It works fine with version 1.2, problem solved.
Davdroid doesn't show up in "Kontakte zum Anzeigen"
As it doesn’t show up in contactlist, i cannot only select it.
But all contacts got synchronised, from server and to server, this works correctly. But it’s not identified as davdroid which means that everything is synced within the google account on my nexus 4.
I thought i could see such fancy little buttons like in your description to determine where the contact is located on, either smartphone or davdroid
related to #10
Fixed with 0.3.4-alpha please test