The document summarizes a presentation about developing cross-platform mobile applications using Xamarin and C#. It introduces the presenter and their background. It then discusses the growth of mobile usage and challenges of native mobile development. It introduces Mono and how Xamarin allows developing mobile apps using C# that can run on iOS and Android by sharing most non-UI code between platforms. It demonstrates code sharing and discusses development environments.

1. Welcome to
Microsoft User Group Hyderabad
January 2014 UG Meet

2. Cross Platform, Native Mobile
Application Development
Using Xamarin and C#

3. Your Presenter
•
Shravan Kumar Kasagoni
•
Senior Mobile Web Software Engineer @
Thomson Reuters
•
Microsoft MVP - ASP.NET/IIS
•
http://theshravan.net
•
@techieshravan

4. Why Mobile?

5. mobile
huge
is

6. 1 billion active mobile
broadband subscriptions

7. mobile is fast becoming
the primary way people
browse the web

8. mobile only web users

9. Native Platform Languages

10. Write Once, Run Anywhere?
!=
!=

11. C# to the rescue!

12. How?

14. What is Mono?
•
Open source implementation of the .NET platform
created by Ximian (ECMA 334/335)
•
2001: Created to bring Windows applications to
Linux
•
2003: Acquired by Novell with Ximian
•
Matured at Novell in research mode; now a worldclass runtime.

15. Bringing .NET to Linux
.NET Apps
.NET Apps
Microsoft
.NET
Mono
Windows
Linux

16. .NET on Android,iOS
iOS
iOS
MonoTouch
Xamarin.iOS
Android
Android
Mono for Android
Xamarin.Android
Linux
Mono
Free Software/Open Source License
Commercial License

17. Xamarin
•
Founded in May 2011
•
Xamarin has a perpetual license to all Mono IP:
Copyrights, patents and trademarks
•
Focused on mobile app development

18. Bringing .NET to Android
Apps
.NET APIs
Android
Bindings
Mono Runtime
MCW
ACW
Android Kernel
android.*
java.*
Dalvik Runtime

19. Brining .NET to iOS
NO RUNTIMES ALLOWED
Mono Runtime
iOS

20. Brining .NET to iOS
App
Application Code
.NET APIs
iOS Bindings
iOS

21. Anything you can do in
Objective-C or Java can be
done in C# with Xamarin.

23. C# Development Environments
MAC OSX
Windows
IDE
Xamarin Studio
VS + Xamarin
Xamarin Studio
Business Edition
iOS
WORKS
Android
WORKS
MAC
WORKS
WORKS + MAC
WORKS
WORKS

24. Demo Time

25. What Code Can Be Shared?
•
Most non-UI or platform code
•
Core application logic
•
Entities
•
LINQ (objects, XML)
•
Network access (system.Net)

26. Sharing Code Options
•
File Linking
•
Portable Class Library
•
Conditional Compilation

27. Demo Time

28. Reach Me
•
http://theshravan.net
•
@techieshravan

29. Thank You