Great news, Zeilsteen for iPhone version 2.0 is approved by Apple.
It will be available soon.
The following this have changed:
+ Full background playing. (Yes it does work this time)
+ Library with latest played songs, and album images if available.
+ Currently playing information on Lock screen (iOS 5).
+ Twitter and Facebook integration, brag about the great songs on Zeilsteen.
Ever had the need to retrieve data stored in the document directory of you iOS application. Well surprisingly Xcode can help you.
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Since iOS 5 was first in beta many developers started complaining about the fact that the [[UIDevice currentDevice] uniqueIdentifier] got deprecated.
Some developer even stated that is was the worst idea Apple ever had.
Well I don’t agree with them, this is about the smartest thing they did. If only for the privacy of the user.
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Just before the end of the year iPhone Magazine interviewed me for there magazine.
Its about my work as an iOS developer at Oberon, they add at a “Meet the developer” in this issues.
They will be adding this section to all there upcoming issue, hopefully this wil give user some idea of what it takes to develop an app.
The magazine is in Dutch and you can buy it online.
Have apple introduced the iPhone 3GS they made an major switch in processor architecture, the want from armv6 to armv7.
Now that we have all update to Xcode 4 with iOS 5, Apple seems to be of the opinion that you can drop support of the armv6 architecture.
Well this isn’t always the case, especial for those device that can run iOS 4.*.
Luckily you solve this very easily, go to the the project build setting.
Many people have written about parsing JSON data on the iPhone, but why use JSON and not XML.
Well this has to do with overhead, JSON is smaller in it’s mark-up then XML thus it will take less traffic on the cellular network.
But there are some drawback in using JSON, since there is no real strict way of checking the model. Like DTD is for XML.
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For those of you who are following/read my tweets you might have noticed me talk about Appsterdam.
Appsterdam is a community of app developer for all platforms, mostly iOS and Android.
Getting to getter and share experiences, ideas and a couple of drinks.
The main force behind this great idea, is Mike Lee (@bmf).
I’ve been active in other development communities when I was still developing in Delphi.
We would meetup once a year, at Borland in the Netherlands, to talk and eat.
Since I switch from Delphi to .NET I really started to miss the NLDelphi community, still have some friends form those days.
Looking for some thing new to do in the .NET community, I went to every meeting and conventions I could go to. But the community did no appeal to me at all.
Since switching to Object-C and the iOS platform, a choice I’ve yet to regret, it never crossed my mind to check out any communities. Being at an convention for developers there talk about a community for app developers.
Since I first heard about Appsterdam I really liking the idea, it could be a great way the share experiences and work out ideas. But It’s becoming more then just a get together.
There will be many things in store for the community, so I’ve you’re an app developer and live in Amsterdam (or nearby) come to one of our meetings. (follow @Appsterdamrs)
I’ve decided to move most of my open source code to GitHub.
This will allow easy bug fixing and extending by other developers.
Also GitHub is hip and new 
Check out my GitHub page: https://github.com/rckoenes
As some of you might have noticed, the images weren’t working.
They all pointed to the old test domain I used to build this site, oeps.
I didn’t see it at first, because the images where in my browsers cache.
After some hardcore SQL queries everything looks like it should.
You have probably noticed the new site. I’ve been working on it for last couple of months. I hoop you like the new look. This new site has become more of a portfolio for my work and a blog for my thoughts.