Cross Platform Mobile Development in C#

James Montemagno, Developer Evangelist@JamesMontemagno

Hi, I’m James.Xamarin Developer Evangelist

Windows Developer in Phoenix

Mobile Developer in Seattle

Success

Windows StoreiOSAndroid Windows Phone

Cross Platform

iOS, Android, Windows, Windows Phone, Mac

2.5+ Billion Devices!

Code Sharing

Objective-C, Java, C#Not much re-use

C# is Awesome• Shorter, Simpler, More

Maintainable• LINQ• Lambdas• Events• Generics• Async/Await

Code Sharing

Write it all in C#

What is Xamarin?• Write Android/iOS in C#• Built on Mono• Compiles to Native App• Re-use code on all

platforms

No Compromise

• Full API Coverage• Beautiful C#

Bindings• If you can do it in

Java/Objective C you can do it in C#

Developing with Xamarin

Xamarin StudioPC or Mac

Visual Studio Plugin

VS 2012/2013

Code Sharing• File Linking• Project Linking• Portable Class

Libraries

Awesome Stuff• Data Binding on ALL Platforms

• MVVMCross• ReactiveUI

• Component Store• NuGet Support

Let’s Code!