Introduction to Xamarin, //build update and how to architect cross-platform applications using PCLs and Shared Projects

1. Craig Dunn
Developer Evangelist
Xamarin
craig@xamarin.com
@conceptdev
Mobile apps with C#
//build update edition
Sydney,April 2014

2. Mobile apps with C#
Xamarin
C# on iOS and Android
//build
build a cross-plat app
get a Xamarin t-shirt
PCL
VS2013

3. Modern language C#
Shared code
High performance

4. You
Us
Them

5. C# Development Environments

6. Mac OS X WindowsWindows
IDE
iOS
Android
Windows Phone
Windows Store
Xamarin
Business
Edition
+
Mac+
C# Development Environments

7. iOS Apps inVisual Studio !?

8. //build

9. Miguel’s talk
http://channel9.msdn.com/Events/Build/2014/3-653
Go Mobile with C# and Xamarin

10. Roslyn & Xamarin
http://tirania.org/blog/archive/2014/Apr-09.html
• Keep track of Roslyn...‘works’ now tho’ :-)
• Incorporate C# 6.0 features into Mono
• “The second one is that our compiler powers our Interactive C# Shell and we are about to launch something
very interesting with it. This functionality is not currently available on the open sourced Roslyn stack.”
• “Roslyn really shines for IDEs” so we’ll look at how to use it in Xamarin
Studio / NRefactory

11. iOS UI Designer
Visual Studio
coming...

12. Shared Projects
• File Linking /VS 2012 Project Linker extension “on steroids”
• Viable alternative to Portable Class Libraries for some uses
• PCLs still great for component builders (esp with NuGet)
• Shared Projects might be better for app builders
• Coming toVisual Studio (download preview now)
and Xamarin Studio (soon)

13. Portable Class Libraries
• “PCL assembly” is
generated, shared
• limited framework code
(predetermined by PCL
profile)
• Dependency Injection for
platform-specific features
• #if compiler directives not
allowed

14. Shared Projects
• no separate “output
assembly”, C# is compiled
into the referencing apps
• use any framework code
available on your target
platforms
• use #if compiler directives

15. demo

16. “NDCPortable”
code walkthrough
https://github.com/conceptdev/xamarin-samples/tree/master/NDCPortable

17. go...

18. “NDCCloud”
code walkthrough
https://github.com/conceptdev/xamarin-samples/tree/master/NDCCloud

19. Xamarin t-shirt
1.Visit http://xamarin.com/sharp-shirt
2. Download, build & run
3.“fix” app and run again
4. Order your shirt - FREE!

20. Cross-Platforms
Google Glass
http://blog.xamarin.com/develop-for-google-glass-with-xamarin.android/
Google Chromecast
http://www.knowing.net/index.php/2013/08/11/chromecast-xamarin-binding-
and-sample-source-code-on-github/
Amazon Fire HD
http://forums.xamarin.com/discussion/6647/how-to-set-up-kindle-hd-for-
development
Amazon Fire TV...

21. https://github.com/conceptdev/xamarin-samples/NDCPortable
https://github.com/conceptdev/xamarin-samples/NDCCloud
https://github.com/xamarin/mobile-samples/
Links
Today’s demo
General samples