ios - UILabel doesn't fulfill numberOfLines -

i have address label can 2 or 3 lines depending on user's address:

123 street apt 5b mycity, mystate 12345

123 street mycity, mystate 12345

i make simple uilabel:

let label_addr = uilabel() label_addr.numberoflines = 3

i expect 3 lines tall, in second case. however, trims down 2 lines if don't use filler "\n". there way make respect numberoflines property?

ANy