Arrangement of ‘Roulette’ by System of a Down

What’s better than a present for Christmas, that’s both for the presentee and the presenter. I was lucky enough to have this opportunity this year and arranged the song Roulette by System of a Down for a friend of mine, Clara and the TU Choir. I’ve created an arrangement for four voices and am looking forward to sing it soon.

System of a Down – Roulette (for SATB choir)

Continuous Integration for Mobile Apps

Cloud CI-Provider (incomplete)

More CI-Provider (incomplete)

Tools to improve automation of build, deployment, crash-reporting, beta-testing, etc.

Tools to improve your Android development (e.g. testing, dependency injection)


Implementing an Offline Maps Engine on Android

Recently, we successfully finished the prototype phase on a project with the goal of developing a map tool similar to Google Maps for the Android platform. The initial use-case for the prototype was the following: Their employees regularly walk through remote regions with a map that contains location-specific information, observe the area and take notes that are relevant for their business goal. However, these areas often lack mobile internet, therefore an online solution like Google Maps was no option. We took up the challenge to find the best solution for our customer and within a few weeks built a prototype that solved two major technical challenges: How to integrate custom map-data into an Android app and how to make the app offline-usable.

Read the full article in the Zühlke Blog where it has been published originally.

Automated testing of Android Applications

How to test your Android app as automatic as possible? It’s a non-trivial question. In this article (written in German), I try to answer this question and other questions like: “How to mock classes in Java?” or “How to bring the application into a specific state?”. And last but not least, how to create UI-tests that reflect typical usage scenarios?

You can read the full article in the Zühlke Blog where it has been originally published.