For your requirements, I haven't investigated much but the wrapper covers most scenarios. It can indeed be a bit tricky but if you follow the WhatsApp sample posted by me and looking at the code you linked to, you should be able to figure it out.
If not, as mentioned in the library thread, I could probably make things easier by doing a custom-library. If this is something which may interest you, then contact me by PM and we can discuss it further.
searched on the sources for a bit, seems like the tutorial example (the one with whatsapp) does not catch the "TYPE_VIEW_TEXT_CHANGED" event. is it because of the setting in the manifest editor or something else?