the help.
You should use GameKit. It is super easy to send messages between two iOS devices using it. Here's a great tutorial: Game Kit. You can also get more information about it here from the docs: About Game Kit.
You communicate by creating an ad-hoc bluetooth or local wireless network.
lmirak provided insightful info about device communication(especially about GameKit). I would like to add one more solution. You can use WiFi network to do your device communication.
See the link or download the sample application from developer.apple
The sample application named as WiTap. It demonstrates how to achieve network communication between applications. Using Bonjour, the application both advertises itself on the local network and displays a list of other instances of this application on the network.
If your app is only going to run on iOS, then you should use the fantastic MultipeerConnectivity library. https://developer.apple.com/documentation/multipeerconnectivity
If you need a solution that will work cross-platform, then one way to accomplish this is using sockets and connecting over a local network. On iOS you can use CocoaAsyncPods for sockets and NetService for discovery.
Here is a basic example app that does this: https://github.com/brendaninnis/LocalNetworkingApp
, which I explain in great detail here: http://brendaninnis.ca/connect-nearby-devices-part-1.html

iPhone instant message app tutorial

I'm wondering if anyone knows of a place where I can get a tutorial on building a simple IM-style chat app between two iphones? Hopefully involving push notifications, though that's not as necessary.
Thanks!
I don't know of a tutorial, but you will need to use two things:
Socket Programming. - To establish connection between the devices, and transfer data through sockets.
NSNetService/NSNetServiceBrowser - To publish your services.
Google these 2, and you'll be good to go!

How to implement chat using bonjour service?

I have one application in which all available clients are displayed.Now i want
to implement chatting between them.can it be done with help of bonjour service without
having any other server in between them?any tutorial or sample code for that?
These links might be useful.
http://mobileorchard.com/tutorial-networking-and-bonjour-on-iphone/
you can find source code on https://bitbucket.org/snej/chatty/src
thanks
Game Kit provides a high-level peer-to-peer connectivity API, which you can use for chat.

iPhone network game programming

I'm interested in writing an iPhone game which uses the network to allow users on different iPhones to play against each other. I'm looking for an example of a game with source code which does this. I need some simple examples and documentation. Where should I look? I'm brand new to iPhone programming. Thank you!
If you want to avoid just using GameKit, or you want to use the local wireless network alongside GameKit, the people who made BeamIt have very kindly published the source code for us all.
http://arctouch.com/beamit/developers/
For GameKit (peer-to-peer via Bluetooth), there is Apple's sample application GKTank. If you're interested in Bonjour discovery and communication over the local network, Apple has the sample application WiTap.
That is a big ask :)
A book you might find useful (as it has recipes for most of what you'll need to do) is Erica Sadun's excellent "IPhone Developer's Cookbook"
Kindness,
Dan
Most of the pieces that you need have examples on the apple site. You'll just have to put them together.
http://developer.apple.com/iphone/