Anything you can do in Objective-C or Swift and XCode, you can do in C# with Xamarin for Visual Studio. Chris Van Wyk, Xamarin University mobile expert, shows how you can use your .NET skills to build fully native iOS apps — completely in C#. Watch webinar recording at https://aka.ms/xamuiosappvideo Explore Xamarin University at xamarin.com/university

2. university.xamarin.com

3. Microsoft: Your Complete Mobile Solution

4. What we will cover
Create an iOS app,
design the UI,
explore MVC
Build and run
on simulator
and device

5. Xamarin’s unique approach
Windows C# UI
Shared C# codebase • 100% native API access • High performance
iOS

6. What is Xamarin.iOS?
C# source Native performance
iOS

7. Xamarin.iOS execution
UNIX Kernel
Objective-C Runtime
iOS APIs
Mono Runtime
Binary
.NET
APIs
Your C#
compiled
to binary

8. Xamarin.iOS – 100% API coverage
MapKit UIKit iBeacon CoreGraphics CoreMotion
System.Data System.Collections System.Numerics System.Core System.ServiceModel
System.Net System System.IO System.Linq System.Xml
C#

9. Always up-to-date
Same-day support
for new iOS versions
iOS

10. Xamarin.iOS platform support
Supports all iOS devices

11. Open Source – open.xamarin.com

13. Develop on Mac or Windows
Microsoft Visual Studio
on Windows
Visual Studio for Mac
on macOS (preview)

14. Parts of the build
are done on the
networked Mac

16. • Multi-touch and pressure-sensitive
interaction
• Supports rotation, screenshots,
and location changes
• Performant
Remote iOS Simulator for Windows

19. iOS APIs are designed around the
Model-View-Controller (MVC) pattern
What is MVC?
Model
Controller
View
User Interface
Behavior
Data

20. The Model contains data, information and logic (business layer)
The Model
Calculation
Functions
Data Entities
Validation
Logic
Persistence
Logic
Processing
Logic
…

21. The View contains the visual components
the user sees and interacts with
The View

22. User
Action
The Controller is the moderator between the view and the model
The Controller
View Model
Update data
Notify
Update
UI
Controller

23. iOS
MVC in Xamarin
View
Model
Controller

24. MVC in Xamarin
View
Model
Controller
Model is
sharable
iOS

27. Xamarin.iOS UI is built from Apple’s controls and layout panels, wrapped in
C# by Xamarin
iOS UI

28. Using native controls gives a native look
and feel
Native UX

29. UI creation
C#Programmatically
for dynamic UIs
Visual Studio Designer
on Windows or macOS
Xcode Designer
on macOS

31. Get Started Today
xamarin.com/download

32. Free self-guided courses

33. Thank You
@chrisvwyk
chrvaw@microsoft.com

34. Q&A
Samples available at:
aka.ms/first-ios-with-xamarin