Building Native Cross-Platform Apps in C# with Xamarin

Transcript

1. Building Native Cross-Platform Apps in C# with Xamarin Greg Shackles

   @gshackles greg@gregshackles.com github.com/gshackles speakerdeck.com/u/gshackles

2. nycmobiledev.net @NYCMobileDev

3. gonemobile.io @GoneMobileCast

4. What is native?

5. The Anatomy of a Native App Native User Interfaces Native

   API Access Native Performance

6. The Write Once, Run Anywhere Approach Lowest Common Denominator

7. The Xamarin Approach Native Apps, with Shared Code

8. Native Performance Xamarin.iOS does full Ahead Of Time (AOT) compilation

   to produce an ARM binary for Apple’s App Store. Xamarin.Android takes advantage of Just In Time (JIT) compilation on the Android device.

9. TL;DR Anything you can do in Objective-C, Swift, or Java

   can be done in C# or F# with Xamarin

10. Always Up To Date Same day support for all the

    things

11. Always Up To Date

12. Distribute Everywhere

13. Your Friends Are Invited Too Json.NET Rx …and many more!

14. Code Sharing Techniques Because sharing is caring

15. File Linking Core Project iOS Project Core Code iOS-Specific Code

    Android Project Core Code Android-Specific Code Windows Project Core Code Windows-Specific Code File Links

16. Shared Code Projects

17. Portable Class Libraries • One assembly • Multiple platforms •

    Including: • Xamarin.iOS • Xamarin.Android • Xamarin.Mac

18. The Xamarin Platform A Whirlwind Tour

19. Development Environment Xamarin Studio Visual Studio Windows or Mac 2010,

    2012, 2013, 2015

20. Visual Studio Integration

21. iOS Designer

22. Android Designer

23. Component Store

24. Xamarin.Forms Traditional Xamarin Approach Xamarin.Forms Shared UI Code

25. Xamarin.Forms: What’s Included? • 40+ Pages, Layouts, and Controls •

    Build from code or XAML • Data Binding • Navigation • Animation • Dependency Service • Messaging Center

26. Xamarin.Forms: Pages Content MasterDetail Navigation Tabbed Carousel

27. Xamarin.Forms: Layouts Stack Absolute Relative Grid ContentView Scroll Frame

28. Xamarin.Forms: Controls ActivityIndicator BoxView Button DatePicker Editor Entry Image Label

    ListView Map OpenGLView Picker ProgressBar SearchBar Slider Stepper TableView TimePicker WebView EntryCell ImageCell SwitchCell TextCell ViewCell …and more!

29. First Class F# Support

30. Razor Templating

31. Xamarin.UITest • Write UI tests in C# or F# •

    iOS and Android (with shared test code) • Run on simulator and devices • Compatible with all apps • Native • Hybrid • Xamarin

32. Test Cloud: Test on Real Devices

33. None
34. None
35. None

36. Profiler

37. Android Player

38. • Live online classes • Office hours • Offline access

    • Guest lectures • Certification

39. Let’s Code

40. Questions? Greg Shackles @gshackles greg@gregshackles.com github.com/gshackles speakerdeck.com/u/gshackles