Xamarin allows developers to build native mobile apps for Android, iOS, and Windows from shared C# code. Developers can share all business logic and UI code across platforms using Xamarin.Forms, or share just business logic using traditional Xamarin. It supports building UIs with common UI elements and controls and data binding. Platform-specific code can interface with shared code through NuGet packages, shared projects, or portable class libraries. Xamarin apps can be built and deployed to emulators and devices from Microsoft Visual Studio on Windows or Visual Studio for Mac.

2. university.xamarin.com

4. Deploy to
emulator and
device

5. Build native UIs for Android, iOS, and Windows
from a single, shared C# codebase

6. iOS
Traditional Xamarin shares
business logic
Xamarin.Forms can also share
the UI definition
iOS C# UI
Shared C# logic
Android C# UI Windows C# UI
iOS
Shared C# UI
Shared C# logic

7. ✓ UI building blocks like pages,
layouts, and controls
✓ XAML-defined UI
✓ Data binding
✓ Navigation
✓ Animation API
✓ Dependency Service
✓ Messaging Center
iOS
Shared C# UI
Shared C# logic

8. iOS
Android 4.0.3+iOS 6.1+ Windows 10 (UWP)
Windows Store 8.1 (RT)
Windows Phone 8.1 (RT)

11. Microsoft Visual Studio
on Windows
Visual Studio for Mac
on macOS (preview)

12. Parts of the build
are done on the
networked Mac

15. ContentPage MasterDetailPage NavigationPage TabbedPage CarouselPage

16. StackLayout AbsoluteLayout RelativeLayout Grid ContentView ScrollView Frame

17. Editor
Map
Slider
EntryCell
ActivityIndicator
Entry
OpenGLView
Stepper
ImageCell
BoxView
Image
Picker
TableView
SwitchCell
Button
Label
ProgressBar
TimePicker
TextCell
DatePicker
ListView
SearchBar
WebView
ViewCell

18. public class Person
{
public string Name
{
get; set;
}
public string Email
{
get; set;
}
public Gender Gender
{
get; set;
}
}
Binding
Binding
Binding

19. Xamarin.FormsMicrosoft XAML (WinRT)

20. <?xml version="1.0" encoding="UTF-8"?>
<TabbedPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="MyApp.MainPage">
<ContentPage Title="Profile" Icon="Profile.png">
<StackLayout Spacing="20" Padding="20"
VerticalOptions="Center">
<Entry Placeholder="Username" Text="{Binding Username}"/>
<Entry Placeholder="Password" Text="{Binding Password}"
IsPassword="true"/>
<Button Text="Login" TextColor="White"
BackgroundColor="#77D065"
Command="{Binding LoginCommand}"/>
</StackLayout>
</ContentPage>
<ContentPage Title="Settings" Icon="Settings.png">
</ContentPage>
</TabbedPage>

23. NuGet
Packages
Shared
Projects
Portable Class
Libraries

24. Open and pass
supported types
to PCL
Multiple options for passing data between platform-specific code and
shared (PCL) code
Platform-specific code strategies
Fill in properties
with loaded data
Design higher-
level abstractions

26. Get started today
xamarin.com/download

27. Free self-guided courses

28. @adrian_stevens
adrian.stevens@microsoft.com

29. Samples available at:
aka.ms/drumpad