Author Archives: admin

Scala for (i <- 0 to n) : nice but slow

Posted on 2012-12-30 by admin

I was playing around with prime numbers when I noticed that one of the implementations was several times faster than the other one. Benchmarking the two implementations soon showed that the differences lies mainly in using the nicer for (i

Posted in Development, Scala | Leave a comment

Android Wiki Spiderweb 2.0 released

Posted on 2011-11-10 by admin

Version 2.0 of the Wiki Spiderweb application for Android has been released on the Android Market. Changes in 2.0: Show images from Wikipedia as nodes. Show preview images in search results. Visited connections turn blue. Hide keyboard after search.

Posted in Android, Applications | Leave a comment

Use app version to show a dialog only after update

Posted on 2011-11-05 by admin

I decided to enhance my Android app so that it will show a little dialog with the newest features after starting. If this dialog would show up after every start it would be very annoying. The goal is to show … Continue reading →

Posted in Android, Java, Tips and Tricks | Leave a comment

Android Wiki Spiderweb 1.5 released

Posted on 2011-11-05 by admin

Version 1.5 of the Wiki Spiderweb application for Android has been released on the Android Market. Changes in 1.5: Double tap the empty space to zoom until all nodes fit on the screen. Improved zooming gesture to avoid occasional jumps. … Continue reading →

Posted in Android, Applications | Leave a comment

Make an App available on Android 1.5 and small screen

Posted on 2011-10-28 by admin

I have always published my simpler Android applications for all Android devices version 1.5 and higher. I thought this would allow the application to run on the maximal number of devices. Recently I bought a new Android phone for testing: … Continue reading →

Posted in Android | Tagged , , , , , | Leave a comment

How Scala influenced my Java Programming

Posted on 2011-09-12 by admin

For a while I have been experimenting in my free time with Scala. While I don’t believe that I will use Scala at work in the near future I have nevertheless noticed that Scala has changed the way I think … Continue reading →

Posted in Development, Java, Scala | Tagged , , , , , , , , | Leave a comment

Android Invasion Published

Posted on 2011-05-31 by admin

The free Invasion application for Android has been published on the Android Market. Thanks to all the encouraging feedback and enthusiastic testers: Adrian, Thomas, Irena

Posted in Android, Applications | Tagged , , , | Leave a comment

Managing Android Applications with Library Projects

Posted on 2011-05-24 by admin

It can be quite challenging to develop an Android application that should be published in several versions on the Android Market. The main reason for this is the strange and unpredictable way that Android library projects work in Eclipse. The … Continue reading →

Posted in Android, Development | Tagged , , , | Leave a comment

Using Force-Based Graphs

Posted on 2011-05-23 by admin

This is a collection of my experiences using force-based algorithms to draw graphs. I used this algorithm in the Wiki Spiderweb application. Here the good points: Easy to implement Natural looking results User interaction is possible Some influence of placement … Continue reading →

Posted in Development | Tagged , , , | Leave a comment

Android Wiki Spiderweb Trial 1.1 released

Posted on 2011-05-17 by admin

The free trial version 1.1 of the Wiki Spiderweb application for Android has been released on the Android Market. This allows to experiment with the application without having to spend money. Only the Search functionality that is not available in … Continue reading →

Posted in Android, Applications | Tagged , , , | Leave a comment