package Ġpl . k amil sz ust ak . just fit . ui . authentication Ċ Ċ import Ġpl . k amil sz ust ak . just fit . R Ċ import Ġpl . k amil sz ust ak . just fit . ui . base . Base Activity Ċ Ċ class ĠAuthentication Activity Ġ: ĠBase Activity ( R . layout . activity _ authentication )