Sviluppo x platform con xamarin
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The document discusses developing cross-platform applications with Xamarin. Xamarin allows sharing C# code across iOS, Android, and Windows platforms while using native user interfaces and APIs. Developers can write shared business logic in C# and build separate but optimized user interfaces for each platform. This avoids the need to write code for each platform separately and allows easy updates to shared code.
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Sviluppo x platform con xamarin
- 1. Sviluppo x-platform con Xamarin Dan Ardelean Mahiz Srl Email: dan@mahiz.it Twitter: @danardelean
- 3. iOS WindowsAndroid Objective-C Xcode C# Visual Studio Java Android Studio No shared code • Many languages & development environments • Multiple teams
- 4. App Generator Lua Javascript Actionscript HTML+CSS Limited native API access • Slow performance • Poor user experience
- 5. Shared C# codebase • 100% native API access • High performance iOS C# UI Windows C# UIAndroid C# UI Shared C# Mobile
- 6. .NET + C# + Bindings AoT .APP Native ARM Binary .NET + C# + Bindings Compile & Link ..APK IL + JIT = Native Android iOS Windows .NET + C# + Bindings Native Compile .APPX Native ARM/x86/x64 Binary
- 7. System.Data System.Windows System.Numerics System.Core System.ServiceModel System.Net System System.IO System.Linq System.Xml Microsoft.Phone Microsoft.Networking Windows.Storage Windows.Foundation Microsoft.Devices MapKit UIKit iBeacon CoreGraphics CoreMotion Text-to-speech ActionBar Printing Framework Renderscript NFC Windows iOS Android
- 10. 3 Native User Interfaces Shared App Logic iOS C# Windows C#Android C# Shared C# Logic
- 11. Shared User Interface Shared App Logic Shared C# Logic Shared UI Code
- 15. Xamarin is included in Visual Studio
- 16. Visual Studio for Mac (Preview) iOS, Android, & macOS .NET development .NET Core & ASP.NET Core Tools for Azure
- 19. Talks to a web service Parses a data format Works with a database Performs processing / business logic
- 20. UseHttpClient forRESTservices, can then process with System.Xml/ System.Json LINQ to XML Newtonsoft JSON.net component UseWCFor .asmx forSOAP
- 21. SQLiteincluded in iOS+ Android for local data storage can be added to WinPhone Can also store in the cloud – Azure Mobile Services, Amazon, Dropbox, etc.
- 23. What if we didn’t have to write this code? What if we could access it from shared code? UI+APIs UI + APIsUI + APIs Battery GPS Lights Notifications Settings Text To Speech Battery GPS Lights Notifications Settings Text To Speech Battery GPS Lights Notifications Settings Text To Speech
- 25. Common API
- 26. NuGet isapackage manager for .NETthat allows you to locate, install, update and remove shared components from your projects right in your IDE www.nuget.org
- 27. Several well-known patterns can be used tobreak dependencies and loosely- couple components together referred to as “Inversion of Control” (IoC) allow reusable components to call into platform-specific code (vs. the other way around) Locating Services – Inversion of Control Factory Servic e Pattern Locato r Dependenc y Injection
- 29. A/B Testing Live Update Storage Push Notifications Crash Reporting Remote Config. Identity Tables Visual Studio Mobile Center mobile.azure.com
- 30. Sviluppo x-platform con Xamarin Mahiz Srl Email: dan@mahiz.it Twitter: @danardelean
Hinweis der Redaktion
- So we know what we want how do we get there? Let’s talk about the state of mobile development.
- Multiple Teams Multiple Code Bases Expensive & Slow Positive = Great apps delivered to user’s platform Negative = Development hampered by multiple code bases & fragmentation
- Unhappy Users Unhappy Developers Increase in Abandoned Apps Limited to what is implemented
- With C#, used on over 2.6 billion devices, along core classes and access to platform UI, we can find a path to building for all platforms using the right tooling. CLICK – Windows For UWP, code is compiled in the cloud and made available for different CPU architectures through the Windows Store as .APPX packages. CLICK – iOS On iOS, C# code in compiled Ahead of Time, distributed as a .APP package and runs natively on Apple’s ARM-based devices. CLICK – Android With Android, C# compilation and linking results in a .APK file whereby intermediate language code is compiled just in time to run natively on the device.
- Here’s a base set of libraries made available as .NET classes through Xamarin on all platforms. Nuget Packages If all platforms have a common minimum service available then libraries written by others can be leveraged across all platform and sourced as Nuget packages Future This model isn’t perfect because the iteration of C# and the .NET classes provided are not up to date. .NET Standard 2.0 represents a possible future where an increased surface area may become available across a large number of devices. On top of this we add access to platform-specific APIs. CLICK – Windows Here’s a set of clearly Microsoft-centric APIs which are available. CLICK – iOS Equally, there are iOS features available. Specifically there is 100% coverage. CLICK – Android Also with Android, you’ll get 100% access. CLICK – All Anything you can do in Objective-C, Swift, or Java can be done from C# through Xamarin. Tizen OS Samsung has announced a preview of its tools using this approach which will open up C#/.NET development of 10s millions of additional devices.
- So we know what we want how do we get there? Let’s talk about the state of mobile development.
- Coming up next is bubbles
- The biggest surprise was the brand new Visual Studio for Mac! In preview today and is the next evolution of Xamarin Studio. Includes Azure Tools and .NET Core work loads. More in the future.