Dive into mobile app development with Xamarin 4 in this presentation from Xamarin Developer Evangelist James Montemagno as he walks you through how to build beautiful, performant apps with the Xamarin Platform.

1. James Montemagno
DeveloperEvangelist,Xamarin
4
The future of apps
@JamesMontemagno

2. Make it fast, easy, and fun to
create great mobile apps.
Xamarin’s Mission

3. Xamarin – Your Complete Mobile Solution
BUILD TEST MONITOR
ACCELERATE

4. BUILD TEST MONITOR
ACCELERATE
Xamarin – Your Complete Mobile Solution

5. Xamarin’s Unique Approach
Shared C# codebase • 100% native API access • High performance
iOS C# UI Windows C# UIAndroid C# UI
Shared C# Mobile

6. Windows APIs
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

7. iOS – 100% API Coverage
MapKit UIKit iBeacon CoreGraphics CoreMotion
System.Data System.Windows System.Numerics System.Core System.ServiceModel
System.Net System System.IO System.Linq System.Xml

8. Android – 100% API Coverage
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

9. Native Performance
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.
.NET
C#
Compile
and Link
.APK
Bindings
Runs
Natively
IL
+
JIT

10. ✓Always Up-‐to-‐Date
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11. Visual Studio Xamarin Studio

12. Xamarin.com/Download
Visual Studio Integration

14. Let’s take a look

15. Meet Xamarin.Forms

16. Xamarin + Xamarin.Forms
Traditional Xamarin
Approach
With Xamarin.Forms:
More code-‐sharing, all native
iOS C# UI Windows C# UIAndroid C# UI
Shared C# Backend
Shared UI Code
Shared C# Backend

17. What’s included
✓ 40+ Pages, layouts, and controls
(﴾Build from code behind or XAML)﴿
✓ Two-‐way data binding
✓ Navigation
✓ Animation API
✓ Dependency Service
✓ Messaging Center
Shared C# Backend
Shared UI Code

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

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

20. Xamarin.Forms Ecosystem

21. Windows Xamarin.Forms
StackPanel StackLayout
TextBox Entry
ListBox ListView
CheckBox Switch
ProgressBar ActivityIndicator
Grid Grid
Label Label
Button Button
Image Image
Date/TimePicker Date/TimePicker
Control
Comparison

22. Windows Xamarin.Forms
DataContext BindingContext
{Binding Property} {Binding Property}
ItemsSource ItemsSource
ItemTemplate ItemTemplate
DataTemplate DataTemplate
Binding
Comparison

23. Platform
Customization

24. <?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>
Native UI from shared code

25. Let’s take a look

26. 9
What’s new in Xamarin Platform?
Enhanced VS IntegrationXamarin.Forms 2.0 iOS 9 & Android M Preview
Technologies

27. Xamarin.Forms 2.0

28. Xamarin.Forms 2.0: Material Design
https://blog.xamarin.com/material-‐design-‐for-‐your-‐xamarin-‐forms-‐android-‐apps/

29. Xamarin.Forms 2.0: Material Design
https://blog.xamarin.com/material-‐design-‐for-‐your-‐xamarin-‐forms-‐android-‐apps/

30. Xamarin.Forms 2.0: ListView Optimizations
http://developer.xamarin.com/guides/cross-‐platform/xamarin-‐forms/user-‐interface/listview/performance/

31. Xamarin.Forms 2.0: ListView Optimizations
http://developer.xamarin.com/guides/cross-‐platform/xamarin-‐forms/user-‐interface/listview/performance/

32. Xamarin.Forms 2.0: XAML Optimizations
https://developer.xamarin.com/guides/cross-‐platform/xamarin-‐forms/user-‐interface/xaml-‐basics/xamlc/

33. Xamarin.Forms 2.0: XAML Optimizations
https://developer.xamarin.com/guides/cross-‐platform/xamarin-‐forms/user-‐interface/xaml-‐basics/xamlc/

34. Xamarin.Forms 2.0: Windows 10 (﴾UWP)﴿ Preview
https://blog.xamarin.com/getting-‐started-‐with-‐xamarin-‐forms-‐windows-‐10-‐preview/

35. Let’s take a look

36. Visual Studio Integration Enhancements

37. 9
Enhanced iOS & Android Designers

38. Preview Technologies
Profiler
Objective Sharpie
CocoaPod Integration
Inspector

39. Get Started Today
xamarin.com

40. Free 30 Day Trial -‐ xamarin.com/university
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Development
Training
Live unlimited mobile development training from
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41. evolve.xamarin.com

43. Resources:

44. Thank you.
James
Montemagno
Developer Evangelist, Xamarin
james@xamarin.com motzcod.es @JamesMontemagno
Questions?