Windows Phone 7.5Tips and Tricks for Developers

Sascha P. CortiDeveloper Evangelist, Microsoft Switzerlandsascha@corti.com | techpreacher.corti.com | @techpreacher

Windows Phone 7.5Quick Recap of What’s New

Windows Phone7.5

Software Architecture

App Model

Cloud and Integration

Services

Hardware Foundation

UI Model

Gyro

Camera, Sensors & Motion

Fast App Switch

Silverlight and XNA

Integration

Silverlight 4.0

Flexible chassis

SQL CEGen GC

Push, Alerts

Multitasking

Calendar Contacts

Maps

Extras, Tiles

Sockets

Multitasking

Background AudioUse AudioPlayerAgentShows controls on Lock Screen.

Background Notification SvcAlarmsReminders (Snooze & Launch into App Parameterized)

Run under Lock Screen (ie. GPS Apps)Set the PhoneApplicationService.ApplicationIdleDetectionMode Property.Mind the Power Consumption - See Certification Requirements 6.3 (http://corti.ch/wp7appcert)

Background File Transfers

Background Transfer Service

download

My WP Book App

Ready Player One

Jpod

WP7 for Devs

Great Mysteries o

CloudBackground

Transfer Service < 100

MB

<20 MB

<~3.0 MB

GET

POST

void DownloadWithBTS(Uri sourceUri, Uri destinationPath){ btr = new BackgroundTransferRequest(sourceUri, destinationUri); btr.TransferStatusChanged += BtsStatusChanged; btr.TransferProgressChanged += BtsProgressChanged; BackgroundTransferService.Add(btr);}

void BtsProgressChanged(object sender, BackgroundTransferEventArgs e){

DrawProgressBar(e.Request.BytesReceived);

}

using Microsoft.Phone.BackgroundTransfer;

void GetCurrentProgress(){ DrawProgressBar(btr.BytesReceived);}

completed

My WPBook App

ISO Store

AgentsPeriodicOn IdleMay have One or Both

Initialized in Foreground, Run in BackgroundPersisted across Reboots

User control through Control PanelUp to a Maximum of 18 periodic agents

Synchronize with Foreground through Mutex

Agent runs for up to 14 Days (can be renewed)

Occurrence: Every 30 minDuration: 15 secondsScenarios: Incremental Data Sync

Occurrence: External power, non-cell networkDuration: 10 minutesScenarios: Data Feasting

Background Agents

Accessing the Camera

PhotoCamera ClassNew API developed for WP

Silverlight WebCam APIPorted from SL4 Desktop with added functionality

Silverlight 4 WebCam

Reuse SL4 WebCam Knowledge

Easily Target Desktop and Phone

Record Video and Audio into File

PhotoCamera

Take High Quality Photos

Handle Hardware Button

Handle Flash mode and Focus

Build custom Camera

App

Build Augmented Reality App

(with MotionSensor)

Display in your App:

VideoBrush

AR Overla

ys

Custom

Camera

Hardware Sensors & API

HardwareAccelerometer Always available

Compass Not Mandatory in HW (but present if Gyro is)

Gyro Not Mandatory in HW

APIsMotionSensor All the Sensor + Math Use whenever available Also works w/o Gyro

Individual APIs available for all Sensors

Motion

Sensor

[cosγ .cos

α −cosβ . sin

α+sinβ . sin

γ .cosα sin β .

sin α+cos β

.sin γ.cos α

cos γ .sin α

cos β.cos α

+sin β. sin γ

. sinα− sin

β .cosα+cos β

. sin γ.sin α

− sinγ

sin β .cosγ

cos β.sin γ

]

Local Database

App Data Folder

App Root Folder

Install

DBDatabaseFile (r/o)

Creates root folder

sandboxed to App

Package

Manager

AppCreates/Managesfiles and settings

WP7 Isolated Storage

APIs

Application

Settings File

ApplicationFiles

DB

Database file

// Define the data context.public partial class WineDataContext : DataContext {

public Table<Wine> Wines;public Table<Vineyard> Vineyards;public WineDataContext(string connection) : base(connection) { }

}

// Define the tables in the database[Table]public class Wine{

[Column(IsPrimaryKey=true]public string WineID { get; set; }[Column]public string Name { get; set; }……

}

// Create the database form data context, using a connection stringDataContext db = new WineDataContext("isostore:/wineDB.sdf");if (!db.DatabaseExists()) db.CreateDatabase();

Multiple Live Tiles

Local Tile APIsFull Control of ALL Properties

Multiple Tiles per appCreate, Update / Delete / QueryLaunches directly to In App URI

Back of Tile UpdatesFull Control of all Properties when your App is in Foreground or BackgroundContent, Title, BackgroundFlips from Front to Back at random IntervalSmart Logic make Flips Asynchronous

Title

Content Title Background

Content string is bigger

Learning all about WP 7.5 Development

Getting Started Location and Sensors

Fundamental Concepts Media

Common Application Development Tasks Push Notifications and Tiles

Application Features XNA-Specific Code Samples

Background File Transfers, Agents, and Alarms Windows Phone Development Quick Starts

Cameras and Photos Windows Phone Training Kit

Controls Developing a Windows Phone Application from Start to Finish

A Case Study for Building Advanced Windows Phone Applications

http://corti.ch/wp7codesamples

Windows Phone 7.5 “Tango”

Tango Explained

Lower Cost Devices for Growth Markets23 more markets Bahrain, Bulgaria, China, Costa Rica, Croatia, Estonia, Iceland,

Iraq, Israel, Kazakhstan, Latvia, Lithuania, Qatar, Romania, Saudi Arabia, Slovakia, Slovenia, Thailand, Turkey, UAE, Ukraine, Venezuela and Vietnam

6 Times the Number of Pre-Loaded Apps

Changed Memory and Processor RequirementsAccommodate 7x27 processors and 256 MB of memory.No Background Agents allowed to run. Nokia Lumia 610

Platform Fragmentation Incoming?Transparent to Developers95% of Today’s Apps will work.Developers can define if their App is available on Tango Devices.

Aaah!Fragmentat

ion!

♥

Test Tango Today

Install the Windows Phone 7.1.1 SDK UpdateDownload link: http://corti.ch/wp-sdk-711 Make sure your App performs OK in Low Memory

Add the 23 New Markets!Edit existing App Listings in App Hub account at http://create.msdn.com

2 phone emulators

256 & 512 MB Memory

Tango Best Practices

Optimize Startup TimeMinimize Code in App/Page Constructors and Keep Launching/OnNavigatedTo Activity MinimalLeverage the system tray ProgressIndicator for the best performance.Once first Frame is rendered, keep blocking Calls off of the UI Thread.Adding a splash screen can additionally improve startup time: this frame is drawn by the OS itself

Reduce Memory UsagePer certification requirement 5.2.5: Max 90MB of App Memory usage on 256MB Devices.Use the memory profiler and memory-related APIs to profile your app’s memory usage.Leverage the new back stack manipulation APIs exposed in Windows Phone 7.5

Handle Feature ReductionsOn 256MB devices, Background Agents (PeriodicTasks/ResourceIntensiveTasks) are disabled.This is surfaced to the App via an InvalidOperationException which all Apps must handle.

Microsoft Blog Post

Nokia Best Practice Tips

demoTesting your App with “Tango”

Application Lifecycle

New Application Resume UX

Faster user experience! Enabled for all WP7.5 apps Recompile & Test your

WP7 application

Resuming . . .

WindowsPhone 7

WindowsPhone 7.5

TapTap and

hold

running

deactivated

dormant

activated

Phone resources detachedThreads & timers suspended

Fast App Resume

Save App

State!

State isPreserved

Tombstoned

OnNavigatedFromApplication_Deactiva

ted10

Tombstoned

Application_Activated

OnNavigatedTo

Tombstoned

Application_Launching

OnNavigatedTo

Resuming . . .

running

deactivated

dormant

activated

Tombstone the

oldest app

tombstoned

Restore App State

RestoreState !

Tombstoned

Application_Activated

OnNavigatedTo

running

deactivated

dormant

activated

tombstoned

Tombstoned

OnNavigatedFromApplication_Closing10

Deactivation Resource ManagementDeactivated App

PhoneApplicationPage.OnNavigatedFrom

PhoneApplicationService.Deactivated

Framework:Detach Resources

Framework:Suspend Timers and Threads

Dormant App

MediaPlayer.PauseMediaElement.Pause

SoundEffectInstance.PauseVibrateController.StopPhotoCamera.Dispose

Save Page / Global StateXNA Audio Paused

Sensors Notifications suppressed

Networking Cancelled

Sockets Disconnected

MediaElement Disconnected

Camera Disposed

Activation Resource Management

MediaElement.Source/Position/PlaySocket.ConnectAsync

new PhotoCamera/VideoCamera

Restore app state if tombstoned

Running App

PhoneApplicationPage.OnNavigatedTo

PhoneApplicationService.Activated

Framework:Attach Resources

Framework:Resume Timers and Threads

Dormant App

XNA Audio Resumed

Sensors Notifications resumed

Networking Completed with Cancellation

Sockets -

MediaElement -

Camera -

demoApplication LifecycleWindows Phone 7 App with and without AL Awareness

Developing for Multiple WP VersionsKeep Versions of your App for WP7, WP7.5, etc. Copy WP7 solution Add Existing Files as Linked Assets Use Conditional Compilation

demoWindows Phone 7.5 App with IsApplicationInstancePreservedApp Versioning Done Right

In App Advertising

Adding In App Advertising to Windows Phone Apps

3Publish to Store

Set Ad Unit/App IDs in your AppSubmit Ad-enabled App to StoreTrack your success at PubCenter

1 Download Ad

SDK

Download Ad SDKAdd few lines of code to add AdsSupport for Silverlight & XNA

2 Register App

Sign in to PubCenterRegister your app at PubCenterGenerate App ID and Ad Unit IDs

Register

pubCenter under the Hood

Ads available for Region

US, UK, ESP, IT, DENOT Switzerland

Control Language

10 for Developers22 for End Users

Developer Registration & Pay

19 CountriesIncluding Switzerland

€

Microsoft Advertising Links

Main SitesMonetize your Windows Phone 7 AppspubCenter

White PapersFrequently Asked QuestionsMonetization Best Practices

DownloadsMicrosoft Advertising SDK for Windows PhoneMSDN Documentation: Advertising SDK for Windows PhoneAdvertising SDK for Windows Phone AdControl (Silverlight) Sample Advertising SDK for Windows Phone XNA Sample

Advertising Resources

demoMicrosoft Advertising SDK for Windows Phone

Doing GPS the Right Way

Requirements for CertificationExplicitly ask for Permission on First RunCreate a Settings Page that Lets the User switch GPS On/Off Contains a Disclaimer that says

What you use the GPS for What happens to the Data in case it’s sent to a Server

Best PracticeTurn Off and Dispose of GeoCoordinateWatcher if you don’t need it!

demoDoing GPS The Right Way

Windows Phone Marketplace

Marketplace: New RegionsResubmit your App to reach New Markets!No more ITIN needed on W8-BENMarketplace Website with Deep Linking

Windows Phone 7: 16

Windows Phone 7.5 +19 (35)

Added in 2012: +28 (63)Bahrain, Bulgaria, China, Costa Rica, Croatia, Estonia, Iceland, Iraq, Israel, Kazakhstan, Latvia, Lithuania, Qatar, Romania, Saudi Arabia, Slovakia, Slovenia, Thailand, Turkey, UAE, Ukraine, Venezuela, Vietnam, Argentina, Indonesia, Malaysia, Peru, Philippines

Marketplace: Distribution Options

* People who obtain deep link can access and download.

“Beta” Private Public# of users 100 unlimited unlimited

App Price Must be “free” Can be “paid” Can be “paid”

Time Limited Expires after 90d No No

Updateable No Yes Yes

Certification Required No Yes Yes

Discoverable No No * Yes

Access Control Limited to test user WLIDs provided

No No

Target Users Beta Users Private Users Public Users

Marketplace Test Kit

Resources for Developers

Online Resources I : The BasicsApp Hub http://create.msdn.com

Tools http://wpdev.ms/wpsdk71rc

WP on MSDN Library http://wpdev.ms/wponmsdn

WP “How To” Index http://wpdev.ms/wphowtos

WP UX Guide http://wpdev.ms/wpuxguide

WP P&P Guide http://wpdev.ms/wppnpguide

WP Dev Blog http://wpdev.ms/developerblog

Porting to WP http://wpdev.ms/porting

WP Labs (WP7) http://wpdev.ms/wprtmhols

WP Labs (WP7.5) http://wpdev.ms/mangohol

WP SL Quick Starts http://wpdev.ms/xamlquick

Online Resources II : Videos

WP Jumpstart http://wpdev.ms/jumpstarts

WP How To Videos http://wpdev.ms/howvidsWP “Absolute Beginners” http://wpdev.ms/beginvidsInside WP on C9 http://wpdev.ms/insidewpDesign Toolbox http://wpdev.ms/designtbWP Game Dev Vids http://wpdev.ms/gamevidsWP at MIX 11 Vids http://wpdev.ms/wpmix11WP at TENA 11 Vids http://wpdev.ms/wptena11

Online Resources III : Other

App Hub FAQ http://wpdev.ms/apphubfaq

App Hub Forums http://wpdev.ms/ahforumRegistration Walkthrough http://wpdev.ms/regwalkSubmission Walkthrough http://wpdev.ms/subwalkCert Requirements http://wpdev.ms/certreqWP Samples on MSDN http://wpdev.ms/officialsamplesSL Toolkit for WP http://wpdev.ms/wpsltkAzure Toolkit for WP http://wpdev.ms/wpwaztk

Online Resources IV : 3rd PartySilverlight Show on WP http://www.silverlightshow.net/Search.asp

x?q=%5Bwindows-phone-7%5D

Windows Phone Geek http://www.windowsphonegeek.com/WPDEV on Twitter http://twitter.com/#search?q=wp7devWPDEV on REDDIT http://www.reddit.com/r/wp7devWPDEV on Stack Overflow http://stackoverflow.com/questions/tagge

d/windows-phone-7

© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a

commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a

commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Backup Slides

Fast App Switching

What can go wrong?What do I have to do as a developer?

Running under Lock Screen

Developing for Multiple WP VersionsKeep Versions of your App for WP7, WP7.5, etc. Copy WP7 solution Add Linked Files Use Conditional Compilation