David Ortinau shows how to use your .NET skills, XAML expertise, Visual Studio, and Xamarin.Forms to deliver world-class Android, iOS, and UWP apps faster than ever. Dave will share and demo advanced design features, powerful libraries, out-of-the box and custom controls, and new capabilities that you’ll want to use immediately. From tips on improving Android Layout performance and including native controls and APIs to how to save development time with XAMLC, get the expert guidance and step-by-step demos you need to deliver lightning-fast, native apps. Watch webinar recording at https://aka.ms/video-xamarin.forms-webinar

4. Xamarin: Anything you can do in Objective-C,
Swift, or Java, you can do in C# and Visual Studio
Native user interface
High-fidelity API access
Native performance

5. Shared C# logic
Windows C# UIAndroid C# UIiOS C# UI
Xamarin’s unique approach
Shared C# codebase • 100% native API access • High performance

6. Xamarin Native approach
3 Native User Interfaces
Shared App Logic
Shared C# Logic
Windows C#Android C#iOS C#

7. Xamarin.Forms approach
Shared C# Logic
Shared UI Code
Shared (Native) User Interfaces
Shared App Logic

8. eXtensible Application Markup Language
Define Xamarin.Forms UI with markup, rather than code
public class Mira_FormsPageCodeOnly : ContentPage
{
public MyPage()
{
Content = new Label {
Text = "Welcome to Xamarin Forms!",
HorizontalOptions = LayoutOptions.Center,
VerticalOptions = LayoutOptions.Center
};
}
}
XAML C#

9. ContentPage Label Picker
Android Fragment or View TextView
AlertDialog + LinearLayout + EditText +
NumberPicker
iOS UIViewController UILabel
UITextField + UIPickerView + UIToolbar +
UIBarButtonItem
UWP Page TextBlock ComboBox

10. C#

12. Platform Effect Custom Renderer
From standard experiences to total control

14. Launch your app from urls and mobile search results
Create Page specific URLs, directing users to targeted screens
iOS and Android only

16. Create meaningful interface feedback for each platform

17. Source: easings.net

20. DO DO NOT

24. visualstudio.com
xamarin.com
github.com/davidortinau/WebinarDemos
developer.xamarin.com/guides/xamarin-forms/user-interface/animation/
developer.xamarin.com/guides/xamarin-forms/platform-features/deep-linking/
developer.xamarin.com/guides/xamarin-forms/user-interface/listview/performance/
developer.xamarin.com/guides/xamarin-forms/deployment-testing/performance/

25. developer.xamarin.com/guides/xamarin-forms/user-interface/layouts/
developer.xamarin.com/guides/xamarin-forms/platform-features/platform-specifics/
blog.xamarin.com/optimizing-xamarin-forms-apps-for-maximum-performance/
xfcomplete.net/animation/2016/01/18/compound-animations/

26. Thank you.
Questions?
David Ortinau
Senior Program Manager, Mobile Developer Tools
@davidortinau