Xamarin Forms 4.x - What's new

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1. Xamarin Forms 4.x Overview of new UI features
2. Glenn Versweyveld @depechie Microsoft Developer Technologies MVP ( Xamarin ) https://github.com/Depechie
3. Xamarin architecture Shared C# Business Logic • Platform APIs • User Interface Shared C# codebase • 100% native API access • High performance .NET C# C# C#
4. Shared C# Business Logic Xamarin.Essentials Xamarin forms architecture .NET C# C# C# Xamarin.Forms - UI
5. Native performance 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. ARM BINARY Runs natively .APP AOT .APK Compile and Link .NET C# Bindings IL + JIT Runs natively .NET C# Bindings
6. Geolocation Geolocation Geolocation Compass Compass Compass Keystore Keystore Keystore Extra layer of functionality Shared C# Backend
7. Extra layer of functionality Shared C# Business Logic .NET C# C# C# Xamarin.Essentials Xamarin.Forms - UI
8. Xamarin.Essentials aka.ms/xamarinessentials Flashlight Geolocation Preferences Device Info Device Display Info Secure Settings Accelerometer Battery Clipboard Compass Connectivity Data Transfer Email File System Geocoding Gyroscope Magnetometer Phone Dialer Screen Lock Sms Text to Speech Vibration
9. Xamarin Essentials - https://docs.microsoft.com/en-us/xamarin/essentials/
10. - NuGet – Xamarin.Essentials - Android Setup: Getting started
11. Before: - Assemblies: 47 - APK Size: 22.7 MB After: - Assemblies: 35 - APK Size: 22.2 MB • Fully Linker Safe using [LinkerSafe] Attributes • Linking Always Happens • Link SDK Assemblies and Link All Assemblies • Case Study: GeoContacts App Getting started
12. Xamarin Essentials DEMO
13. Xamarin Visual - A set of Control renderers - Specially customized by Xamarin team to guarantee same look and feel - Material Visual : Renders controls with Google material guideline - Other visual renderers will follow - You can already create your own, by subclassing the base renderers - https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user- interface/visual/create
14. Xamarin Visual – Material Visual - Visual rendering applying Material Design from Google - Add the Xamarin.Forms.Visual.Material NuGet package - Consume the material renderers by setting the Visual property to Material on any pages that should adopt the Material Design rules - In addition, the Visual property can be overridden on a view - https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user- interface/visual/material-visual
15. Xamarin Visual – Material Visual DEMO
16. Xamarin CollectionView - Replaces ListView - Has new features and options - Vertical and horizontal list or grid rendering - Empty view, grouping - Still preview, so not all ListView features are yet available - Grouping marked as preview - Extra addition on top of CollectionView will be the CarouselView - https://devblogs.microsoft.com/xamarin/carouselview-xamarin-forms-4-3-prerelease/ - https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user- interface/collectionview/
17. Xamarin CollectionView DEMO
18. Xamarin Shell - Provides an opinionated navigation experience, based on flyouts and tabs. - The top level of navigation in a Shell application is either a flyout or a bottom tab bar, depending on the navigation requirements of the application - Includes a common navigation user experience - A URI-based navigation scheme that permits navigation to any page in the application - Allows queryParameters being added to the URI - An integrated search handler - Setup - Describe the visual hierarchy of the application - Done in a subclassed Shell class - https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/shell/
19. Xamarin Shell - advanced - Example repository – David Ortinau - https://github.com/davidortinau/Xappy - https://github.com/davidortinau/Gastropods - Example repository – Shane Neuville - https://www.youtube.com/watch?v=JpXVKnhPJ3I - https://github.com/PureWeen/SmartHotel360-Mobile
20. Xamarin Shell DEMO
21. Questions