private double ComputeHeight(ImageCell element, CellTableViewCell target)
{
double height = 0;
var labelPreferredWidth = Globals.LogicalScreenWidth
- defaultImageViewLeftPadding
- element.ImageWidth
- leftPadding
- rightPadding;
// text
var textSize = new NSString(target.TextLabel.Text).GetBoundingRect(
new CGSize((nfloat)labelPreferredWidth, 0),
NSStringDrawingOptions.UsesLineFragmentOrigin, new UIStringAttributes
{
Font = target.TextLabel.Font
}, null);
height += textSize.Height;
// detail
var detailSize = new NSString(target.DetailTextLabel.Text).GetBoundingRect(
new CGSize((nfloat)labelPreferredWidth, 0),
NSStringDrawingOptions.UsesLineFragmentOrigin, new UIStringAttributes
{
Font = target.DetailTextLabel.Font
}, null);
height += detailSize.Height;
height = Math.Max(height, element.ImageHeight);
height += topPadding + bottomPadding;
return(height);
}
private void RenderCircle(ImageCell element, CellTableViewCell target)
{
if (element.RenderCircle)
{
double num = Math.Min(element.ImageWidth, element.ImageHeight);
target.ImageView.Layer.CornerRadius = (nfloat)(num / 2);
target.ImageView.Layer.MasksToBounds = false;
target.ImageView.ClipsToBounds = true;
}
else
{
target.ImageView.Layer.CornerRadius = 0;
}
}
private async void SetImage(ImageCell cell, CellTableViewCell target)
{
ImageSource imageSource = cell.ImageSource;
if (imageSource != null)
{
UIImage uiimage;
try
{
uiimage = await cell.ImageSource.GetUIImage();
}
catch (TaskCanceledException)
{
uiimage = null;
}
if (uiimage == null)
{
if (cell.ImagePlaceholder != null)
{
uiimage = UIImage.FromBundle(cell.ImagePlaceholder.File);
}
}
NSRunLoop.Main.BeginInvokeOnMainThread(delegate
{
if (uiimage != null && cell.ImageWidth > 0 && cell.ImageHeight > 0)
{
target.ImageView.Image = uiimage.Scale(new CGSize((nfloat)cell.ImageWidth, (nfloat)cell.ImageHeight), 0);
}
else
{
target.ImageView.Image = uiimage;
}
target.SetNeedsLayout();
});
}
else
{
target.ImageView.Image = null;
}
}
private void SetDetailFont(ImageCell element, CellTableViewCell target)
{
target.DetailTextLabel.Font = UIFont.FromName(element.DetailFontFamily, (nfloat)element.DetailFontSize);
}
