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What is the right way to get SignalR working on Xamarin mobile apps?
I'm building Xamarin mobile applications and a SignalR Hub server.
I'm trying to incorporate SignalR sending and receiving in the Xamarin mobile apps.
Some people are saying use the signalr client nuget package
Other people are saying use the dev branch of the signalR library
Other people are saying use the portable class library that comes in the xamarin branch of the SignalR library (not found, can only see xamarin-package branch)
I'm confused, I don't know what is the right way to get the latest versions of SignalR to work on Xamarin mobile apps with SignalR Hub servers
Please advise
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I haven't worked on this but I remember Greg Shackles posting a blog for an app he built using SignalR. He seems to have used the signalr client nuget package. You can download his sample and see if that works out for you.
Note: The blog was posted in May 2013. So due to new changes, it may not work out. But until you do some Rnd yourself, you probably wont get an easy answer.
http://www.gregshackles.com/2013/05/building-a-real-time-photo-gallery-with-xamarin-signalr-azure-and-webapi/
worked best!
just followed the tutorial on visualstudiomagazine and all worked like a charm.
I'm developing sur[e]bet app server side and client (mobile and desktop) for friends of mine, currently in pre alpha, but first data was pushed through.
Had problems on server side with VS 2010 (could not use netfx 4.5 and SignalR 2.x) mostly nuget package configuration and compatibility. Solved with SignalR sources 1.2.0 and project references. Currently seems OK. Server side is MVC4, WebAPI + SignalR.
happy New Year!
mel
Sounds interesting as there is hard to get any server-stuff functionality on Android. Will you github the project or something?
@MihaMarkic
It is not server-stuff functionality it is server (MVC4 + WebAPI + SignalR) and mobile clients. SingalR demos are mostly javascript, but SignalR is much more than JS browser client.
Greg's sample http://www.gregshackles.com/2012/07/using-signalr-in-monotouch-and-mono-for-android-apps/
Mobile client is just sending messages to hub (let say for the sake of simplicity) on the server which sends it further to all connected clients in realtime (WebSockets with failover to some other stuff).
Aaaa, ok, I misunderstood. Sadly there is no server functionality for Xamarin currently. AFAIK. I've had to build a Socket thing from scratch myself.
no problems.
Sockets? That is like dungeons of Moria. Why not http://androidapi.xamarin.com/?link=T%3aSystem.Net.HttpListener
or owin? SignalR 2 is built on top of owin and not sure if self hosting (server side) capability is brought to mobile profiles.
Regarding githubbing: not sure
SignalR has the Xamarin dependencies added after Greg posted that blog post. Here are a few repos that have SignalR in them:
You should be able to use SignalR ASPNET version: http://www.nuget.org/packages/Microsoft.AspNet.SignalR/
Newer:
https://github.com/SignalR/SignalR/tree/master/samples/Microsoft.AspNet.SignalR.Client.Android.Samples
https://github.com/SignalR/SignalR/tree/master/samples/Microsoft.AspNet.SignalR.Client.iOS.Samples
Older:
https://github.com/shanselman/PanTiltZoomSystem/tree/master/PTZRemoteController-iOS
https://github.com/shanselman/PanTiltZoomSystem/tree/master/PTZRemoteController-Android
I'm hoping to create a PCL project within Xamarin Studio that I reference from my iOS and Android projects all within the same solution. I can't seem to get it working.
I either get the Core project building (the PCL project) and then throws an error at run time (see screenshot in this form http://forums.xamarin.com/discussion/comment/41756/#Comment_41756)
or
I get a compiler error from Xamarin studio (/Library/Frameworks/Mono.framework/Versions/3.2.6/lib/mono/4.0/Microsoft.CSharp.Targets: Error: Compiler crashed with code: 1)
This is where my codebase is currently at. I attempted to build the SignalR Portal project from their github and then use it within my PCL project.
I've posted my solution to github here:
https://github.com/mikeberlin/Xamarin-SignalR-PCL-Clients
The end goal is to update this article to use a PCL project and add Google Glass support:
http://visualstudiomagazine.com/articles/2013/11/01/how-to-use-signalr-in-ios-and-android-apps.aspx
Any help would be appreciated, especially since I'm just diving into PCL and SignalR.
Thanks!
I took a closer look at the references used by @gshackles in the solution provided in the magazine article. He is using the 4.0 dll for the Newtonsoft.JSON project. So I tried changing to that reference in my PCL and everything is working lovely now. All projects are referencing the Core PCL project. w00t!
Any idea why the 4.5 dll wouldn't work?
As soon as I get a little further down the road with my Google Glass development I'm planning on expanding my repo to add Google Glass interaction with the chat room.
I'm digging SignalR, very cool stuff!
I mentioned that in the article:
It's due to a problem with Xamarin's reference assemblies that I believe is being addressed.
Gotcha, thanks for the info. I must have read right over that part in the article. That's what I get for reading late at night.
Have the xamarin issues been addressed since 1/30?
@JonDouglas @gshackles Any idea if these issues have been addressed yet? I'm trying to use the SignalR.Client NuGet package in a PCL and it doesn't seem to be connecting.
Fixed the issue; it seems everything is alright.
refer this https://components.xamarin.com/view/signalr
Hello, When I add the additional component in my project its giving error SignalR(Error) and the error is "The specified path, file name, or both are too long. The fully qualified name must be less than 260 and the directory name must be less than 248 characters".?
SignalR(Error) -> double click the component -> on SignalR page open 'Assemblies' tab -> if there are problems with the assemblies - remove them from 'References' and -> let the component to continue with the installation (see the red text with the error message)
@MuhammadBilalLiaquat >
Hello, When I add the additional component in my project its giving error SignalR(Error) and the error is "The specified path, file name, or both are too long. The fully qualified name must be less than 260 and the directory name must be less than 248 characters".?Avoid having your project folder to be inside many folders.
Always have your projects set up directly on a drive c:\ProjectHere or C:\MyProjectsFolder\ProjectHere