Let me out – Facebook Logout in a Windows Phone App
Published by on 05.01.2012 at 20:30

A while ago I implemented the Facebook photo endpoint into my Windows Phone Pictures Lab app. The implementation of the login was quite straightforward thanks to OAuth 2.0. Only the logout was way harder than one might expect. This post describes how to logout from Facebook using the Facebook API. In my Pictures Lab app you can edit photos, make them look awesome and then save or share those with your friends at Twitter or Facebook. The Windows Phone Mango API provides the ShareLinkTask and the ShareStatusTask which can be used by an app to share an URL or text using the social services the user has connected the device to. Unfortunately there's no built-in SharePhotoTask to share a photo using the services the user has already authorized. That's why I had to implement it in a custom way where the user has to authorize again. This blog post by my mate Nick Randolph describes very well how to login to Facebook from a Windows Phone app.
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SLARToolkit Samples Updated
Published by on 05.01.2012 at 19:25

The samples of my open source Windows Phone and Silverlight Augmented Reality Toolkit were updated to the latest version of the WP 7.1 and Silverlight 5 SDKs. Please note the changed security model in Silverlight 5, which is a big bummer. My Silverlight MVP friend Morten wrote a few true words about it here. As usual you can find a list of the samples on the project site and also get the code there.