public AdvertisementItemListAdapter(Activity context, List<AdvertisementItemShort> advertisementItems, IInfiniteScrollListener infiniteScrollListener) {
			this.AdvertisementItems = advertisementItems;
			this.context = context;
			this.bitmapOperationService = new BitmapOperationService();
			this.infiniteScrollListener = infiniteScrollListener;
			CalculateSizeForPhotoImageView();
		}
		public AdvertisementItemDetailsActivity() {
			this.advertisementItemService = new AdvertisementItemService();
			this.bitmapOperationService = new BitmapOperationService();
			messagesService = new MessagesService();
		}
		public AddNewAdvertisementActivity() {
			this.bitmapOperationService = new BitmapOperationService();
			this.advertisementItemService = new AdvertisementItemService();
			this.sharedPreferencesHelper = new SharedPreferencesHelper(this);
		}