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Introduction to xamarin

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Daniel Fikre

- Xamarin enables developers to create native iOS, Android, Mac, and Windows applications using C# and the .NET framework. This allows sharing of code and libraries across platforms. - Xamarin uses a unique approach of native user interfaces, native performance, and shared code across platforms while using C# and .NET. It allows full API coverage on all platforms. - Xamarin has been used by enterprises for over a decade and allows writing applications once in C# that can run on over 2.5 billion devices.

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Austin Mobile .NET Develops Group
Thank Sponsors • Microsoft - Ryan Joy • Xamarin - James Montemagno • Netrix - Rabi Satter
Enabling Developers to Create Native
 iOS, Android, Mac, & Windows apps in C# Rabi Satter Rabi@Satter.org www.satter.org @rsatter42
What is Xamarin? • Xamarin enables developers to reach all major mobile platforms! Native User Interface Native Performance Shared Code Across Platforms C# & .NET Framework
Mobile Development Approaches
Silo’d Approach Build Apps Multiple Times • Multiple Teams • Multiple Code Bases • Different toolsets
Write Once, Run Anywhere Approach Black Box • Lowest common denominator • Browser fragmentation • Developing & designing for 1 platform, happen to get other platforms
Xamarin’s Unique Approach • Native User Interface • Native Performance • Shared code across platforms • C# & .NET Framework • Full API Coverage
Xamarin.iOS does full Ahead Of Time (AOT) compilation to produce an ARM binary for Apple’s App Store. Native Performance Xamarin.Android takes advantage of Just In Time (JIT) compilation on the Android device.
Code Sharing: Accelerate Development 
 Code-sharing stats from iCircuit, built with Xamarin and featured on the App Store. Source: http://praeclarum.org/post/42378027611/icircuit-code-reuse- part-cinq • Up to 90% Code Reuse • Leverage existing libraries
Why C#?
C# Is Awesome • LINQ Support • Work With XML Easily XDocument • Event Handling & Delegates
C# Is Awesome – JSON Made Easy Json.NET offers simple conversions to and from JSON strings and .NET objects, with SerializeObject and DeserializeObject methods.
See the Difference – Attributed Strings C# with XamarinObjective-C
Probing for properties on an AudioFileC# with XamarinObjective-C
See the Different – Android ItemClickC# with XamarinJava C# & Async with Xamarin
Async/Await Write Beautiful & Maintainable Code
Why Xamarin?
Write Everything in C# iOS, Android, Windows, Windows Phone, Mac 2.5+ Billion Devices!
Xamarin History
 Over a Decade of Enterprise Production Use 2000 Ximian 
 Founded 2001 Mono Started 2003 Ximian 
 Acquired 
 by Novell 2009 First iOS product (now Xamarin.iOS) launches 2011 Xamarin 
 Founded ! First 
 Release of Xamarin.Android 2012 First 
 release of Xamarin.Mac ! Launch
 Partner
 Program 2013 Xamarin 2.0 ! Component Store ! Evolve 2013 ! Xamarin Test Cloud ! Microsoft Partnership Reach 200,000 Developer Mark 500,000+ 
 Developers 100+ Partners 100+ Components
Anything you can do in Objective-C or Java can be done in C# and Visual Studio with Xamarin! 100% API Coverage
Always Up to Date Always up-to-date with the latest APIs. Great track record. Shipped same-day support for iOS 5, iOS 6, iOS 6.1, iOS 7
Portable Class Libraries ! • 1 Assembly • Multiple Platforms • Including: • Xamarin.Android • Xamarin.iOS !
Portable Class Libraries Features •Centralized Code Sharing •How you expect it to work •Debug seamlessly into and out of PCL ! •Project/Assembly Sharing •NuGet
PCLs – Well Documented
Microsoft and Xamarin Partner Globally With Xamarin, developers combine all of the productivity benefits of C#, Visual Studio 2013 and Windows Azure with the flexibility to quickly build for multiple device targets.” S. Somasegar, Corporate Vice President, Microsoft
Distribute Everywhere A Xamarin app is an app, distribute it everywhere
Products
Xamarin.Mac Xamarin Studio Xamarin Test Cloud Component Store Xamarin.iOS Xamarin.Android Xamarin for Visual Studio .NET Mobility Scanner
Development Environment Xamarin Studio PC or Mac Visual Studio Plugin VS
Visual Studio Integration A single solution: • iOS • Android • Windows Phone • Windows Store ! Leverage the entire Microsoft ecosystem: • ReSharper • Team Foundation Server • Your favorite code coverage and profiling tools
Visual Studio Integration Debug to: • Emulators • Devices ! ! Integrated into toolbar • Status • Logs • List of devices ! Just Click Start Debugging!
Xamarin Studio • Optimized for cross- platform mobile development ! • Explore native APIs with code completion ! • World class Android and iOS designers ! • Powerful debugging on simulator or device
Android Designer • Worlds best Android designer • Available in: • Xamarin Studio • Visual Studio ! • Create UI with drag & drop simplicity ! • Target multiple screen sizes, resolutions and Android versions ! • Layouts saved in standard Android XML files
iOS Designer • World’s first iOS Designer available in Xamarin Studio (and soon Visual Studio) ! • Follows familiar Visual Studio designer idioms ! • Supports all UIKit elements ! • Edit custom and 3rd party components ! • Live preview of changes to properties !
Xamarin Component Store Build Apps Faster ! • Add high quality pre- built app components directly from Visual Studio and Xamarin Studio ! • Beautiful cross- platform UI controls, cloud services and enterprise backend
.NET Mobility Scanner How mobile is your .NET? • Scan .exe or .dll to determine compatibility • Generates full report:
Prebuilt Field Service App App Features: • Location-based assignments / routing • Time recording • Camera capture of work • Signature capture ! Cross-Platform Techniques • MVVM pattern • Xamarin.Mobile • Signature control from Component Store • SQLite for storage on all 3 platforms
DEMO
GET YOUR C# SHIRT TODAY!
Xamarin Evolve 2013 Sold Out!! 650 Conference 
 Attendees 8,400 Live stream 
 hours viewed #1 Trending on Twitter
 during keynote Watch Sessions & Highlights: http://xamarin.com/evolve/2013
www.xamarin.com/evolve
Rdio Case Study
About Rdio • Rdio is the leading music streaming and sharing service started by the founders of Skype ! • Rdio is already in 30 countries with over 20 million songs. ! • Available in 31 countries “Rdio’s mobile app is also the best looking and best implemented of the three [music streaming apps reviewed].” Wired Magazine
Challenge • Unable to deliver features on all platforms simultaneously because of multiple, platform-specific code bases ! • High costs to development and maintain apps Sharing 50,000 lines of code ! Results • Using Xamarin, Rdio now shares over 50,000 lines of C# across iOS, Android, and Windows, enabling them to focus on feature-parity and user experience.
“Xamarin offers the best of all worlds. We deliver high performance, native apps that, until Xamarin, were only possible with Objective-C and Java. Sharing over 50,000 lines of code across platforms gives us more time to spend on great user experiences.” Matt Crocker! Director of Client Engineering Sharing 50,000 lines of code
• Go Mobile Program Live online training from Xamarin experts Lectures and labs One-on-one with expert Xamarin mobile developers • What You’ll Learn • iOS and Android Fundamentals • Mobile App Lifecycle • Native UI and Controls • Cross-platform Architecture • Mobile Best Practices • Secure Backend Integration
Xamarin Developer Certifications Xamarin skills are increasingly in demand – certifications let the market know you represent top talent

More Related Content

Introduction to xamarin

  • 1. Austin Mobile .NET Develops Group
  • 2. Thank Sponsors • Microsoft - Ryan Joy • Xamarin - James Montemagno • Netrix - Rabi Satter
  • 3. Enabling Developers to Create Native
 iOS, Android, Mac, & Windows apps in C# Rabi Satter Rabi@Satter.org www.satter.org @rsatter42
  • 4. What is Xamarin? • Xamarin enables developers to reach all major mobile platforms! Native User Interface Native Performance Shared Code Across Platforms C# & .NET Framework
  • 6. Silo’d Approach Build Apps Multiple Times • Multiple Teams • Multiple Code Bases • Different toolsets
  • 7. Write Once, Run Anywhere Approach Black Box • Lowest common denominator • Browser fragmentation • Developing & designing for 1 platform, happen to get other platforms
  • 8. Xamarin’s Unique Approach • Native User Interface • Native Performance • Shared code across platforms • C# & .NET Framework • Full API Coverage
  • 9. Xamarin.iOS does full Ahead Of Time (AOT) compilation to produce an ARM binary for Apple’s App Store. Native Performance Xamarin.Android takes advantage of Just In Time (JIT) compilation on the Android device.
  • 10. Code Sharing: Accelerate Development 
 Code-sharing stats from iCircuit, built with Xamarin and featured on the App Store. Source: http://praeclarum.org/post/42378027611/icircuit-code-reuse- part-cinq • Up to 90% Code Reuse • Leverage existing libraries
  • 12. C# Is Awesome • LINQ Support • Work With XML Easily XDocument • Event Handling & Delegates
  • 13. C# Is Awesome – JSON Made Easy Json.NET offers simple conversions to and from JSON strings and .NET objects, with SerializeObject and DeserializeObject methods.
  • 14. See the Difference – Attributed Strings C# with XamarinObjective-C
  • 15. Probing for properties on an AudioFileC# with XamarinObjective-C
  • 16. See the Different – Android ItemClickC# with XamarinJava C# & Async with Xamarin
  • 17. Async/Await Write Beautiful & Maintainable Code
  • 19. Write Everything in C# iOS, Android, Windows, Windows Phone, Mac 2.5+ Billion Devices!
  • 20. Xamarin History
 Over a Decade of Enterprise Production Use 2000 Ximian 
 Founded 2001 Mono Started 2003 Ximian 
 Acquired 
 by Novell 2009 First iOS product (now Xamarin.iOS) launches 2011 Xamarin 
 Founded ! First 
 Release of Xamarin.Android 2012 First 
 release of Xamarin.Mac ! Launch
 Partner
 Program 2013 Xamarin 2.0 ! Component Store ! Evolve 2013 ! Xamarin Test Cloud ! Microsoft Partnership Reach 200,000 Developer Mark 500,000+ 
 Developers 100+ Partners 100+ Components
  • 21. Anything you can do in Objective-C or Java can be done in C# and Visual Studio with Xamarin! 100% API Coverage
  • 22. Always Up to Date Always up-to-date with the latest APIs. Great track record. Shipped same-day support for iOS 5, iOS 6, iOS 6.1, iOS 7
  • 23. Portable Class Libraries ! • 1 Assembly • Multiple Platforms • Including: • Xamarin.Android • Xamarin.iOS !
  • 24. Portable Class Libraries Features •Centralized Code Sharing •How you expect it to work •Debug seamlessly into and out of PCL ! •Project/Assembly Sharing •NuGet
  • 25. PCLs – Well Documented
  • 26. Microsoft and Xamarin Partner Globally With Xamarin, developers combine all of the productivity benefits of C#, Visual Studio 2013 and Windows Azure with the flexibility to quickly build for multiple device targets.” S. Somasegar, Corporate Vice President, Microsoft
  • 27. Distribute Everywhere A Xamarin app is an app, distribute it everywhere
  • 29. Xamarin.Mac Xamarin Studio Xamarin Test Cloud Component Store Xamarin.iOS Xamarin.Android Xamarin for Visual Studio .NET Mobility Scanner
  • 30. Development Environment Xamarin Studio PC or Mac Visual Studio Plugin VS
  • 31. Visual Studio Integration A single solution: • iOS • Android • Windows Phone • Windows Store ! Leverage the entire Microsoft ecosystem: • ReSharper • Team Foundation Server • Your favorite code coverage and profiling tools
  • 32. Visual Studio Integration Debug to: • Emulators • Devices ! ! Integrated into toolbar • Status • Logs • List of devices ! Just Click Start Debugging!
  • 33. Xamarin Studio • Optimized for cross- platform mobile development ! • Explore native APIs with code completion ! • World class Android and iOS designers ! • Powerful debugging on simulator or device
  • 34. Android Designer • Worlds best Android designer • Available in: • Xamarin Studio • Visual Studio ! • Create UI with drag & drop simplicity ! • Target multiple screen sizes, resolutions and Android versions ! • Layouts saved in standard Android XML files
  • 35. iOS Designer • World’s first iOS Designer available in Xamarin Studio (and soon Visual Studio) ! • Follows familiar Visual Studio designer idioms ! • Supports all UIKit elements ! • Edit custom and 3rd party components ! • Live preview of changes to properties !
  • 36. Xamarin Component Store Build Apps Faster ! • Add high quality pre- built app components directly from Visual Studio and Xamarin Studio ! • Beautiful cross- platform UI controls, cloud services and enterprise backend
  • 37. .NET Mobility Scanner How mobile is your .NET? • Scan .exe or .dll to determine compatibility • Generates full report:
  • 38. Prebuilt Field Service App App Features: • Location-based assignments / routing • Time recording • Camera capture of work • Signature capture ! Cross-Platform Techniques • MVVM pattern • Xamarin.Mobile • Signature control from Component Store • SQLite for storage on all 3 platforms
  • 39. DEMO
  • 41. Xamarin Evolve 2013 Sold Out!! 650 Conference 
 Attendees 8,400 Live stream 
 hours viewed #1 Trending on Twitter
 during keynote Watch Sessions & Highlights: http://xamarin.com/evolve/2013
  • 44. About Rdio • Rdio is the leading music streaming and sharing service started by the founders of Skype ! • Rdio is already in 30 countries with over 20 million songs. ! • Available in 31 countries “Rdio’s mobile app is also the best looking and best implemented of the three [music streaming apps reviewed].” Wired Magazine
  • 45. Challenge • Unable to deliver features on all platforms simultaneously because of multiple, platform-specific code bases ! • High costs to development and maintain apps Sharing 50,000 lines of code ! Results • Using Xamarin, Rdio now shares over 50,000 lines of C# across iOS, Android, and Windows, enabling them to focus on feature-parity and user experience.
  • 46. “Xamarin offers the best of all worlds. We deliver high performance, native apps that, until Xamarin, were only possible with Objective-C and Java. Sharing over 50,000 lines of code across platforms gives us more time to spend on great user experiences.” Matt Crocker! Director of Client Engineering Sharing 50,000 lines of code
  • 47. • Go Mobile Program Live online training from Xamarin experts Lectures and labs One-on-one with expert Xamarin mobile developers • What You’ll Learn • iOS and Android Fundamentals • Mobile App Lifecycle • Native UI and Controls • Cross-platform Architecture • Mobile Best Practices • Secure Backend Integration
  • 48. Xamarin Developer Certifications Xamarin skills are increasingly in demand – certifications let the market know you represent top talent