Recently, Square engineers confirmed my doubts I always had about fragments. I definitely knew that something was wrong with them, but Google introduced fragments into Android API, so I thought it must be okay for some reason and I tried to live with them feeling pain. Finally, concrete company have written an article criticizing Android Fragments and I totally agree with them. Read the article at: http://corner.squareup.com/2014/10/advocating-against-android-fragments.html.