.net 的跨平台UI框架——MAUI

原文：Introducing .NET Multi-platform App UI
github：https://github.com/dotnet/maui

MAUI 是 Xamarin.Forms 的进化（Xamarin.Forms 已经有6年历史了）。支持Model-View-ViewModel（MVVM）和Model-View-Update (MVU)等模式编写。
支持Android, iOS, macOS, and Windows（github上显示，支持Linux）
将于今年晚些时发布预览版。目标随 .NET 6 一起正式发布（2021年11月？）。

Milestones

.NET MAUI Preview 1 (Late 2020)

The first preview of .NET MAUI will be the first to take advantage of .NET 6 SDK features such as SDK style projects, build tools, and command line tools. We plan to also include:

Feature	Description	Status
Namespace changes to System.Maui	Xamarin.Forms will become System.Maui	Committed
Slim renderer architecture	Spec	Committed
Remove Obsoletes	Spec	Committed
Replace DependencyService	Spec	Proposed
Remove Pages		Proposed
Remove Themes		Proposed
Startup registry	Spec	Proposed

.NET MAUI Preview 2 (Early 2021)

Feature	Description	Status
Introduce a Cross-Platform Lifecycle	Spec	Proposed
Move "AndExpand" layout option	Spec	Proposed
Update min and max sizing implementations		Proposed
Implement GlideX	Spec	Proposed
Change IAnimatable	Spec	Proposed
Change Behavior and Trigger inheritance	Spec	Proposed
Replace Application.Properties	Spec	Proposed

.NET MAUI Preview 3 (Early 2021)

Feature	Description	Status
macOS Parity	Wiki	Committed

.NET MAUI Preview 4 (Mid 2021)

Feature	Description	Status
Windows Parity	Wiki	Committed

.NET MAUI Preview 5 (Mid 2021)

.NET MAUI Release Candidate (September 2021)

.NET MAUI General Availability (November 2021)

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Xamarin.Forms vs MAUI

	Xamarin.Forms	MAUI
Platforms
Android	API 19+	API 21+
iOS	9-14	10+
Linux	Community	Community
macOS	Community	Microsoft
Tizen	Samsung	Samsung
Windows	UWP Microsoft WPF Community	Microsoft
Features
Renderers	Tightly coupled to BindableObject	Loosely coupled, no Core dependencies
App Models	MVVM, RxUI	MVVM, RxUI, MVU, Blazor
Single Project	No	Yes
Multi-targeting	No	Yes
Multi-window	No	Yes
Misc
.NET	Xamarin.iOS, Xamarin.Android, Mono, .NET Framework, ...	.NET 6+
Acquisition	NuGet & Visual Studio Installer	dotnet
Project System	Franken-proj	SDK Style
dotnet CLI	No	Yes
Tools
Visual Studio 2019	Yes	Yes
Visual Studio 2019 for Mac	Yes	Yes
Visual Studio Code	No	Yes