Portable class libraries are a great way to maximize code sharing across platforms. With Xamarin having full support for it, there is no reason not to use them. At SQL Saturday Baton Rouge, Seth created a cross-platform application using PCLs and MVVM to maximize code sharing. If you've never created a mobile application and would like to know where to start or maybe you have but just haven't used any of these new technologies, watch this presentation and see how to do it all in C#.

1. Cross-Platform Mobile Development
with PCLs
Seth Valdetero

2. 2
Seth Valdetero
Senior Development Consultant
@valdetero
valdetero@gmail.com
linkedin.com/in/valdetero
github.com/valdetero
sparkhound.com/pages/blogs.aspx

3. Agenda
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1. Portable Class Libraries
2. Shared Projects
3. Demo
4. ???
5. PROFIT!!!!

4. File Linking
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5. Portable Class Library
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• Least Common Denominator
• Target Frameworks
• Profiles

6. Portable Class Library
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slodge.blogspot.com/2012/05/portable-class-libraries-in-mvvmcross.html

7. Portable Class Library
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8. Portable Class Library
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twitter.com/JamesMontemagno/status/472968183301697536

9. Shared Project
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10. DEMO
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11. Questions?
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12. Links
• twitter.com/JamesMontemagno/status/472968183301697536
• danrigby.com/2014/05/14/supported-pcl-profiles-xamarin-for-visual-studio-2/
• developer.xamarin.com/guides/cross-
platform/application_fundamentals/pcl/introduction_to_portable_class_libraries/
• msdn.microsoft.com/en-us/library/windows/apps/dn609832.aspx
• msdn.microsoft.com/en-us/library/gg597391%28v=vs.110%29.aspx
• embed.plnkr.co/03ck2dCtnJogBKHJ9EjY/preview
• slodge.blogspot.com/2012/05/portable-class-libraries-in-mvvmcross.html
• blogs.msdn.com/b/dsplaisted/archive/2012/08/27/how-to-make-portable-class-
libraries-work-for-you.aspx
• blogs.msdn.com/b/dotnet/archive/2014/04/21/sharing-code-across-platforms.aspx
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13. 13
Seth Valdetero
Senior Development Consultant
@valdetero
valdetero@gmail.com
linkedin.com/in/valdetero
github.com/valdetero
sparkhound.com/pages/blogs.aspx