Durante la conferenza Build, Microsoft ha presentato interessanti novità sullo sviluppo mobile e cross-platform. Alcune di queste riguardano gli sviluppatori iOS e Android, che avranno ulteriori strumenti a disposizione per aumentare la diffusione delle proprie app, riutilizzando il codice già scritto nativamente per queste due piattaforme (in Objective-C, Java, e magari in futuro anche Swift). Alla luce di queste novità, faremo il punto della situazione sullo sviluppo mobile, discutendo le strategie per scegliere quale tecnologia usare per la nostra prossima app, tra sviluppo nativo o con tool come Xamarin e Apache Cordova.

2. Disclaimer

6. More Platforms = More Opportunities

8. Growing Reach with Universal
Windows Apps
Windows Developer Platform
Improving User Engagement

9. Integrazione

10. Browser-based applications
Visual Studio tools for
Apache Cordova
Visual C++ for cross-platWin32
ObjC/Swift, Java, .NET/UWANative

12. Fast, x86 image built from AOSP
Runs on Hyper-V
Comes with Visual Studio
Speaks Android Debugging
Native capabilities and sensors
Zoom, Rotation, Network, Location, Accelerometer, Battery, OpenGL
SD Card, Camera, Audio playback, Keyboard Input, Screenshots,
Version and Screen Size Configurations, Drag&Drop APKs

13. Polita Paulus
Principal PM Manager
Getting Started with Cross-Platform Mobile Development with
Apache Cordova
2-706

14. Native Wrapper
<webview>
Your JavaScript App
Cordova Plugin JS API

15. • HTML, CSS, JS
• Assets
• HTML, CSS, JS, assets
• HTML, CSS, JS, assets
• HTML, CSS, JS, assets

16. :)

17. Black Box
Microsoft OSS contributions to Cordova:
• Cordova Browser Platform + Browser Support
for Top 30 Plugins
• Ripple, v2
• Cordova Windows Platform
• Cordova Test Infrastructure (MEDIC)
• Cordova CLI (--list, --save, --restore, --arch)
• Filling out the Plugin support matrix
• Hosted app support for File, Media Capture,
and Camera plugins

18. Template per:

19. Demo: Visual Studio Tools for Apache Cordova™

20. Run on Android and iOS

21. DOM Explorer

23. There is a general perception that apps built using
HTML, CSS, and JavaScript are slow.
(Hint: We are going to change that in this session)

24. 1. The Webview Tax
2. Document Object Model (DOM)
3. Images
4. Animation
5. Garbage Collection
6. UI Controls

25. #perfmatters
Methodology

27. Go Mobile with C#, Visual Studio and
Xamarin

29. Native compilation, native performance
Xamarin.iOS does full Ahead Of Time (AOT)
compilation to produce an ARM binary suitable
for Apple’s App Store
Xamarin.Android takes advantage of
Just In Time (JIT) compilation on the Android device

30. Shared C# codebase • 100% native API access • High performance
iOS C# UI Windows C# UIAndroid C# UI
Shared C# Mobile C# Server
Linux/Mono
CoreCLRAzure
Shared C# Client/Server

31. Shared C# or F# codebase • 100% native API access • High performance
iOS F# UI Windows F# UIAndroid F# UI
Shared F# Mobile F# Server
Linux/Mono
CoreCLRAzure
Shared F# Client/Server

32. Traditional Xamarin
Approach
With Xamarin.Forms:
More code-sharing, all native
iOS C# UI Windows C# UIAndroid C# UI
Shared C# Backend
Shared UI Code
Shared C# Backend

33. Xamarin.iOS e Xamarin.Android
vs
Xamarin Forms

34. Create UI with drag and drop simplicity
Target multiple screen sizes, resolutions,
and OS platform and versions
Layouts saved in native
resource formats
World’s best Android designer
available in Visual Studio
UI design iOS app designer in Visual Studio
Android app designer in Visual Studio

35. DESIGN – DEVELOP - INTEGRATE TEST MONITOR
LEARN

36. Xamarin Inspector

38. Salmaan Ahmed
- PM Windows
Jim Radigan
- Compiler Technologies
Compiling Objective-C
Using the Visual Studio 2015 C++ Code Generation that Builds
Windows, SQL, .Net, and Office
3-610

40. Growing Reach with Universal
Windows Apps
Windows Developer Platform
Improving User Engagement

41. Wherever your code was born, you can bring it to Windows
Middleware Platforms
Middleware Partners (e.g., Xamarin)
Game Engine Partners (e.g., Unity)
Other Mobile Platforms
‘Project A’ (Java/C++)
‘Project I’ (Objective C/C++)
Windows Platform
Universal Windows 8 Apps (C++/C#/JS)
Universal Windows 10 Apps (C++/C#/JS)
‘Project Centennial’ (Classic Apps)
Web Platform
‘Project Spartan’ Rendering Engine
Cordova Tooling (HTML/JS)
‘Project Westminster’ (Web Apps)
Universal Windows
Platform
XboxIoT
Universal
Windows Platform

42. Project Islandwood

43. Candy Crush Saga
Sviluppato originariamente per iOS, in
Objective-C

44. Write Universal Windows Apps in Objective-C
Objective-C language support
• Compiler and Runtime
Useful and usable APIs
• iOS API compat
Tools
• Editor / Workflow
• Project import

45. Xcode projects
imported to Visual
Studio
Shared project
settings, imported
from Xcode

46. Tooling
Integrated Visual Studio Development
Xcode projects
imported to
Visual Studio
Integrated
language
support:
syntax
highlighting,
autocomplete
Full
debugging:
breakpoints,
stack traces, …
Universal API
Interop

47. Project Islandwood

48. • You are writing a Windows App
• With ObjC as a supported lang
• Interop with Universal API surface
• And reuse code that uses some
iOS APIs
Quindi

49. Works across Win10 devices
Deploy to more devices
Across multiple form-factors
Running ARM and x86/64 CPUs

50. API Compatibility
Supports a subset of iOS
APIs
Does not track a
particular version of iOS
Most used APIs are
implemented first
• Games: OpenGL (ANGLE,
CAEAGLLayer, EAGLContext),
OpenAL, Sensors
• UI: UIKit, CoreAnimation,
CoreGraphics, CoreText, Touch
• Objective-C: ARC, blocks
• Foundation / CoreFoundation
• Services: StoreKit, Social,
Notifications, …

51. Windows does the heavy lifting for you
We translate and redirect iOS concepts to Windows concepts
User experience Monetization services Platform
Windows 10

52. Proven compatibility
Candy Crush Saga: Brought to Windows
Phone with very few code changes
Interop used for native integration
• In-App Purchase
• Local Notifications

53. Next Steps
Rolling out the SDK over the summer
http://aka.ms/islandwood

54. John Justice, Director of Program Management, OSG
Rajesh Sundaram, Director of Software Engineering, OSG
2-702

55. XboxIoT
Universal
Windows Platform
Middleware Platforms
Middleware Partners (e.g., Xamarin)
Game Engine Partners (e.g., Unity)
Windows Platform
Universal Windows 8 Apps (C++/C#/JS)
Universal Windows 10 Apps (C++/C#/JS)
Project Centennial (Classic Apps))
Web Platform
Microsoft Edge HTML Engine
Cordova Tooling (HTML/JS)
Hosted Web Apps (HTML/JS)
Other Mobile Platforms
Project Astoria (Java/C++)
Project Islandwood (Objective C/C++)
Other Mobile Platforms
Project Islandwood
Project Astoria
Use your Java / C++ code
Use Android IDE
High code reuse
Use your Objective C code
Use Visual Studio
Medium-high code reuse
Wherever your code was born, you can bring it to Windows

56. Windows app built from Android code

57. Apps built with Project Astoria are Windows apps
Users acquire apps built with Project
Astoria through the Windows Store
User experience
Cloud services
Platform

58. Apps built with Project Astoria are Windows apps
v/sv/sv/s
User experience
Cloud services
Platform

59. Building a Windows app with "Project Astoria”

60. We translate and redirect Android concepts to Windows concepts
User experience Cloud services Platform
• Acquisition
• Input and interaction
• App-to-app interactions
• Windowing & navigation
• Notifications and live tiles
• …
• In-App Purchases
• Ads
• Maps
• Game Services
• Analytics
• Notification service
• …
• File system
• Contacts, photos,…
• Sensors
• Camera
• Hardware accelerated
graphics & Direct X
• …

61. Microsoft Services
AppInsights
MS Ads
In-app Purchases
Windows Notification Service
Xbox Live Services
Bing Maps
Windows Location services
…
• Project Astoria SDK in Java
• Use Microsoft services with minimal
code change
• Get Started in Dev Center
Windows apps built with Project Astoria use Microsoft cloud services
User experience
Cloud services
Platform

62. Android platform capabilities are redirected to Windows
• File system
• Contacts, photos,…
• Sensors
• Camera
• Hardware accelerated graphics &
Direct X
• Networking/sockets
• Application lifecycle
• Resource management
• Background execution model
• Security model
User experience
Cloud services
Platform

63. Visual Studio 2015

64.  Windows 10 Mobile Only
+
Your Android Code
(Project Astoria SDK & App analysis)
+
Your app in the
Windows Store
Your IDE
(Project Astoria Plugins)
Your dev
machine
Build a Windows app with your Android code
+
Windows
Magic
Live tiles
…
IntelliJ
Android
Studio
Eclipse
Windows
Mac

65. Learn more about Project Astoria at
http://aka.ms/projectastoria

66. Building Cross-Platform Mobile Apps in
C++ with Visual Studio 2015

68. C++ C++C++
• Code Reuse
• Performance
• Security

69. .appx .apk .ipa
C#, C++/Cx Java
Dex / ART
ObjC
Swift
Dynamic Link
Library (.dll)
Static Library (.lib)
Dynamic shared
library (.so)
Static library (.a)
Static library (.a)
Shared C++ backend is compiled as:
DropBox

71. • 80%

72. C++
• Facebook Messenger
• Facebook
• Pandora
• Clean Master
• Go Keyboard
• Instagram
• SnapChat
• Super-Bright LED
• Candy Crush Soda
• Spotify
• CrossRoads
• Netflix
• Subway Surfers
• Kik
• WhatsApp Messenger
• Skype
• Clash of Clans
• Jelly Jump
• DubsMash
• Temple Run 2
• Surgery Simulator
• Pinterest
• Candy Crush Saga
• CM Security Antivirus
• Trivia Crack
• Zedge Ringtones
• Apus Launcher
• Bingo Crush
• Amazon Shipping
• Texas Holdem
• ZigZag
• 8 ball pool
• Yahoo Mail
• Game of War
• Despicable Me
• Fast and Furious Legacy
• Five Nights at Freddy’s
• Sound Cloud – Music and Audio
• iHeart Radio
• Twitter
• Fruit Ninja Free
• The Weather Channel
• Flow Free 2
• Minicraft
• Magic Piano
• ooVoo video call
• Solitare
• Wish Shopping Made Fun
• Google Earth
• Angry Birds

74. Compilers Visual C++ Compiler
GCC
Clang/LLVM
Clang/LLVM
Build Engine MSBuild, Nmake
NDK Build, Make files,
Gradle, Ant
Xcode Build
IDE(s) Visual Studio Eclipse CDT Xcode
Host Platform Windows 8/8.1/10
MacOS X, Linux,
Windows
Mac OS X
Development tools for C++ cross-platform

75. Office su mobile

76. Visual Studio 2015

77. Demo 1: Developing for the Android Platform

78. Demo 2: Building a C++ cross-platform mobile application

79. Demo 3: Debugging an existing Android Application
blog

80. Demo: Visual C++ for Cross Platform Mobile Development

81. • VS Tools for Apache Cordova
• Xamarin
• Project Islandwood:
• Objective-C => UWA
• Esempio: Candy Crush su WP
• Editor: Visual Studio
• Project Astoria:
• Java => UWA
• Editor: Eclipse, Android Studio, …
• C++ Crossplatform
• Esempio: Office su iOS e Android
• Editor: Visual Studio
Recap

82. Go Mobile!
Login, sync data, and connect to enterprise APIs with
Azure App Service

83. RESTAPI
Offline
sync
Facebook Twitter Microsoft Google Azure Active
Directory
Windows
iOS
Android
HTML 5/JS
Xamarin
PhoneGap
Sencha
WindowsAndroid
Chrome
iOS
OSX
In-AppKindle
Backend code
SQL MongoTables O365 API Apps
Offline Sync

85. Visual Studio 2015

87. Richard diZerega (@richdizz)
http://www.richdizz.com
Principal Software Engineer - Microsoft
Overview of Cross-Platform Mobile Development with
Office 365
2-655

90. Cross-platform localization with the
Multilingual App Toolkit

91. Visual Studio 2015