@Override
 public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   mUserLearnedDrawer =
       PreferencesEditor.getBooleanPreference(
           Dribbble.getContext(), PREF_USER_LEARNED_DRAWER, false);
 }
 @Override
 public void showPictureProfile(String avatarUrl) {
   Picasso.with(Dribbble.getContext()).load(avatarUrl).into(imageViewProfile);
 }