private void GetImage(TweetCellController controller, Tweet tweet)
{
controller.ImageView.Alpha = 0.0f;
if (!string.IsNullOrEmpty(tweet.AuthorImageUrl))
{
if (_images.ContainsKey(tweet.AuthorImageUrl))
{
UIImage imageThumbnail = _images[tweet.AuthorImageUrl];
controller.ImageView.Image = imageThumbnail;
controller.ImageView.Alpha = 1.0f;
}
else
{
controller.AuthorImageUrl = tweet.AuthorImageUrl;
ThreadPool.QueueUserWorkItem(RequestImage, controller);
}
}
}
private void RefreshImage(TweetCellController controller)
{
UIView.BeginAnimations("imageThumbnailTransitionIn");
UIView.SetAnimationDuration(0.5f);
controller.ImageView.Alpha = 1.0f;
UIView.CommitAnimations();
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
Tweet tweet = _tvc.Tweets[indexPath.Row];
TweetCellController cellController = null;
UITableViewCell cell = tableView.DequeueReusableCell(CELL_ID);
if (cell == null)
{
cellController = new TweetCellController();
NSBundle.MainBundle.LoadNib("TweetCellController", cellController, null);
cell = cellController.Cell;
cell.Tag = Environment.TickCount + indexPath.Row;
cell.SelectionStyle = UITableViewCellSelectionStyle.None;
GetImage(cellController, tweet);
_tvc.CellControllers.Add(cell.Tag, cellController);
}
else
{
cellController = _tvc.CellControllers[cell.Tag];
}
if (tweet != null)
{
// Size and position the text label
cellController.TextLabel.Text = tweet.Content;
cellController.NameLabel.Text = tweet.AuthorName;
cellController.DateLabel.Text = FriendlyDateTime.Get(tweet.Timestamp, DateTime.Now);
cellController.TextLabel.Frame = new RectangleF(58, 23, 258 /* 257? */, tweet.LabelSize.Height);
}
return cell;
}
