private static NSAttributedString CreateTitleString(StyledNavigationBarPage page)
{
if (page == null)
{
return(null);
}
bool hasSubTitle = !string.IsNullOrEmpty(page.Subtitle);
var font = hasSubTitle ? page.TitleFont : page.TitleOnlyFont;
var titleAttributedString = font.BuildAttributedString(!String.IsNullOrWhiteSpace(page.Title) ? page.Title : "");
return(titleAttributedString);
}
private static UIView BuildSubTitleView(StyledNavigationBarPage page)
{
bool hasSubTitle = !string.IsNullOrEmpty(page.Subtitle);
var titleLabel = new UILabel(new CoreGraphics.CGRect(0, 0, 0, 0));
titleLabel.Tag = 100;
var titleAttributedString = CreateTitleString(page);
titleLabel.AdjustsFontSizeToFitWidth = true;
titleLabel.AttributedText = titleAttributedString;
titleLabel.SizeToFit();
if (hasSubTitle)
{
var subtitleLabel = new UILabel(new CoreGraphics.CGRect(0, titleLabel.Frame.Height, 0, 0));
subtitleLabel.Tag = 200;
var subTitleAttributedString = page.SubtitleFont.BuildAttributedString(page.Subtitle);
subtitleLabel.AttributedText = subTitleAttributedString;
subtitleLabel.SizeToFit();
var view = new UIView(new CoreGraphics.CGRect(0, 0, Math.Max(titleLabel.Frame.Width, subtitleLabel.Frame.Width), titleLabel.Frame.Height + subtitleLabel.Frame.Height));
// Center title or subtitle on screen (depending on which is larger)
if (titleLabel.Frame.Width >= subtitleLabel.Frame.Width)
{
var adjustment = subtitleLabel.Frame;
adjustment.Location = new CoreGraphics.CGPoint(view.Frame.Left + view.Frame.Width / 2 - subtitleLabel.Frame.Width / 2, adjustment.Top);
subtitleLabel.Frame = adjustment;
}
else
{
var adjustment = titleLabel.Frame;
adjustment.Location = new CoreGraphics.CGPoint(view.Frame.Left + view.Frame.Width / 2 - titleLabel.Frame.Width / 2, adjustment.Top);
titleLabel.Frame = adjustment;
}
view.Add(titleLabel);
view.Add(subtitleLabel);
return(view);
}
else
{
return(titleLabel);
}
}
