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Cross-Platform Native User Interfaceswith Xama...
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Pranav Ainavolu
September 19, 2016
Technology
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54
Cross-Platform Native User Interfaces with Xamarin.Forms
Session Presented at Xamarin Dev Days - Hyderabad : Organized by MUGH.
Pranav Ainavolu
September 19, 2016
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Transcript
#XamarinDevDays #XamarinDevDaysHyd Hyderabad
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Traditional Xamarin Approach With Xamarin.Forms: More code-sharing, all native iOS
C# UI Windows C# UI Android C# UI Shared C# Backend Shared UI Code Shared C# Backend
✓ 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
Layouts Pages Stack Absolute Relative Grid ContentView ScrollView Frame Content
MasterDetail Navigation Tabbed Carousel
ActivityIndicator BoxView Button DatePicker Editor Entry Image Label ListView Map
OpenGLView Picker ProgressBar SearchBar Slider Stepper TableView TimePicker WebView EntryCell ImageCell SwitchCell TextCell ViewCell
Xamarin.Forms Ecosystem
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
Windows Xamarin.Forms DataContext BindingContext {Binding Property} {Binding Property} ItemsSource ItemsSource
ItemTemplate ItemTemplate DataTemplate DataTemplate
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<?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> </TabbedPage>
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Xamarin.Forms is Open Source! open.xamarin.com
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✓ Improves scrolling performance ✓ Old behavior is currently the
default (but likely to change)
XAML Parsed and inflated Parsed & turned into IL XAMLC
✓ Faster Loading ✓ Smaller App Size ✓ See XAML
errors at build time
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• Embeddable Carousel • ItemTemplate & DataTemplates • Highly customizable
& Virtualized
✓ Custom renderer “lite” ✓ Change properties on the native
control ✓ Optional ✓ “stringly-typed” X No methods or events X No replacing the control
entry.Effects.Add (Effect.Resolve("Xamarin.BorderEffect"));
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https://developer.xamarin.com/guides/xamarin-forms/datapages/
https://developer.xamarin.com/guides/xamarin-forms/themes/
Native Embedding
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>>Next Session: Pranav Ainavolu Microsoft MVP | Senior Developer at
RealPage
[email protected]
http://pranavon.net/ @a_pranav