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Xamarin Building Cocoa apps with C#

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What is Xamarin? • Build Cocoa or Android apps in .NET • Produces native apps which directly use the platform frameworks • Develop in Visual Studio or Xamarin Studio

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Xamarin timeline • 2002 .NET Framework • 2004 Mono project • 2009 Mono Touch • 2011 Xamarin spun out of Novell

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Feature adoption • Mono often ship new compiler and framework features before Microsoft
 e.g. await/async, LINQ • SDK bindings usually available the next day

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3rd party code • Binding static libraries • Xamarin component store
 https://components.xamarin.com/ • Portable Class Libraries • .NET source code - C#, F#

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Drawbacks • Cocoapods • Core Data • Smaller community

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App gallery • Rdio • calca • iCircuit • Many more
 http://xamarin.com/apps/all

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Why use it? • Single codebase across iOS, Android, Windows • Shared code can be 20-30% of the combined source • Easier path to Cocoa for .NET developers

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Resources • Xamarin
 http://xamarin.com/ • Xamarin component store
 http://components.xamarin.com/ • Miguel de Icaza
 http://tirania.org/blog/