App-to-app-communication support is a powerful addition to Microsoft Windows Phone 8 that enables your apps to use functionalities of other apps. It also can help you increase the discoverability of your apps in Windows Phone Store, when you register the types of files and URI resources that the apps can enhance. In this training-lab webinar, you’ll learn how to use file and URI associations in Windows Phone 8 for app-to-app communication. You can use such associations to automatically launch your app when another app launches a specific file type or URI scheme. A deep link is used to send a reference to the file or URI to your app. This webinar also will introduce the association launching API to launch another app in the same way. We suggest that you install the Microsoft Windows Phone SDK 8.0 in advance to get the most out of this training lab. While you’ll learn a lot with or without the SDK, you’ll learn more if you have the SDK installed and can begin using the API as soon as you complete the training. Also, it will be helpful to have a Nokia Lumia phone built on Windows Phone 8 available for testing. Join the sessions, register for: 6 February - 8 a.m. London; 1:30 p.m. New Delhi; 4 p.m. Singapore - http://forumnokia.adobeconnect.com/lal9-file-uri-ssn1/event/registration.html 7 February - 8 a.m. San Francisco; 10 a.m. Mexico City; 4 p.m. London - http://forumnokia.adobeconnect.com/lal9-file-uri-ssn2/event/registration.html

1. LUMIA APP LABS #9
DEVELOPING WINDOWS
PHONE 8 APPS WITH
FILE AND URI
ASSOCIATIONS
Michael Samarin
Director,
Developer Training
Futurice Ltd.
http://www.futurice.com

2. LUMIA APP LABS #9
- 3rd party apps can register file type or URI
(protocol) association
- Concept is equivalent to launching
applications with arguments on other
platforms
- System or other 3rd party apps can request
launching associated handler app
- If there are no registered apps on device for
handling association, there is request for
searching Store
- File and URI scheme associations give possibility to implement
unidirectional App-to-App communication
- With certain creativity, it is possible to implement App-to-App
communication through different URI schemes

3. LUMIA APP LABS #9
Important MSDN Resources and
downloadable samples:
Auto-launching apps using file and URI :
http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj206987(v=vs.105).aspx
URI Association sample:
http://code.msdn.microsoft.com/wpapps/URI-Association-Sample-7915a233
Windows Phone 8 JumpStart: Module 10, by Andy Wigley:
http://code.msdn.microsoft.com/wpapps/Windows-Phone-8-JumpStart-eb2ff510
Recorded JumpStart video:
http://channel9.msdn.com/Series/MVA-Jump-Start/Building-Apps-for-Windows-Phone-8-Jump-Start-10-App-to-App-
Communication-in-Windows-Phone-8

4. LUMIA APP LABS #9
File and URI Associations Steps:
• Modifying WPAppManifest.xml for registering
associations
• Creating URI mapper class, based on UriMapperBase
• Modifying App.xaml.cs with URI mapper class
Launching Associations:
• Using LaunchFileAsync or LaunchUriAsync

5. LUMIA APP LABS #9
HANDS-ON SESSION
This webinar is mostly hands-on demo with
Windows Phone 8 SDK. If you are watching
these slides on SlideShare, direct link to
recording of the webinar is available in the
comments section below in few days after
the live webcasting.

6. LUMIA APP LABS #9
THANK YOU!
@MichaelSamarin
http://www.futurice.com