Xamarin for iOS developers

Silicon Valley iOS Developers meetup (18-Apr-16) talk about using Xamarin to develop iPhone apps in Visual Studio with C#.

1. Microsoft+Xamarin Update Building iOS apps with Xamarin (and why would I want to?) Silicon Valley iOS Developers + 18 April 2016

2. Who’s this guy? Craig Dunn Xamarin Microsoft craig@ xamarin.com conceptdev . blogspot.com @ conceptdev

3. Visual Studio + Mac = Xamarin.iOS ✓ Create iOS, tvOS , watchOS apps ✓ Access all native iOS features ✓ Edit Storyboards and XIBs ✓ Build, test in simulator, debug ✓ Also use Xamarin.Studio on OS X

4. ✓ demo: TaskyStoryboard

5. http :// tirania.org/tmp/rosetta.html The “Rosetta Stone” https://developer.xamarin.com/api/root/ios-unified / https://developer.xamarin.com/guides/ios/under_the_hood/api_design /

6. ✓ demo: To9o

7. ✓ Quick Actions ✓ Peek & Pop ✓ Pressure Sensitivity 3D Touch

8. ✓ CoreSpotlight ✓ NSUserActivity (Handoff & Siri) Search

9. ✓ AddressBook deprecated ✓ Contacts (create/edit) ✓ ContactsUI (read) Contacts

10. ✓ STACKS (horizontal & vertical) ✓ Leading/Trailing (not Left/Right) - great for localization UIStackView

11. ✓ Right-to-left support ✓ Including UINavigationController ✓ UIStackView ! (localization) UITextAlignment.Natural ; Leading & Trailing v Left & Right

12. ✓ Re-ordering now super-easy UICollectionView CanMoveItem (view, index) MoveItem (view, source, dest )

13. ✓ Slide Over ✓ Split Screen (true multitasking) ✓ Picture-in-picture iPad Multitasking

14. ✓ Safari-in-a-box SFSafariViewController

15. ✓ how it works…

16. A brief (15 year) history… First release of Xamarin.Mac Launch Partner Program 200,000 Developers Xamarin Founded First release of Xamarin.Android Xamarin.iOS launches (originally known as MonoTouch ) Ximian Founded 2001 2003 2009 2011 2012 2013 Mono Launches Ximian Acquired by Novell Xamarin 2.0 Component Store Xamarin Test Cloud Evolve 2013 Microsoft Partnership 500,000 Developers 100+ Partners 100+ Components 201 4 // Xamarin 3 2000 SAP Partnership Fire TV Support Salesforce partnership Visionary in Gartner Magic Quadrant Google Glass Support Visual Studio Partner of the Year Android Wear Support Xamarin Evolve 2014 8 00,000 Developers 200+ Partners 200+ Components 2015 1 Million Developers IBM Partnership Visual Studio 2015 Support Oracle Partnership Apple Watch Support C# 6 Support 1,100,000 Developers 230+ Partners 3 00+ Components Xamarin Insights Xamarin University Xamarin.iOS Xamarin.Android Xamarin.Mac 2016 Microsoft Test Cloud Insights .NET & Mono MonoMac

17. Xamarin’s Unique Approach Shared C# codebase • 100% native API access • High performance iOS C# UI Windows C# UI Android C# UI Shared C# Code

18. Mono .NET Mono Under the Bonnet Hood iOS C# Windows C# Android C# Shared C# Code Parts of Mono being used (unused code linked away) runs natively on iOS User Interface Code (C#) Storyboards & XIBs Platform features ( eg iOS 9) Shared C# Code Business Logic Database (SQLite) Web services File operations UIKit PassKit etc SQLite NSUrlSession file system etc native UI iOS CocoaPods Obj -C libs “bindings”

19. 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.

20. Native Performance https://medium.com/@harrycheung/mobile-app-performance-redux-e512be94f976#. 5thv4hcj8

21. ✓ so why would I?

22. C# Now Runs on 2.6+ Billion Devices

23. Code Sharing Stats Mac iOS Android Windows Phone iCircuit Touch Draw

24. Xamarin v Xamarin.Forms Traditional Xamarin Approach With Xamarin.Forms : More code-sharing , still all native iOS C# UI Windows C# UI Android C# UI Shared C# Backend Shared UI Code Shared C# Backend

25. ✓ demo: Todo ( Xamarin.Forms )

26. ✓ one more thing…

27. xamarin.com /testcloud

28. craig@ xamarin.com conceptdev.blogspot.com @ conceptdev Sample Code github.com/ conceptdev / xamarin -samples > TaskyStoryboard (iOS) github.com/ conceptdev / xamarin - ios -samples > To9o (iOS ) github.com/ xamarin / xamarin -forms-samples > Todo ( Xamarin.Forms )

29. Craig Dunn Xamarin Microsoft craig@ xamarin.com conceptdev.blogspot.com @ conceptdev Thank you!