Xamarin is an open source app platform from Microsoft that allows developers to build high-performance, native iOS, Android, and other mobile apps using C# and .NET. It enables developers to maximize code reuse by sharing C# code across platforms while retaining full access to native platform APIs. Apps are compiled to native ARM code for high performance, while the shared code approach streamlines development. Xamarin includes features like Xamarin.Forms for cross-platform UIs and Xamarin.Essentials for accessing common device capabilities through a shared API.

2. Software drives more of the things we do every day.

3. New challenges
More devices Emerging platforms Data & intelligence

5. .NET

6. What is Xamarin?

7. An open source app platform
from Microsoft for
building modern & performant
iOS, Android, macOS,
watchOS, & tvOS apps with .NET.
Free & Included in Visual Studio Community Edition

9. App Development
With Xamarin

10. Productive environment
Maximize code reuse
Native performance & integrations
Expansive ecosystem

11. Visual Studio 2019

12. Visual Studio 2019 for Mac.NET Centric
Unity
Xamarin
Azure

13. Shared C#
Business Logic • Platform APIs • User Interface
Xamarin App Architecture
Shared C# codebase • 100% native API access • High performance
.NET
C# C# C#

15. MapKit UIKit SiriKit ARKit CoreML

16. Fingerprint Bluetooth Picture-in-Picture Geolocation NFC

17. Native performance
Xamarin.iOS Xamarin.Android
ARM
BINARY
Runs
natively
.APPAOT
.NET
C#
Bindings
.APKCompile
and Link
.NET
C#
Bindings
IL
+
JIT
Runs
natively
.NET
C#
Bindings

19. Xamarin App Architecture
Shared C#
Business Logic • Platform APIs • User Interface
.NET
C# C# C#

21. Xamarin.Essentials
aka.ms/xamarinessentials
Flashlight
Geolocation
Preferences
Device Info
Device Display Info
Secure Settings
Accelerometer
Battery
Clipboard
Compass
Connectivity
Data Transfer
Email
File SystemGeocoding
Gyroscope
Magnetometer
Phone Dialer
Screen Lock
Sms
Text to Speech
Vibration

23. Xamarin.Essentials: Cross-Platform Native APIs
Shared C#
Business Logic • User Interface
.NET
C# C# C#
Xamarin.Essentials

25. An open source mobile UI framework
from Microsoft for building
iOS, Android, & Windows apps with .NET
from a single shared codebase.

27. Xamarin.Forms: Cross-Platform Native UI
.NET
C# C#
Shared C#
Business Logic
Xamarin.Essentials
C#
Xamarin.Forms - UI

28. What’s included in Xamarin.Forms
✓ 40+ Pages, layouts, and controls
(Build from C# or XAML)
✓ Two-way data binding
✓ Navigation
✓ Visual State Manager
✓ Animation API
✓ Dependency Service
✓ Messaging CenterShared C#
Business Logic
.NET
C# C# C#
Xamarin.Essentials
Xamarin.Forms - UI

30. Original - Coinbase

31. Original - Quantas

33. Dribble - Mockup
https://www.thewissen.io/travel-broadens-the-mind/

34. Integrations

39. .NET

40. Get started today
xamarin.com

41. Thank you.
github.com/jamesmontemagno
James
Montemagno
Principal Program Manager – Mobile Developer Tools,
Microsoft
motz@microsoft.com Montemagno.com @JamesMontemagno
Weekly development podcast
mergeconflict.fm
Weekly development show
xamarinshow.com