public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
{
View itemView = LayoutInflater.From(parent.Context).Inflate(Resource.Layout.AdvertisementItemRowView, parent, false);
AdvertisementItemViewHolder vh = new AdvertisementItemViewHolder(itemView, OnAdvertisementItemClick, OnDeleteAdvertisementClick, OnEditAdvertisementClick);
return(vh);
}
public override async void OnBindViewHolder(RecyclerView.ViewHolder holder, int position)
{
var currentItem = this.AdvertisementItems[position];
AdvertisementItemViewHolder vh = holder as AdvertisementItemViewHolder;
if (advertisementsKind == AdvertisementsKind.AdvertisementsCreatedByUser || advertisementsKind == AdvertisementsKind.FavouritesAdvertisements)
{
vh.DeleteAdvertisementFab.Visibility = ViewStates.Visible;
if (advertisementsKind == AdvertisementsKind.AdvertisementsCreatedByUser)
{
if (currentItem.IsExpired)
{
vh.DeleteAdvertisementFab.SetImageResource(Resource.Drawable.restart);
vh.EditAdvertisementFab.Visibility = ViewStates.Invisible;
}
else
{
vh.EditAdvertisementFab.Visibility = ViewStates.Visible;
vh.EditAdvertisementFab.BringToFront();
}
}
}
else
{
vh.EditAdvertisementFab.Visibility = ViewStates.Invisible;
vh.DeleteAdvertisementFab.Visibility = ViewStates.Invisible;
}
if (currentItem.IsSellerOnline)
{
vh.SellerChatStateImageView.SetBackgroundResource(Resource.Drawable.rounded_chat_state_online);
}
else
{
vh.SellerChatStateImageView.SetBackgroundResource(Resource.Drawable.rounded_chat_state_offline);
}
if (currentItem.IsOnlyForSell)
{
vh.AdvertisementKindTextView.Text = "tylko sprzeda¿";
}
vh.SizeTextView.Text = $"Rozmiar: {currentItem.Size.GetDisplayName()}";
vh.DistanceTextView.Text = String.Format("{0} km", currentItem.Distance);
vh.TitleTextView.Text = currentItem.AdvertisementTitle;
vh.PriceTextView.Text = String.Format("{0} z³", currentItem.AdvertisementPrice);
vh.PhotoImageView.SetImageBitmap(await bitmapOperationService.GetScaledDownBitmapForDisplayAsync(currentItem.MainPhoto));
RaiseOnInfiniteScrollWhenItemIsLastInList(currentItem, vh);
if (createdCount % 60 == 0)
{
//clean bitmaps after 60 attaches to avoid OOM Exception
GC.Collect();
}
createdCount++;
}
private void RaiseOnInfiniteScrollWhenItemIsLastInList(AdvertisementItemShort currentItem, AdvertisementItemViewHolder viewHolder)
{
if (this.AdvertisementItems.IndexOf(currentItem) == (this.AdvertisementItems.Count - 1) && !InfiniteScrollDisabled)
{
this.infiniteScrollListener.OnInfiniteScroll();
}
}
