1. Xamarin: The Future of Mobile Development
BRK3284
Xamarin: The Future of Mobile Development
James Montemagno
Principal Program Manager
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

2. Who’s this guy? Weekly development podcast mergeconflict.fm
Weekly development show
xamarinshow.com
James
Montemagno
Principal Program Manager – Mobile Developer Tools, Microsoft

3. 4/19/2018 6:11 AM
What is Native?
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

4. Native User Interfaces
4/19/2018
Native User Interfaces
Native API Access
Native Performance
© 2014 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5. Architecting Mobile Apps
4/19/2018 6:11 AM
Architecting Mobile Apps
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

6. Silo approach
iOS
Android
Windows
Objective-C/Swift
Xcode
Java
Android Studio C#
Visual Studio
No shared code • Many languages and development environments • Multiple teams

7. Write once, run anywhere
4/19/2018
Write once, run anywhere
App generator
Lua
Javascript
Actionscript
HTML+CSS
Limited native API access • Slow performance • Poor user experience
© 2014 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

8. Xamarin’s unique approach
Build 2015
4/19/2018 6:11 AM
Xamarin’s unique approach
iOS C# UI
Android C# UI
Windows C# UI
Shared C# logic
Shared C# codebase • 100% native API access • High performance
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

9. How Xamarin Works 4/19/2018 6:11 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

10. C# Windows APIs Microsoft.Phone Windows.Storage Microsoft.Devices
Microsoft.Networking
Windows.Storage
Windows.Foundation
Microsoft.Devices
System.Net
System
System.IO
System.Linq
System.Xml
System.Data
System.Windows
System.Numerics
System.Core
System.ServiceModel C#

11. C# iOS – 100% API coverage Build 2015 4/19/2018 6:11 AM MapKit UIKit
iBeacon
CoreGraphics
CoreMotion
System.Net
System
System.IO
System.Linq
System.Xml
System.Data
System.Windows
System.Numerics
System.Core
System.ServiceModel C#
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

12. Android – 100% API coverage
Build 2015
4/19/2018 6:11 AM
Android – 100% API coverage
Text-to-speech
ActionBar
Printing Framework
Renderscript
NFC
System.Net
System
System.IO
System.Linq
System.Xml
System.Data
System.Windows
System.Numerics
System.Core
System.ServiceModel C#
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

13. 4/19/2018 6:11 AM
User Interface
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

14. Xamarin.Forms- Cross Platform UI
Shared C# Logic
Shared UI Code
Shared Native User Interface Shared App Logic

15. Xamarin Live Player
Continuously deploy & debug apps

16. Xamarin Live Player Setup

18. Demo Xamarin Live Player 4/19/2018 6:11 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

19. Xamarin Native – Traditional UI
iOS C#
Windows C#
Android C#
Shared C# Logic
3 Native User Interfaces Shared App Logic

20. Native performance .APP .APK
ARM BINARY
Runs natively
.APP
AOT
.NET C#
Bindings
IL + JIT
Runs natively
.NET
Compile and Link
.APK C#
Bindings
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.

21. ✓ Always up-to-date Same-day support: Full support for: Apple Watch
iOS 5
iOS 6
iOS 7
iOS 8
iOS 9
iOS 10
iOS 11
Full support for:
Apple Watch
Apple TV
Android Wear
Amazon Fire TV
Google Glass
and much more

22. Code sharing stats iCircuit Touch Draw Evolve App (Xamarin.Forms)
Android
Code sharing stats
iOS
Mac
Windows

23. included in Visual Studio
Xamarin Platform is
included in Visual Studio
Including Community Edition

24. Visual Studio
Visual Studio for Mac

25. Open Source – open.xamarin.com

26. 4/19/2018
Anything you can do in Objective-C, Swift, or Java can be done in C# with Xamarin
© 2014 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

27. Demo Xamarin End-to-End 4/19/2018 6:11 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

28. Xamarin + Xamarin.Forms
iOS C# UI
Windows C# UI
Android C# UI
Shared C# Logic
Shared C# Logic
Xamarin.Forms
Traditional Xamarin approach
With Xamarin.Forms: More code-sharing, all native

29. What’s included Shared C# Logic ✓ 40+ Pages, layouts, and controls
Shared UI Code
✓ 40+ Pages, layouts, and controls
(Build from code behind or XAML)
✓ Two-way data binding
✓ Navigation
✓ Animation API
✓ Dependency Service
✓ Messaging Center

30. Native UI from shared code
<?xml version="1.0" encoding="UTF-8"?>
<TabbedPage xmlns="
xmlns:x="
x:Class="MyApp.MainPage">
<TabbedPage.Children>
<ContentPage Title="Profile" Icon="Profile.png">
<StackLayout Spacing="20" Padding="20"
VerticalOptions="Center">
<Entry Placeholder="Username"
Text="{Binding Username}"/>
<Entry Placeholder="Password"
Text="{Binding Password}"
IsPassword="true"/>
<Button Text="Login" TextColor="White"
BackgroundColor="#77D065"
Command="{Binding LoginCommand}"/>
</StackLayout>
</ContentPage>
<ContentPage Title="Settings" Icon="Settings.png">
<!-- Settings -->
</TabbedPage.Children>
</TabbedPage>

31. Embedding Shared C# Logic Xamarin.Forms Works on ContentPages
Full support for DependencyService and MessagingCenter
Xamarin.Forms
iOS C#
Android C#
Windows C#
Shared C# Logic
© Microsoft Corporation. All rights reserved.

32. Demo Xamarin.Forms Embedding 4/19/2018 6:11 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

33. 4/19/2018 6:11 AM
The Future
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

34. Learn More At our Xamarin.Forms talk Xaml Standard Fast Renderers
Microsoft Build 2017
4/19/2018 6:11 AM
Learn More
At our Xamarin.Forms talk
Xaml Standard
Fast Renderers
URL navigation with AppLinks
Memory Reduction
Enhanced theming and styling
Startup Performance Improvements
Embedding native controls into Forms apps
XAMLC performance improvements
Improved and extended GestureRecognizers
New Platforms
Support .NET Standard
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

35. Highlights Beyond the Line of Business New Platforms Forms Embedding
Microsoft Build 2017
4/19/2018 6:11 AM
Highlights
Beyond the Line of Business
New native capabilities
Reduced memory usage, improved performance
New Platforms
Going beyond mobile (Android, iOS, Tizen, UWP)
Desktop: macOS, Linux and WPF.
Forms Embedding
Embed single pages into a native host.
Android, UWP and iOS.
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

36. Xamarin & Xamarin.Forms ecosystem

37. Fundamental Improvements
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

38. Our proud tradition Native-first
Microsoft Build 2017
4/19/2018 6:11 AM
Our proud tradition
Native-first
Anything you can do with Java, ObjC or Swift you can do in Visual Studio with C# or F#
Same-day releases for new platform capabilities
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

39. Third Party Native APIs made Easy
4/19/2018 6:11 AM
Third Party Native APIs made Easy
Android:
Java Binding Projects
iOS:
ObjC Binding Projects
New! CocoaPods Importer
Upcoming
SwiftNetifier – project and consume Swift APIs into .NET
Fully automated
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

40. Apple—extensions Extensions are everywhere Mac and iOS
Microsoft Build 2017
4/19/2018 6:11 AM
Apple—extensions
Extensions are everywhere
Mac and iOS
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

41. Extensions and Runtimes
Microsoft Build 2017
4/19/2018 6:11 AM
Extensions and Runtimes
Main App
Extension #1
Extension #2
Xamarin
Runtime
Xamarin
Runtime
Xamarin
Runtime
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

42. Sharing code Last Year Now Main App Extension #1 Extension #2 Main App
Microsoft Build 2017
4/19/2018 6:11 AM
Sharing code
Last Year
Now
Main App
Extension #1
Extension #2
Main App
Extension #1
Extension #2
Xamarin
Runtime
Xamarin
Runtime
Xamarin
Runtime
Xamarin
Runtime
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

43. Visual Studio for Mac iOS, Android, & macOS .NET development
Included with your Visual Studio subscription at no additional cost
Visual Studio for Mac
iOS, Android, & macOS
.NET development
.NET Core & ASP.NET Core
Docker
Unity
Tools for Azure
Azure Functions
Free Community Edition
Available today!

44. Visual Studio for Mac IntelliSense Powered by Roslyn
Powerful Refactoring
Connected App Templates
Multi-process Debugging
TextMate Bundles

45. .NET in Every Application
4/19/2018 6:11 AM
.NET in Every Application
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

46. .NET .NET Everywhere .NET Everywhere .NET STANDARD LIBRARY
Microsoft Connect 2016
4/19/2018 6:11 AM
.NET
Everywhere
Device native
.NET
Cloud native
.NET Everywhere
.NET STANDARD LIBRARY
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

47. .NET Standard

48. IoT Stack Libraries for message queues: MQTT AMQP
Connect to Azure IoT Hub
Deployment Model
Every major Linux architecture
Self-contained
Remote debugging
Remote deployment

49. Native Clients in C#: Mobile, Mac, & Windows
Microsoft Build 2017
4/19/2018 6:11 AM
Native Clients in C#: Mobile, Mac, & Windows
.NET goes to every single client platform
Android C#
iOS C#
tvOS C#
macOS C#
Linux C#
Windows C#
Web
Shared C# Logic
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

50. There are existing codebases in ObjC, Java, Swift, C++.
Microsoft Build 2017
4/19/2018 6:11 AM
There are existing codebases in ObjC, Java, Swift, C++.
How could you reuse all the .NET greatness there?
All those amazing libraries
All the NuGets
No need to start from scratch
Easy migration
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

51. Turns any .NET library into a native library
Microsoft Build 2017
4/19/2018 6:11 AM
Turns any .NET library into a native library
Android Java
iOS Swift
tvOS Swift
macOS Objective-C
Linux C++
Jar/Aar
DynamicLib
Framework
Framework
C++
Shared C#/.NET Logic
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

52. Demo Embeddinator-4000 4/19/2018 6:11 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

53. 4/19/2018 6:11 AM
Video
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

54. Alaska Airlines brings consumer UX to 15K+ employees
4/19/2018 6:11 AM
Alaska Airlines brings consumer UX to 15K+ employees
Mobile-only, cloud-first approach
”Best Airline Staff in North America 2017” award winner, among dozens of others
Automates mobile lifecycle to ship new features quickly
Visual Studio Tools for Xamarin, Azure, Xamarin Test Cloud, HockeyApp, Visual Studio Team Services
Empower employees
Optimize operations

55. Mobilizing people and processes to drive revenue
4/19/2018 6:11 AM
Mobilizing people and processes to drive revenue
Gives teams anytime, anywhere access to customer data
Reduces manual, paper-based ordering
Faster contract approval and deal turn-around time
Engages customers with interactive proposals
Visual Studio Tools for Xamarin, Azure, Visual Studio Team Services
Engage customers
Empower employees
Optimize operations

56. Free self-guided courses
Take free self-guided courses that cover the core Xamarin concepts and count towards certification.
Register at: university.xamarin.com/self-guided
Get a full subscription for live classes, advanced topics, and to complete certification. Sign up at: xamarin.com/university

57. Call to action Get started: xamarin.com/download
Watch our Xamarin.Forms presentation (BRK3282)
Embeddinator:
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

58. Please evaluate this session
Tech Ready 15
4/19/2018
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© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

59. 4/19/2018 6:11 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.