Today we are excited to announce the availability of .NET Multi-platform App UI (.NET MAUI) Release Candidate. The SDK is now API complete, ready for libraries to update and make ready for GA (general availability) compatibility. As with other .NET release candidates, this release is covered by a “go live” support policy, meaning .NET MAUI is supported by Microsoft for your production apps.
Get Started Today
To acquire .NET MAUI RC1, install or update Visual Studio 2022 Preview to version 17.2 Preview 3. In the installer confirm .NET MAUI (preview) is checked under the “Mobile Development with .NET workload”.
To use .NET MAUI RC1 on Mac, follow the command line instructions on the wiki. Support for .NET MAUI in Visual Studio 2022 for Mac will ship formally in a future preview.
Release Candidate release notes are on GitHub. For additional information about getting started with .NET MAUI, refer to our documentation, and the migration tip sheet for a list of changes to adopt when upgrading projects.
Jump start your journey with the .NET Podcasts app (pictured above) which runs on Android, iOS, macOS, and Windows, and showcases both native app UI as well as Blazor Hybrid. Looking for a full workshop on how to get started with .NET MAUI? We have you covered with our newly released .NET MAUI workshop where you will build an app from start to finish and integrate native features.
What about Xamarin support? The Xamarin Support Policy is still in effect which covers those products for 2 years after initial release. The last release was November of 2021, and so support will continue through November 2023.
What’s in the .NET MAUI release candidate?
As a multi-platform app building framework, .NET MAUI leverages platform SDKs for Android, iOS, macOS, and Windows. These foundational pieces are included in this release, and you can use them directly with C# in addition to maximizing your code sharing and productivity with .NET MAUI.
.NET MAUI ships with 40+ layouts and controls optimized for building adaptive UIs across both desktop and mobile platforms. You can also incorporate Blazor components or entire Blazor applications to distribute the same experiences on desktop and mobile as you may today on web.
How does this compare to Xamarin.Forms? You get every UI control that ships with Xamarin.Forms, plus new controls such as BlazorWebView, Border, GraphicsView, MenuBar, Shadow, and Window.
| Layouts | CarouselView | Line | Stepper |
| AbsoluteLayout | Checkbox | ListView | SwipeView |
| BindableLayout | CollectionView | Path | Switch |
| FlexLayout | ContentView | Picker | TableView |
| GridLayout | DatePicker | Polygon | TimePicker |
| HorizontalStackLayout | Editor | Polyline | WebView |
| StackLayout | Ellipse | ProgressBar | Pages |
| VerticalStackLayout | Entry | RadioButton | ContentPage |
| Views | Frame | Rectangle | FlyoutPage |
| ActivityIndicator | GraphicsView | RefreshView | NavigationPage |
| BlazorWebView | Image | RoundRectangle | TabbedPage |
| Border | ImageButton | ScrollView | Shell |
| BoxView | IndicatorView | SearchBar | |
| Button | Label | Slider |
These are all documented in addition to related topics such as:
- Animation
- Brushes for solid and gradient colors
- Displaying Pop-ups
- Graphics for making the most of
Microsoft.Maui.Graphicswith blend modes, colors, canvas drawing, images, transforms, winding modes, and more - Shadows
- Styling with XAML and CSS
- Theming for light and dark modes
- Visual States
The new .NET MAUI project template now includes a default stylesheet in “Resourcesstyles.xaml” with a color palette and styling for all the controls. Take for example the Entry. When starting a new application these text inputs will now begin with a shared theme while still being true to the platform on which it runs.
<Style TargetType="Entry">
<Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource Black}, Dark={StaticResource White}}" />
<Setter Property="FontFamily" Value="OpenSansRegular"/>
<Setter Property="FontSize" Value="14" />
<Setter Property="PlaceholderColor" Value="{AppThemeBinding Light={StaticResource LightGray}, Dark={StaticResource DarkGray}}" />
<Setter Property="VisualStateManager.VisualStateGroups">
<VisualStateGroupList>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<VisualState.Setters>
<Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource Black}, Dark={StaticResource White}}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Disabled">
<VisualState.Setters>
<Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource LightGray}, Dark={StaticResource DarkGray}}" />
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateGroupList>
</Setter>
</Style>For views that support different states we’ve created a sensible default, and provided light and dark mode color options. For more information check out:
Customizing Controls
One of the things .NET MAUI does to improve upon the Xamarin.Forms architecture is adding low-code hooks to modify just about anything. Let’s consider the canonical example of removing the distinctive Android underline on an Entry field. How might you go about doing this when there is no multi-platform style for “underline” because it only exists on Android?
#if ANDROID
Microsoft.Maui.Handlers.EntryHandler.Mapper.ModifyMapping("NoUnderline", (h, v) =>
{
h.PlatformView.BackgroundTintList = ColorStateList.ValueOf(Colors.Transparent.ToPlatform());
});
#endifThat’s all the code there is. This code just needs to run somewhere in the start of your application before the handler is called.
Let’s explain what is going on here. Firstly, the #if ANDROID is a conditional compilation directive that indicates this code should only run for Android. In other cases where you are modifying the control for ALL platforms, this isn’t necessary.
Next, we need need access to the control. The Entry you use is a .NET MAUI control. Each property, command, event, etc. of the Entry is “mapped” by a “handler” to a platform implementation. To modify a mapping you can tap into it via the handler’s map such as Microsoft.Maui.Handlers.EntryHandler.Mapper. From the mapper we have 3 methods:
PrependToMappingwhich runs before the .NET MAUI codeModifyMappingwhich runs instead of the .NET MAUI codeAppendToMappingwhich runs after the .NET MAUI code
For this case it doesn’t matter which one we use, as it will be called at least once, and no other implementation on the Entry will touch the native properties we need to modify. Here the coded uses ModifyMapping and adds an entry called “NoUnderline”. Typically the property matches the name of an actual property, however in this case we are introducing a new one.
The h in the action is the handler which gives us access to the PlatformView which in this case is of Android type TextView. At this point the code is working directly with the Android SDK.
With the underline now out of the way, you can implement your own design of, say, a bordering box like old-school Windows Phone.
<Border Stroke="{StaticResource Black}"
StrokeThickness="2"
StrokeShape="Rectangle">
<Entry
Margin="20,4"
Placeholder="Username" />
</Border>For more examples on how you can easily modify the look and feel of controls at the cross-platform as well as platform specific layers, check out the documentation for customizing controls.
We need your feedback
Install the latest preview of Visual Studio 2022 for Windows (17.2 Preview 3) following our simple guide and build your first multi-platform application today.
We’d love to hear from you! As you encounter any issues, file a report on GitHub at dotnet/maui.
Hi !!
Any progress with not having to maintain 2 instances of Visual Studio 2022 in PRODUCTION machines?
When are you going to release a version to work with Visual Studio 2022 RTM?
We are almost in June !!
Thanks.
Hello everyone, it is possible to use a local web api from a maui project, I have been using the api in this way but I can’t get the api information
builder.Services.AddHttpClient(client => { client.BaseAddress = new Uri("http://10.0.2.2/"); });Hi. Good job 🙂
We have 2 Xamarin Forms Apps in Production with a lot of screen. Any news about the NET Upgrade Assistant ?
Here https://docs.microsoft.com/en-us/dotnet/maui/get-started/migrate#port-an-app-example, it looks manual…
Despite the fact a manual upgrade is feasible and the process is well documented, i’m still wondering if we have to wait or not….
Thanks
how is it ready when images don’t work on Android? (worked in Preview 14)
Please encourage Microsoft to use MAUI with their own big projects like Office apps.
That’ll dogfood the product and make it more reliable and help with adoption in the wider community.
Also, please provide a variety of real world sample apps in GitHub.
Thanks!
How did you do the conversion? Is there a guide or some resources or is it simply that intuitive? Cheers
sudo dotnet workload install android - is working on Ubuntu, but the following command does not work:
sudo dotnet workload install maui --from-rollback-file https://aka.ms/dotnet/maui/rc.1.json --source https://aka.ms/dotnet6/nuget/index.json --source https://api.nuget.org/v3/index.json
Why ? I just want to develop MAUI Android application on Ubuntu, why I cannot do this if android workload is already available on Ubuntu ?
Please, add support at least for development of MAUI application on Ubuntu for Android and iOS ...
What about .Net MAUI with .Net 7 preview ?
Is Xcode 13.3 mandatory for MAUI RC1 to install and work on for iOS devices?
Good to be aware that software development in progress is future ready. Thanks a lot for information.