Entries from March 2011 ↓

LowProfileImageLoader I’ve recently bumped into the need to display images from various RSS feeds in a Windows Phone 7 app. UI binding and loading of images can easily degrade the performance of any wp7 app, which led me to the excellent LowProfileImageLoader (LPIL) by David Anson. The LPIL attaches a property, UriSource, to an Image [...]

We (Andreas Hammar and I) are just returning from Tech-Days 2011, we delivered a session on developing applications for Windows Phone 7 in Blend and code. While we were preparing for this session something stuck in our minds – when it comes to mobile applications the top priority is in design and performance. Design and [...]

During the last two days of TechDays 2011 in Örebro, with the tagline ‘the Cloud story’, the term HTML5 was as frequently mentioned by speakers on some tracks as the word cloud was in other. Team .NET Web was represented by Gustaf (@gustaf_nk), Per (@per_okvist) and Karl (@herradriansson), with a session about our views on [...]

On my current assignment we have amongst other things a Web Service. We use Apache CXF 2.3.2 as Web Services framework. The number of requests has increased heavily the last couple of months and currently we have about 20 requests a second, around the clock. We decided to move the Web Service to its own [...]

Here are some tips on high perfomance Javascript I have picked up. Most of it comes from the books High Performance Javascript by Nicholas C. Zakas and High Performance Web Sites by Steve Souders. Loading Load files at the end of the HTML page Load the Javascript files right before the end body tag, this [...]

As Feroz and Aleadam commented on my previous post, it is now possible to copy test users from one application to another in the Facebook Graph API. This functionality is now implemented in facebook-test-java-api version 1.1.4. Code example This method copies a test user to another FacebookTestUserStore instance: FacebookTestUserStore facebookStore = new HttpClientFacebookTestUserStore(“<appId>”, “<appSecret>”)); FacebookTestUserStore [...]

Section 1.3 in Structure and Interpretation of Computer Programs is about Formulating Abstractions with Higher-Order Procedures. As an example, the authors use three simple sums: a sum of an integer range a sum of the cubes of an integer range a sum of a series that converges to π/8 The purpose is to highlight what [...]

There are several reasons for setting up Continuous Integration for any project. The very same reasons (and some more) are true for an Azure project. In this post I’ll take you through the journey that I and a colleague travelled in our quest for a fully automated build-test-deployment solution for our Azure project. Before I [...]

Here’s the development of a tiny little macro that is actually pretty useful. The post is quite verbose, because I explain a lot. I want a debug function that first prints the “quoted” (unevaluated) code and then what it evaluates to, so I can write something like this: user> (dbg (+ 1 2)) dbg: (+ [...]

Touch is great thing, suddenly you can touch, tap, double tap, flick, pinch and stretch to manipulate virtual object. It really revamped the whole mobile business mainly with the release of the iPhone and the capacitive touch screens, used in most smartphones today. But also in the stuff using infrared matrix screens like the Neonode [...]

On Thursday 3 mars Jayway hosted an Azure event at Malmö Högskola. It became a great event with about 60 attendees! Content Dag König, Microsoft, kicked off the day, delivering two great presentations. The first session was Introducing Windows Azure followed by Demonstration of Windows Azure. Together, both of the sessions delivered excellent content for anyone [...]

In the last three years I have together with several other contributors been developing the JRuby wrapper Neo4j.rb for the graph database Neo4j. I believe that a graph database such as Neo4j and the Ruby language is a perfect match since they share the same dynamic nature, like duck typing, no schemas and no static [...]

If you are working as a consultant, it is sometimes not easy to get proper network access when you are using your customer’s network. The easiest way to solve this problem is to connect via your mobile phone. But, the 3G network is not always the fastest and it would be nice to use the [...]