Native i os, android, and windows development in c# with xamarin 4

James MontemagnoDeveloper Evangelist, Xamarin

4

The future of apps

@JamesMontemagno

Make it fast, easy, and fun to create great mobile apps.

Xamarin’s Mission

Xamarin – Your Complete Mobile Solution

BUILD TEST MONITOR

ACCELERATE

BUILD TEST MONITOR

ACCELERATE

Xamarin – Your Complete Mobile Solution

Xamarin’s Unique Approach

Shared C# codebase • 100% native API access • High performance

iOS C# UI Windows C# UIAndroid C# UI

Shared C# Mobile

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

iOS – 100% API Coverage

MapKit UIKit iBeacon CoreGraphics CoreMotion



Android – 100% API Coverage

Text-‐to-‐speech ActionBar Printing Framework Renderscript NFC



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# Compileand Link .APK

Bindings

RunsNatively

IL+

JIT

✓Always Up-‐to-‐Date

••••••

•••••

Visual Studio Xamarin Studio

Xamarin.com/Download

Visual Studio Integration

Let’s take a look

Meet Xamarin.Forms

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

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

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

Controls

Xamarin.Forms Ecosystem

Windows Xamarin.FormsStackPanel StackLayoutTextBox EntryListBox ListViewCheckBox SwitchProgressBar ActivityIndicatorGrid GridLabel LabelButton ButtonImage ImageDate/TimePicker Date/TimePicker

Control Comparison

Windows Xamarin.Forms

DataContext BindingContext

{Binding Property} {Binding Property}

ItemsSource ItemsSource

ItemTemplate ItemTemplate

DataTemplate DataTemplate

BindingComparison

PlatformCustomization

<?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

Let’s take a look

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What’s new in Xamarin Platform?

Enhanced VS IntegrationXamarin.Forms 2.0 iOS 9 & Android M PreviewTechnologies

Xamarin.Forms 2.0

Xamarin.Forms 2.0: Material Design

https://blog.xamarin.com/material-‐design-‐for-‐your-‐xamarin-‐forms-‐android-‐apps/

Xamarin.Forms 2.0: ListView Optimizations

http://developer.xamarin.com/guides/cross-‐platform/xamarin-‐forms/user-‐interface/listview/performance/

Xamarin.Forms 2.0: XAML Optimizations

https://developer.xamarin.com/guides/cross-‐platform/xamarin-‐forms/user-‐interface/xaml-‐basics/xamlc/

Xamarin.Forms 2.0: Windows 10 (﴾UWP)﴿ Preview

https://blog.xamarin.com/getting-‐started-‐with-‐xamarin-‐forms-‐windows-‐10-‐preview/

Let’s take a look

Visual Studio Integration Enhancements

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Enhanced iOS & Android Designers

Preview Technologies

Profiler Objective SharpieCocoaPod Integration Inspector

Get Started Todayxamarin.com

Free 30 Day Trial -‐ xamarin.com/university

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Training

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Resources:

Thank you.

JamesMontemagnoDeveloper Evangelist, Xamarin

[email protected] motzcod.es @JamesMontemagno

Questions?

Native i os, android, and windows development in c# with xamarin 4

Technology

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