Join James Montemagno, Principal Lead PM for .NET Community, and he shows off the latest and greats for Xamarin developers. This includes great enhancements to the core platforms, cross-platform development with Xamarin.Forms, and awesome new tooling to be more productive than ever. He will then talk about the future with .NET MAUI and what this next evolution of Xamarin.Forms bring for developers and why he is so excited.

2. .NET
C# C#
Xamarin.Essentials
C#
Xamarin.Forms - UI
Shared C# codebase • 100% native API access • High performance
Shared C#
Business Logic
Delight Developers

5. Code faster
Code further
Code deeper
Build & Deploy faster
Startup faster
Reduce app size
Iterate faster

6. Demo
The new Xamarin experience

7. Test changes made to your app, including multi-file code edits, resources, and
references while using a much faster build and deploy cycle.
With Hot Restart, debug your iOS app built with Xamarin.Forms on a device
connected to your Windows machine allowing for a much faster inner development
loop.
• Now:
• iOS on Windows
• Next:
• Android on Mac/Windows
• iOS on Mac
• Integrated F5 experience

9. Xamarin.Forms

10. Shell
Simplified Tabs and Flyout Menu
URI Navigation from Anywhere
Performant Renderer Architecture
Visual + Material
Native Material Design Controls
ActivityIndicator, Button,
CardView, Editor, Entry, Pickers,
ProgressBar, Slider, Stepper
CollectionView
Linear, Grid, Custom Layouts
Performant Item Views
EmptyView
InfiniteLoading
Optimized Caching

11. https://github.com/Elisha-Misoi
<TabBar>
<Tab Title="Feed"
Icon="{StaticResource NewspaperIcon}"
Route="mainFeed">
<ShellContent
ContentTemplate="{DataTemplate views:MainFeed}" />
</Tab>
<Tab Title="Interests"
Icon="{StaticResource StarIcon}"
Route="interests">
<ShellContent
ContentTemplate="{DataTemplate views:MyInterests}" />
</Tab>
<Tab Title="Explore"
Icon="{StaticResource SearchIcon}"
Route="explore">
<ShellContent
ContentTemplate="{DataTemplate views:Explore}" />
</Tab>

12. https://github.com/DamienDoumer
<CollectionView ItemsSource="{Binding Messages}"
IsGrouped="True"
BackgroundColor="{StaticResource PrimaryColor}"
x:Name="MessagesCollectionView">
<CollectionView.GroupHeaderTemplate>
<DataTemplate>
<v:MessageHeaderView />
</DataTemplate>
</CollectionView.GroupHeaderTemplate>
<CollectionView.ItemTemplate>
<dataTemplateSelector:ChatBubbleTemplateSelctor />
</CollectionView.ItemTemplate>
</CollectionView>

13. <CarouselView
ItemsSource="{Binding Burgers}"
HeightRequest="260"
HorizontalOptions="FillAndExpand"
CurrentItem="{Binding SelectedBurger}"
IsScrollAnimated="True"
IsSwipeEnabled="True">
<CarouselView.ItemTemplate>
<DataTemplate>
<t:BurgerItem />
</DataTemplate>
</CarouselView.ItemTemplate>
</CarouselView>
https://github.com/devcrux

14. <SwipeView>
<SwipeView.LeftItems>
<SwipeItems>
<SwipeItem
BackgroundColor="#FFC107"
Invoked="OnFavoriteSwipeItemInvoked"
Text="Favorite" />
</SwipeItems>
</SwipeView.LeftItems>
<SwipeView.RightItems>
<SwipeItems>
<SwipeItem
BackgroundColor="#FF3D00"
Command="{Binding DeleteCommand}"
CommandParameter="{Binding}"
Text="Delete" />
</SwipeItems>
</SwipeView.RightItems>
<!-- Content -->
</SwipeView>
https://github.com/exendahal

15. <Expander
ExpandAnimationEasing="{x:Static Easing.Linear}"
CollapseAnimationEasing="{x:Static Easing.Linear}"
IsExpanded="{Binding IsDetailVisible, Mode=TwoWay}">
<Expander.Header>
<v:HeaderView />
</Expander.Header>
<!-- content -->
</Expander>
https://github.com/jsuarezruiz

16. Content = new Grid {
RowSpacing = 0,
RowDefinitions = Rows.Define(
(PageRow.Header, Auto),
(PageRow.Body , Star)
),
Children = {
new ScrollView { Content = new StackLayout { Children = {
new Button { Text = nameof(RegistrationCodePage) }
.Style (FilledButton)
.FillExpandH ()
.Margin (PageMarginSize)
.Bind (nameof(vm.ContinueToRegistrationCommand)),
new Button { Text = nameof(NestedListPage) }
.Style (FilledButton)
.FillExpandH ()
.Margin (PageMarginSize)
.Bind (nameof(vm.ContinueToNestedListCommand)),
https://github.com/VincentH-Net

17. https://github.com/davidortinau
<Image.Clip>
<EllipseGeometry
Center=“75, 75”
RadiusX=“75”
RadiusY=“75” />
</Image.Clip>
<Path
Grid.RowSpan=“7”
Grid.ColumnSpan=“4”
HorizontalOptions=“Fill”
VerticalOptions=“Fill”
Fill=“White”
Data=“M251,0 C266.463973,-2.84068575e-15 279,12.536027 279,28”
/>

18. https://github.com/davidortinau
<Style
TargetType=“ContentPage”
ApplyToDerivedTypes=“True”>
<Setter
Property=“BackgroundColor”
Value=“{AppThemeBinding
Dark={StaticResource BackgroundColor_Dark,
Light={StaticResource BackgroundColor_Light}}”/>
</Style>

19. SharedTransitions
github.com/GiampaoloGabba
NeoControls
github.com/felipebaltazar
PancakeView
github.com/sthewissen
Sharpnado
github.com/roubachof

20. aka.ms/xf-roadmap

21. <LinearGradientBrush
x:Key="HorizontalLinearGradient"
StartPoint="0, 0"
EndPoint="1, 0">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#1C7EFF" Offset="0.1" />
<GradientStop Color="#3771F7" Offset="0.6" />
<GradientStop Color="#3877F6" Offset="1.0" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<NavigationPage
BarBackground="{StaticResource HorizontalLinearGradient}">
</NavigationPage>

22. <TabView
Style="{StaticResource CustomTabStyle}">
<TabViewItem
ControlTemplate="{StaticResource FabTabItemTemplate}"
Style="{StaticResource TabItemStyle}"
Icon="{StaticResource PlusIcon}"
Command="{Binding AddCommand}"/>
<TabViewItem
ControlTemplate="{StaticResource TabItemTemplate}"
Style="{StaticResource TabItemStyle}"
Icon="{StaticResource ClockIcon}"
ContentTemplate="{DataTemplate ClockView}"/>
<TabViewItem
ControlTemplate="{StaticResource TabItemTemplate}"
Style="{StaticResource TabItemStyle}"
Icon="{StaticResource AlertIcon}"
ContentTemplate="{DataTemplate AlertView}"/>
<TabViewItem
ControlTemplate="{StaticResource TabItemTemplate}"
Style="{StaticResource TabItemStyle}"
Icon="{StaticResource SettingsIcon}"
ContentTemplate="{DataTemplate SettingsView}"/>
</TabView>

23. <ContentPage>
<AppBar
BarBackgroundColor="Black"
BarBackgroundImage="background.gif" />

24. With Xamarin, you can build fast, beautiful,
native apps in less time, with less code,
within a thriving ecosystem

25. Journey to one .NET

26. Your platform for building anything
.NET
Desktop Web Cloud Mobile Gaming IoT AI

27. LIBRARIES
INFRASTRUCTURE
.NET STANDARD
VISUAL STUDIO CODE
CLI
VISUAL STUDIO
VISUAL STUDIO FOR MAC
WEB CLOUD MOBILE GAMING IoT AIDESKTOP
.NET – A unified platform

28. LIBRARIES
INFRASTRUCTURE
.NET STANDARD
VISUAL STUDIO CODE
CLI
VISUAL STUDIO
VISUAL STUDIO FOR MAC
WEB CLOUD MOBILE GAMING IoT AIDESKTOP
.NET – A unified platform

29. .NET Framework
Mono / Xamarin
.NET Core.NET
Single SDK, one BCL, unified toolchain
Cross-platform native UI
Cross-platform web UI
Cloud native investments
Continue improvements in speed, size, diagnostics, Azure services
.NET has the best of breed solutions for all modern workloads
One .NET vision – .NET 5 to 6 "wave"

30. Cross-platform, native UI
Single project, single codebase
Deploy to multiple devices, mobile & desktop
Evolution of Xamarin.Forms
Targeting .NET 6, previews end of year
Build beautiful, native UI for any device
.NET MAUI
.NET Platform
github.com/dotnet/maui

36. github.com/dotnet/maui

37. Dec 2019
.NET Core 3.1
LTS
Nov 2020
.NET 5.0
Nov 2021
.NET 6.0
LTS
Nov 2022
.NET 7.0
Nov 2023
.NET 8.0
LTS
Yes, you should still create Xamarin apps until .NET MAUI ships!

38. Thank you.
Xamarin.com
James
Montemagno
Principal Lead Program Manager – .NET Community, Microsoft
motz@microsoft.com Montemagno.com @JamesMontemagno
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