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. In this session we will be creating a cross-platform application using PCLs and MVVM to maximize our code sharing. We will also be utilizing HttpClient, async/await, and SQLite.

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

4. File Linking
4

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