Skip to content
CocoaPods Logo

Using CocoaPods to manage your dependencies

One of the few things that I find really annoying about developing apps for the iOS platform is how cumbersome it is to include third party libraries in your projects. Depending on the complexity of the library (e.g. its respective dependencies and transitive dependencies) and the effort the authors put into the consumability of their library, the steps required to add a library to your project range from just copying a few files into your source folder to a whopping two-page description of drag’n’drop wizardry.
Read more

Fork me on GitHub

Tired of Typing? Speak to Your Computer!

For some reason, humans have always dreamt of using natural language to communicate with computers. Quite a number of movies have been made that revolve around this theme, 2001: A Space Odyssey and I, Robot (named after the great collection of SF stories by Isaac Asimov) just being two of them.
Read more

Filtering Coffee by tonx -

Using NSPredicate to Filter Data

Filtering data is one of the essential tasks in computing. With all the data available today, we need to apply certain limits and constraints to actually make it usable. What use is it to be able to scroll down a list of literally thousands of list items when you really care about one or two of them? Filtering and searching information make up a significant part of our work day – each time you use Google, you’re applying a filter to the huge set of data we call the internet.
Read more

A Gyroscope

How to Use the Gyroscope of Your iPhone in a Mobile Web App

This week’s release of iOS 4.2 for iPad and iPhone comes with some nice little features most people will not immediately become aware of as they’re neither directly visible in the iOS UI nor are they mentioned in Apple’s official release notes. You have to dig a little deeper to find them. One of them is a JavaScript API for the iPhone’s gyroscope. Read on to see it in action and learn how to use it. Read more

Recent Articles


Do Androids Dream of Electric Sheep?

Humans have always been fascinated by the idea of talking with machines. Almost no main stream science fiction movie exists that does not pick up the idea of audio-visual communication with computers, the most well-known probably being 2001 – A Space Odyssey, Blade Runner, Star Trek, The Hitchhiker’s Guide to the Galaxy and I, Robot.

Read moreRead more


Writing Xtext Scope Providers with Xtend

Scope is an important concept in the design of programming languages. In Xtext, scoping is used to drive two major parts of your DSL: linking and content assist. While Xtext applies the 80/20 rule very successfully, thereby providing you with a decent scoping implementation out of the box, eventually you’ll have to roll up your sleeves and write your own scope provider.

Read moreRead more

Twitter logo on iPhone

The Accounts and Twitter Framework on iOS 5

Adding Twitter support is something that makes quite a lot of sense for a number of applications. If you’re in a news reader application you might want to let your followers know about an interesting article you just read. If you’re in a conference schedule app, you not only want to let your followers know about the awesome talks you’re listening to but you also might want to know which other talks other conference attendees are tweeting about to decide whether they are actually even more awesome than that talk you’re stuck in…
Read moreRead more

Code Generation 2011 Apps for iPhone and Android

Code Generation 2011 – Don’t miss out!

Code Generation 2011 is just around the corner and if you haven’t booked yet, you should hurry up – a few places are still available!

Quite a number of my colleagues at itemis have been busy preparing for this conference in the past few weeks. Besides working hard to hit the Eclipse Release Train milestone for Indigo on June 22nd, the Xtext team brushed up their hands-on sessions “Xtext Take I: Creating Code Generators with Xtend2” and “Xtext Take II: Crafting Domain Specific Languages with Xtext and Xbase“. If you’ve been using Xtext, you’re well aware of the power you have at your disposal with this tool. Xbase and Xtend2, however, take this experience to a whole new level. So make sure to mark your calendar for these two sessions!
Read moreRead more

EclipseCon 2011

Save a Tree, Put EclipseCon 2011 in Your Pocket

After the huge success of the mobile apps for Eclipse Summit Europe, we decided to provide mobile apps for EclipseCon 2011, too. So instead of using a printed copy of the conference program, you can browse the schedule on your smart phone – wherever you are! Read moreRead more

Infinite Loop

Appropriate Use of MapKit

I just had an app rejected because of violation of the Google Maps terms of service. While it certainly is kind of funny Apple rejects an app because you’re violating Google’s terms of service, I was wondering what in particular was wrong. Read moreRead more


Three reasons why I think the HP TouchPad will rock the tablet market

Yesterday, HP introduced the Touchpad, an iPad-like tablet device that is programmed with web technologies. While this certainly isn’t the first attempt of a vendor to compete with Apple on the tablet market, I am convinced the TouchPad is a true challenger to the iPad. There are three reasons why the TouchPad might be a real contender: the programming environment, the manufacturing process and security. Read moreRead more