my pet peeve with 1 is that its hashmap, i.e. get ...

# android

[ursus]

my pet peeve with 1 is that its hashmap, i.e. get takes some time (altho quick, its still a computation), versus 2 butterknife which is direct view reference, when referring to the view, however you do get ugly nullable vars syntax if used in fragments, and potentially codegen slows builds, so pick your poison