Developing iOS and Android apps with shared code and UI with native performance using C# and Xamarin.Forms. Session presented at dotnetConf 2016 Hyderabad organized by Microsoft User Group Hyderabad

1. Microsoft User Group Hyderabad
dotnetConf 2016 Hyderabad

3. Shared C# codebase • 100% native API access • High performance
Windows-specific
C#
Android-specific
C#
iOS-specific
C#
C# Shared Logic
Java
Android Studio
in
Android codebaseiOScodebase
Objective-C
XCode
in
C#
Visual Studio
in
Windows codebase

4. Microsoft.Phone Microsoft.Networking Windows.Storage Windows.Foundation Microsoft.Devices
System.Data System.Windows System.Numerics System.Core System.ServiceModel
System.Net System System.IO System.Linq System.Xml

5. MapKit UIKit iBeacon CoreGraphics CoreMotion
System.Data System.Windows System.Numerics System.Core System.ServiceModel
System.Net System System.IO System.Linq System.Xml

6. Text-to-speech ActionBar Printing Framework Renderscript NFC
System.Data System.Windows System.Numerics System.Core System.ServiceModel
System.Net System System.IO System.Linq System.Xml

7. Xamarin.iOS does full Ahead Of Time
(AOT) compilation to produce an ARM
binary for Apple’s App Store.
Xamarin.Android takes advantage of
Just In Time (JIT) compilation on the
Android device.

12. Traditional Xamarin
Approach
With Xamarin.Forms:
More code-sharing, all native
Windows-
specific C#
Android-specific
C#
iOS-specific
C#
C# Shared Logic
Java
Android Studio
in
Android codebaseiOScodebase
Objective-C
XCode
in
C#
Visual Studio
in
Windows codebase
Xamarin.Forms
C# Shared Logic
Java
Android Studio
in
Android codebaseiOScodebase
Objective-C
XCode
in
C#
Visual Studio
in
Windows codebase

13. ✓ 40+ Pages, layouts, and controls
(Build from code behind or XAML)
✓ Two-way data binding
✓ Navigation
✓ Animation API
✓ Dependency Service
✓ Messaging Center
Xamarin.Forms
C# Shared Logic
Java
Android Studio
in
Android codebaseiOScodebase
Objective-C
XCode
in
C#
Visual Studio
in
Windows codebase

14. Layouts
Pages
Stack Absolute Relative Grid ContentView ScrollView Frame
Content MasterDetail Navigation Tabbed Carousel

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

16. Xamarin.Forms Ecosystem

17. <?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">
<TabbedPage.Children>
<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">
<!-- Settings -->
</ContentPage>
</TabbedPage.Children>

20. ✓ Windows 10 UWP
✓ Control Templates
✓ Data Template Selectors
✓ More Gestures (Pinch & Pan)
✓ XAML Compilation
✓ Effects
✓ Android Material Design
Xamarin.Forms
C# Shared Logic
Java
Android Studio
in
Android codebaseiOScodebase
Objective-C
XCode
in
C#
Visual Studio
in
Windows codebase

22. Get Started Today
Xamarin.com

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