I have TableView with several text fields and image. For Image loading I use SDWebImage Library.
Here is code for TableView Source
public class ExperienceSource : UITableViewSource
{
//UINavigationController instance, to pass it to constructor
private UINavigationController primNav { get; set; }
private UITableView tableView { get; set; }
List<Experience> TableItems;
ExperienceTableViewController owner;
public ExperienceSource(List<Experience> items,ExperienceTableViewController owner, UINavigationController nav)
{
TableItems = items;
this.owner = owner;
primNav = nav;
}
public override nint RowsInSection(UITableView tableview, nint section)
{
if (TableItems.Count == 0)
{
var noDataLabel = new UILabel
{
Text = "No Experiences at your location at this time. Try to change destination",
TextColor = UIColor.Black,
TextAlignment = UITextAlignment.Center,
LineBreakMode = UILineBreakMode.WordWrap,
Lines = 0
};
tableview.BackgroundView = noDataLabel;
tableview.SeparatorStyle = UITableViewCellSeparatorStyle.None;
return TableItems.Count;
}
else
{
tableview.BackgroundView = null;
tableview.SeparatorStyle = UITableViewCellSeparatorStyle.SingleLine;
return TableItems.Count;
}
}
public override async void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
var selectedExperience = await ExperienceMethods.GetSelectedTour(TableItems[indexPath.Row].id);
if (selectedExperience == "Saved")
{
ExperienceDetailViewController ExperienceDetailController = primNav.Storyboard.InstantiateViewController("ExperienceDetailViewController") as ExperienceDetailViewController;
primNav.PushViewController(ExperienceDetailController, true);
}
else
{
UIAlertController okAlertController = UIAlertController.Create("", "Cannot select this experience", UIAlertControllerStyle.Alert);
okAlertController.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
}
tableView.DeselectRow(indexPath, true);
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
var cell = tableView.DequeueReusableCell("cell_id", indexPath) as ExperienceCell;
Experience item = TableItems[indexPath.Row];
cell.UpdateCell(item);
return cell;
}
}
And here is code for CustomCell
public partial class ExperienceCell : UITableViewCell
{
UIImage picture;
public ExperienceCell (IntPtr handle) : base (handle)
{
}
internal void UpdateCell(Experience experience)
{
var image_url = "https://xplorpal.com/" + experience.cover_image.img_path + "/150x150/" + experience.cover_image.img_file;
/*using (var url = new NSUrl(image_url))
using (var data = NSData.FromUrl(url))
picture = UIImage.LoadFromData(data);
ExperienceImage.Image = picture;*/
ExperienceImage.SetImage(NSUrl.FromString(image_url),
UIImage.FromBundle("placeholder"),
SDWebImageOptions.RefreshCached);
ExperienceTitle.Text = experience.title;
ExperiencePrice.Text = "$" + experience.price;
}
}
My problem, that images appears in UIImage only after scrolling, or go to another ViewController and after, going back.
If I use commented code vs NSUrl
etc. All okay.
Where can be my problem? Why images not appears, when I using SDWebImage?
Thank's for help.