OSC on Android

I just bought myself a HTC Hero so im starting to learn all the Android development stuff.

So the first thing i’ve tried is to see how easy it is to get my OSCLib stuff working. There isnt a lot to the actual library itself as most of the hard work is handled by Apache Mina. I started a new Android project in eclipse and just tried to send a simple OSC message to a test server on my local machine. It didnt work, the dalvik VM told me I had a verify error. I eventually narrowed this down to the SLF4J library. At this stage I had no clue about how to fix it so back to google to see if someone else had done the hardwork. :)

I found this thread where Thorsten Möller says he actually has a version of slf4j but its not on the main site yet, just in his git repo. So after a clone of that and a run of maven I had a shiny new slf4j-android.jar which I’ve upload to my site here.

I added that jar to the dependencies of my OscAndroDemo test project and it worked. Easy. :)

All the source is available from the OSCLib assembla project. The main library is in /trunk/java, its an eclipse project and in there you can run the OSCServer class for testing. It’ll spit out some info to stdout when it receives a message. The android project is in /trunk/android/AndrOscDemo which you can check out from SVN directly into eclipse.

The demo just connects to and sends a single message. The next stage is to try and do some interesting stuff with the various sensors like the accelerometer and see if any issues arrive once I start sending lots of messages.