Here at the Xamarin Evolve conference in Atlanta, I just announced the immediate availability of MVVM Light V5. This version runs on the following platforms:
- Windows Presentation Foundation (3.5, 4, 4.5, 4.5.1)
- Silverlight (4 and 5)
- Windows Phone (7.1, 8, 8.1 Silverlight, 8.1 RT)
- Windows Store (8, 8.1)
- Xamarin Android
- Xamarin iOS
- Xamarin Forms
The MVVM Light Toolkit is a set of components helping people to get started in the Model - View - ViewModel pattern in Windows 8, Silverlight, WPF, Windows Phone, Xamarin Android and Xamarin iOS. It is a light and pragmatic framework that contains only the essential components needed. It includes classes such as RelayCommand, Messenger, ViewModelBase and ObservableObject, SimpleIoc and more.
The main purpose of the toolkit is to accelerate the creation and development of MVVM applications in WPF, Silverlight, Windows Store (RT) and for Windows Phone.
The MVVM Light Toolkit helps you to separate your View from your Model which creates applications that are cleaner and easier to maintain and extend. It also creates testable applications and allows you to have a much thinner user interface layer (which is more difficult to test automatically).
This toolkit puts a special emphasis on the "blendability" of the created application (i.e. the ability to open and edit the user interface into Blend), including the creation of design-time data to enable the Blend users to "see something" when they work with data controls.
My current workday MVVM framework of choice is Caliburn.Micro, but I keep seeing more and more projects using MVVM Light, to the point where I think I'm going to have to check it out... That and it's hard to beat how portable it is. :)