Xamarin introduction
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Presented in Meetup Event https://www.meetup.com/fr-FR/CasablancaMobileDevelopers/events/237067514/
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Xamarin introduction
- 1. Introduction to mobile development with Xamarin Anas EL HAJJAJI Casablanca Mobile .NET Developers Group CasablancaMobileDevelopers Saturday, Feb 11th, 2017
- 2. What do I need to deliver a great mobile app?
- 3. What do I need to deliver a great mobile app? Study • Know Target OS (Android, iOS, Windows Phone …) • Choose the architecture (hybride, native …) • Choose the framework (Ionic, phonegap, Sencha, Xamarin ...) • Company culture & technology learning curve • Budget
- 4. What do I need to deliver a great mobile app? Development • Up to date SDK ■ Programming Language ■ IDE with UI Previewer and debugging possibility ■ Great documentation • Third party libraries • Active community (Github, Stack Overflow …) • Backend
- 5. What do I need to deliver a great mobile app? Test • Unit Tests & Integration Tests • UI Tests Build & Distribute • Continuous Integration (CI) • Continuous Delivery (CD) Monitor • Crash reports & Analytics
- 7. What’s Xamarin? • Founded in May 2011, acquired by Microsoft in February 2016 • Native iOS, Android, Mac and Windows Mobile App development platform • C# 6 as development language, initially based on Mono • Same day support and always up to date • Native characteristics ■ Native User Interface ■ Full SDK Access ■ Native Performance
- 8. “Xamarin's architectural approach provides completely native UIs with better performance than other cross-platform techniques… Xamarin uses multifaceted technology built by a cohesive team with a solid long-term track record.” Name Title and Company Gartner Strongly Endorses Xamarin Technology Gartner August 2013
- 9. What’s Xamarin? Complete Mobile Solution
- 10. Anything you can do natively you should be able to do with Xamarin.
- 12. Develop Traditional Approach iOS C# UI Windows C# UIAndroid C# UI Shared C# Mobile
- 13. Develop Xamarin.Forms Approach Shared C# Mobile Shared UI Code
- 14. Develop Xamarin.Forms Approach Shared C# Mobile Shared UI Code • 40+ pages, layouts and controls • Two-way data binding • Navigation • Animation API • Dependency Service • Messaging Center
- 16. Develop Code in C# 6 • LINQ Support • Events & Delegates • Lambda expressions • Async/await to make asynchronous programming pleasant • Easy XML & JSON manipulation
- 17. Develop Android APIs Text-to-speech ActionBar Printing Framework Renderscript NFC System.Data System.Windows System.Numerics System.Core System.ServiceModel System.Net System System.IO System.Linq System.Xml
- 18. Develop iOS APIs System.Data System.Windows System.Numerics System.Core System.ServiceModel System.Net System System.IO System.Linq System.Xml MapKit UIKit iBeacon CoreGraphics CoreMotion
- 19. Develop Windows APIs System.Data System.Windows System.Numerics System.Core System.ServiceModel System.Net System System.IO System.Linq System.Xml Microsoft.Phone Microsoft.Networki ng Windows.Storage Windows.Foundati on Microsoft.Devices
- 29. Free 30 Day Trial - xamarin.com/university Unrivaled Mobile Development Training Live unlimited mobile development training from mobile experts, in your time-zone, on your schedule, and as often as you'd like.
- 30. And what if I already have a native library, do I need to rewrite it?
- 32. Test Challenges • Device Fragmentation • App Complexity • Fast Release Cycles • Short Sessions • High Mobile User Expectations
- 33. Test Quality is Hard • 5 OS • 20 Versions • 20 Devices • 35 Languages • 6 Locales • Screen sizes • 9 OS versions • 19k+ Distinct devices • 39 Languages • 57 Locales • 27 Screen sizes • 15 Manufacturers • 6 Screen configurations
- 36. Test App Complexity Thousands of iOS and Android APIs Public web APIs Backend integrations Third party libraries Memory, CPU and network constraints
- 37. Tap Scroll Swipe Pinch Multi Finger Text Entry Rotation GPS
- 40. GUIDELINES – DO NOT USE SLIDE
- 42. Build Visual Studio Team Services
- 43. Build Visual Studio Team Services (Build)
- 44. Build Visual Studio Team Services (Test)
- 45. Build Visual Studio Team Services (Release)
- 48. Thank You! Questions? Anas EL HAJJAJI Casablanca Mobile .NET Developers Group anas.elhajjaji@gmail.com @anaselhajjaji
- 49. We’re here to help @CasaMobileDev CasablancaMobileDevelopers@gmail.com https://www.meetup.com/fr-FR/CasablancaMobileDevelopers/ https://www.facebook.com/CasaMobileDev https://plus.google.com/b/111408795852981067165
Editor's Notes
- Who has a smartphone? Tablet? Android? iOS? Windows Phone? Studies shown that we use between 5-20 max, store size 3m, how many applications you use each day? Max 5, max 10, max 20? How my application be on the top 10 / 3m store apps. In the past, some bad misconceptions: use ijetty and develop a web app. Forget about web dev background, desktop dev background. Concentrate on mobile dev, different industry, different constraints. Who can answer the question?
- What makes up a “Native” mobile application? I am sure you have heard the “native” thrown around, but what does that really mean? A native app needs a lot of things, but three important ones stick out: Native User Interface: Apps need to look and act correct per platform. Full SDK Access: As a developer we need to add the latest and greatest features Native Performance: Needs to be fast and fluid Apple has a developer preview where Xamarin has alphas ready. Google does not offer this. Android versions are usually 4 to 8 weeks out for a stable release, but alphas and betas are usually earlier. Xamarin realizes how important having iOS ready because within 24 hours a large portion of iOS users upgrade Android on the other hand is much different. After 4 months on the market Android 4.4 only had 1% adoption
- You may not use the photo of Jessica; find your own quote author photos. Photo chang: PowerPoint doesn’t support drawing mask tools, so you need to send us your profile photo when you edit your slides. We will edit your photo for you! serena.zhang@xamarin.com
- Xamarin is your complete mobile solution. Xamarin Platform is usually what you hear about which is building native iOS, Android, Mac, and Windows Apps all in C# However Xamarin offers a wide range of products for developers to go mobile including Test Cloud, Hockey App, and a way to learn all of mobile with University.
- In a projet I developped in native: android, ios I did X, can I do it with Xamarin?
- UI build natively per platform, leveraging C# C# + XAML C# + XML C# + XIB One shared app logic code base, iOS, Android, Mac, Windows Phone, Windows Store, Windows
- Xamarin recently introduced Xamarin.Forms a new library for cross platform user interface. We will touch up on this later, but this enables you to be highly productive, share code, but build out UI on each platform and access platform APIs. With Xamarin.Forms you now have a nice Shared UI Code layer, but still access to platform APIs You can start from native, pick a few screens, or start with forms, and replace with native later
- Xamarin Studio on Mac offers: Android, iOS and Mac development World Class IDE with great features: Code Analysis Upload to Test Flight Git & Subversion Integration Code Completion Code Navigation Easy transition from Visual Studio The same Solution & Projects open in BOTH Xamarin Studio and Visual Studio!
- OpenSignal is a global app that publishes an annual report on Android device fragmentation based on the distinct Android device types that download their app. This is their August 2015 data, with an astonishing 24,000 device types using their app, up by 60% from just last year. Different device operating systems, form factors, screen sizes, resolutions, chip sets, and manufacturer modifications make it difficult to know that your app will work well on all devices https://opensignal.com/reports/2015/08/android-fragmentation/