Xamarin & Azure Mobile AppsAlessandro Pozone

@TPOZ1

XamarinStudentPartner

MOBILE APPS ARCHITECTURES

Silo Approach

Nosharedcode•Manylanguages&developmentenvironments•Multipleteams

iOS

Objective-CXcode

Android

JavaAndroidStudio

Windows

C#VisualStudio

Write Once, Run Anywhere

AppGenerator

LuaJavascript

ActionscriptHTML+CSS

LimitednativeAPIaccess•Slowperformance•Pooruserexperience

Xamarin’s Unique Approach

SharedC#codebase•100%nativeAPIaccess•Highperformance

iOSC#UI WindowsC#UIAndroidC#UI

SharedC#

C#

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

Windows APIs

MapKit UIKit iBeacon CoreGraphics CoreMotion

System.Data System.Windows System.Numerics System.Core System.ServiceModel

System.Net System System.IO System.Linq System.Xml

C#

iOS APIs

Text-to-speech ActionBar PrintingFramework Renderscript NFC

System.Data System.Windows System.Numerics System.Core System.ServiceModel

System.Net System System.IO System.Linq System.Xml

C#

Android APIs

XAMARIN.IOS does full Ahead Of Time(AOT) compilation to produce an ARMbinary for Apple’s App Store.

XAMARIN.ANDROID takes advantageof Just In Time (JIT) compilation on theAndroid device.

.NET

C# Compileand Link .APK

Bindings

RunsNatively

IL+

JIT

Native Performance

.NET

C# Compileand Link .APK

Bindings

RunsNatively

IL+

JITAOT .APP

ARM BINARY

Runs Natively

ANYTHING YOU CAN DO IN OBJECTIVE-C, SWIFT, OR JAVA CAN BE DONE IN C# WITH XAMARIN

XAMARIN FORMS

Build native UIs for iOS, Android, and Windows Phone from a single, shared C# codebase.

XAMARIN.FORMS

Xamarin + Xamarin.Forms

TraditionalXamarinApproach WithXamarin.Forms:More code-sharing, all native

iOSC#UI WindowsC#UIAndroidC#UI

SharedC#Backend

SharedUICode

SharedC#Backend

Native UI from shared code<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>

</xml>

Xamarin.Forms is best for: Xamarin.iOS / Xamarin.Android is best for:

• Data entry apps

• Prototypes and proofs-of-concept

• Apps that require little platform-specific functionality

• Apps where code sharing is more important than custom UI

Learn more: xamarin.com/forms Learn more: xamarin.com/platform

• Apps that require specialized interaction

• Apps with highly polished design

• Apps that use many platform-specific APIs

• Apps where custom UI is more important than code sharing

Which Xamarin approach is best for your app?

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AZURE MOBILE APPS

Storage

Authentication

Push

What is Mobile Services?

STORAGE

Structured Storage

Powered by SQL DatabaseSupports rich querying capabilitiesData management in:• Azure Portal• SQL Portal (Silverlight)• SQL Management Studio• REST API• Azure CLI Tools• SQL CLI

PUSH NOTIFICATIONS

Push Notification Flow

AUTHENTICATION

User Auth Flow (client) GOOGLE

FACEBOOK

TWITTER

MOBILESERVICE

DEVICE

MICROSOFTACCOUNT

AAD

DEMO