I ended up on this thread again, I will care to reply again because everyone seems to be retard.
You can reinvent the WHEEL, YOU MUST TO. How the fuck are you going to learn how to do stuff by yourself? Obvious answer no?
The issue here is/was that you tried to show a preview/showoff an app that is quite easy to do, AND has nothing special about it. Not no mention all the obfuscation part.
Good thing it helped you, that is the point, its just pointless to tell the 'world' that you managed to do something that almost everyone can.