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Code/Développement

Native Mobile App Development

for iOS, Android and Windows

in C# and Visual StudioErik POLZIN - Sr. Partner Manager

XAMARINErik.polzin@xamarin.com - www.xamarin.com

Zaak CHALAL - CEORedFabriQ

Zaak.chalal@redfabriq.com - www.redfabriq.com

Code/développement#mstechdays #xamarin

THE PLATFORM FOR THE MOBILE ENTERPRISE

In partnership with

Code/développement#mstechdays #xamarin

OVERVIEW

Mobile represents the single largest technology innovation of all time

Code/développement#mstechdays #xamarin

Smartphone adoption is happening

Faster than the PC boom of the 80s10X

Faster than the Internet boom of the 90s2X

Faster than the recent social networking explosion3X

Code/développement#mstechdays #xamarin

Enterprises are going mobile on multiple platforms

According to Gartner, by 2016, 70% of the mobile workforce will have a smartphone, and90% of enterprises will have two or more platforms to support

Code/développement#mstechdays #xamarin

Sweet spot for the successful mobile enterprise

End user experienc

e

Great apps delivered to

the user’s choice of device

Development agility to move at mobile speed

Better TCO, productivity and

Developer Experience

+

+

-

Code/développement#mstechdays #xamarin

NATIVE MOBILE APPS STRATEGY CHOICES

Code/développement#mstechdays #xamarin

iOS appObjective-CXCode

Android appJavaEclipse

Windows app

.NET/C# - HTML/JS - C++Visual Studio

The Siloed approach: Build native apps multiple times

Code/développement#mstechdays #xamarin

Objective C+ XIB

Java + XML C# + XAML

Native UI Native UI Native UI

Optional Remote Services(ASP.NET Web API

or any server technology)

Siloed approachBuild native apps multiple times means:

• Client development is completely different for each device type

• Only the Services (server-side) can be re-used, with certain differences when consuming them

• TCO grows exponentially

Code/développement#mstechdays #xamarin

The Siloed approach: Build native apps multiple timesMultiple teams and multiple code bases are expensive and slow

Great apps delivered to the user’s choice of device

Development agility hampered by multiple code bases and fragment toolsets

End user experienc

e

Better TCO, productivity and

Developer Experience

+

+

-

✗

Code/développement#mstechdays #xamarin

The write-once-run-anywhere approach

Black Box

Write-once-run- anywhere black

box

CSS | HTML | Lua | JavaScript | ActionScript

HTML Hybrid scenarios (Semi-native apps) like PhoneGap

Code/développement#mstechdays #xamarin

The write-once-run-anywhere approachHTML Hybrid scenarios (Semi-native apps) like PhoneGap

En

d u

ser

exp

eri

en

ce

Developer experience

Development agility hampered by HTML5 implementations fragmentation and insufficient tooling

Lowest common denominator apps with poor performance✗

Code/développement#mstechdays #xamarin

C# + XIB C# + XML C# + XAML

Native UI Native UI Native UI

Optional Remote Services(ASP.NET Web API

or any server technology)

Shared client app C# logic

C# unique approachpowered by Xamarin and Microsoft .NETFully native apps written entirely in C#

Xamarin exposes 100% of iOS and Android APIs in C#

Mobilize existing code, skills, and tools including Visual Studio

Share app logic code across device platforms

Code/développement#mstechdays #xamarin

ANYTHING YOU CAN DO IN OBJECTIVE-C OR JAVA CAN BE DONE IN C# WITH XAMARIN

Code/développement#mstechdays #xamarin

SHARING CODE ACROSSWINDOWS, IOS AND ANDROIDACCELERATES DEVELOPMENT

Code/développement#mstechdays #xamarin

C# and Xamarin’s unique approachThe best of all worlds

En

d u

ser

exp

eri

en

ceGreat apps delivered to the user’s choice of device

Development agility, with Visual Studio to move at mobile speedDeveloper Experience

Better TCO and productivity

Code/développement#mstechdays #xamarin

THE XAMARIN PLATFORM

Code/développement#mstechdays #xamarin

Recognized as mobile “Visionary” in 2013 Magic Quadrant for MADP

Winner of 2013 Visual Studio Integration Partner of the Year Awarded

Xamarin’s enterprise success500,000 registered developers in just 2 years

500K

Adding over 30,000 developers a month30K+

Customers in 185 countries185

Robust, enterprise-ready technology, in production use for 10 year

10 year

s

Code/développement#mstechdays #xamarin

C#

Azure

Code/développement#mstechdays #xamarin

Xamarin.iOS does full Ahead Of Time (AOT) compilation to produce an ARM binary suitable for Apple’s App Store

Xamarin.Android takes advantage of Just In Time (JIT) compilation on the Android device

Native compilation, native performance

Code/développement#mstechdays #xamarin

• A single solution for iOS, Android, and Windows development

• Leverage the entire Microsoft ecosystem:

• Team Foundation Server (TFS)

• ReSharper• Your favorite code

coverage and profiling tools

Visual Studio 2013 integration for iOS & Android

Code/développement#mstechdays #xamarin

UI design in Visual Studio• Create UI with drag and

drop simplicity

• Target multiple screen sizes, resolutions, and OS versions

• Layouts saved in native resource formats

• Worlds best Android designer available in Visual Studio

• iOS coming soon

Code/développement#mstechdays #xamarin

Xamarin Component Store

Build apps fasterAdd high quality pre-build app components directly from Visual Studio

Beautiful cross-platform UI controls, could services, and enterprise backend integrations are just a few clicks away

Code/développement#mstechdays #xamarin

Accelerate development with code sharing

Code sharing statistics from production Xamarin app:

iOS Android Windows RT Mac OS X

App logic User interface code

70%

30%

86%

14%

85%

15%

88%

12%

Code/développement#mstechdays #xamarin

“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

Technical collaboration for superior developer

experience

Exclusive MSDN offers that accelerate the transition

to mobile development

Microsoft and Xamarin Partner Globally

Code/développement#mstechdays #xamarin

CASE STUDIES

Code/développement#mstechdays #xamarin

Sharing 50,000 lines of codeAbout 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

Code/développement#mstechdays #xamarin

Sharing 50,000 lines of code

ChallengeUnable to deliver features on all platforms simultaneously because of multiple, platform-specific code bases

High costs to develop and maintain apps

ResultsUsing 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

Code/développement#mstechdays #xamarin

Matt CrockerDirector of Client Engineering

“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.”

Sharing 50,000 lines of code

Code/développement#mstechdays #xamarin

IMPLEMENTATION

Code/développement#mstechdays #xamarin

Which device to target ?

Really, do you have a choice?

Code/développement#mstechdays #xamarin

Architecture reminder

C# + XIB C# + XML C# + XAML

Native UI Native UI Native UI

Optional Remote Services

(ASP.NET Web API or any server technology)

Shared client app C# logic

Team

Foundatio

n S

erv

erSDK : Wrapper + Compiler

Code/développement#mstechdays #xamarin

Application life cycleVisual Studio and TFS

Target

UIDesig

n

Code &

Share

UnitTestin

g

Xamarin

Test cloud

iOSAndroidXAMARIN

Project architecture & methodologies

Code sharing Specific

iOS Android

With Architecture & methodologies

iOS Android

Without Architecture & methodologies

Deploy

Windows Store

iTunesGoogle Play, …

Code/développement#mstechdays #xamarin

Design UI Use xCode to design iOS UI

Use Visual Studio to design Android UI

Code/développement#mstechdays #xamarin

Project organization and code sharing

Code sharing Pragma File Links PCL Partial class Inheritance

Code/développement#mstechdays #xamarin

Understand the « Binding » : Simple sample with button control

Under IOS

Under Android

Code/développement#mstechdays #xamarin

CompilerNative compilationXamarin's compiler is smart - so smart that it can produces exactly the right output for each platform. Xamarin.iOS does full Ahead-of-Time (AOT) compilation to produce an ARM binary suitable for Apple's App Store, while Xamarin.Android takes advantage of Just In Time compilation right on the Android device. Your shared code never needs to know the difference!

démo

Code/développement#mstechdays #xamarin

FIELD SERVICE

https://github.com/xamarin/prebuilt-apps

Code/développement#mstechdays #xamarin

iOS and Android limitations• Two compiling way = two contexts DotNet runtime limitations under iOS

and Android

• Android, Apple limitations

• IOS, Example: Dynamic code generation is forbidden by Apple. So no VM.

• The "DLR" can not be used (cannot use Reflection.System.Emit, …)

• For more information about limitations please read :– Android :

http://docs.xamarin.com/guides/android/advanced_topics/limitations/offline.pdf – iOS : http://docs.xamarin.com/guides/ios/advanced_topics/limitations/offline.pdf

Code/développement#mstechdays #xamarin

Recommendations• Engineered for code sharing

– PCL to isolate your business logic– Partial class (example on your ViewModel)– Pragma (The preprocessors directives)– Controls / components– …

• Architecture and methodologies– Organize and normalize your solutions– Git with TFS– Framework IOC like OpenNetCF ioc / tinyioc– Framework MVVM like mvvmcross– Database : SQLite / NoSQL– TEST, TEST and TEST : Test units (Andr.Unit, Touch.Unit),

Xamarin Test Cloud, – …

• Develop your components and Framework• Components on XAMARIN STORE

Code/développement#mstechdays #xamarin

ENTERPRISE GRADE CAPABILITIES

Code/développement#mstechdays #xamarin

Go Mobile programLive online training from Xamarin experts

Lectures and labs

Two coaching sessions where you meet oneon one with expert Xamarin mobile developers

What you’ll learniOS and Android fundamentals

Mobile app lifecycle

Native UI and controls

Cross-platform architecture

Mobile best practices

Secure backend integration

Xamarin University

Code/développement#mstechdays #xamarin

Xamarin developer certificationsXamarin skills are increasingly in demandcertifications let the market know that you represent top Xamarin talent

Code/développement#mstechdays #xamarin

Xamarin global support

For small business and individualsEmail support

Xamarin-managed forums

Available to allThe Xamarin developer center

150+ guides and tutorials250+ sample appsRelease notes, videos, and much more

Evolve 2013 videos50 sessions covering enterprise mobility

and cross-platform best practices

Code/développement#mstechdays #xamarin

NEXT STEPS

Code/développement#mstechdays #xamarin

MSDN subscriber offersExtended trial Exclusive training

Experience state-of-the-art cross-platform mobiledevelopment with a fully-featured, 90-day trial of Xamarin for Visual Studio.Develop iOS and Android apps with C# in Visual Studio today

Learn the fundamentals of iOS, Android and cross-platform mobile development at your own pace with exclusive training contentVideos, documentation and samples from Xamarin available only to MSDN subscribers

Code/développement#mstechdays #xamarin

MSDN subscriber offersSpecial pricing for individuals and teams

© 2014 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

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