private void SetupTextFont(UILabel label, Font font, Color?titleColor)
{
if (Element is ContentPage cPage)
{
var formattedTitle = CustomPage.GetFormattedTitle(cPage);
if (formattedTitle != null && formattedTitle.Spans.Count > 0)
{
SetupFormattedText(titleLabel, formattedTitle, cPage.Title);
}
var formattedSubtitle = CustomPage.GetFormattedSubtitle(cPage);
var subtitle = CustomPage.GetSubtitle(cPage);
if (formattedSubtitle != null && formattedSubtitle.Spans.Count > 0)
{
subtitleLabel.Hidden = false;
SetupFormattedText(subtitleLabel, formattedSubtitle, subtitle);
}
else if (!string.IsNullOrWhiteSpace(subtitle))
{
subtitleLabel.Hidden = false;
SetupText(subtitleLabel, subtitle, ExtendedNavigationPage.GetSubtitleColor(cPage), ExtendedNavigationPage.GetSubtitleFont(Element));
subtitleLabel.SetNeedsDisplay();
}
}
else
{
SetupText(label, (Element as Page).Title, titleColor, ExtendedNavigationPage.GetTitleFont(Element));
subtitleLabel.Text = string.Empty;
subtitleLabel.Frame = CGRect.Empty;
subtitleLabel.Hidden = true;
}
label.SizeToFit();
subtitleLabel.SizeToFit();
titleView.SizeToFit();
}
private void Element_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
var page = sender as Page;
System.Diagnostics.Debug.WriteLine(e.PropertyName);
switch (e.PropertyName)
{
case Page.TitleProperty.PropertyName:
case ExtendedNavigationPage.TitleFontProperty.PropertyName:
case CustomPage.SubtitleProperty.PropertyName:
case ExtendedNavigationPage.SubtitleFontProperty.PropertyName:
SetupTextFont(titleLabel, ExtendedNavigationPage.GetTitleFont(page), ExtendedNavigationPage.GetTitleColor(page));
SetTitlePosition(ExtendedNavigationPage.GetTitlePosition(page), ExtendedNavigationPage.GetTitlePadding(Element), ExtendedNavigationPage.GetTitleMargin(Element), new CGRect(0, 0, Math.Max(subtitleLabel.IntrinsicContentSize.Width, titleLabel.IntrinsicContentSize.Width), (titleLabel.IntrinsicContentSize.Height + subtitleLabel.IntrinsicContentSize.Height + (subtitleLabel.IntrinsicContentSize.Height > 0.0f ? 3.0f : 0.0f))));
break;
case ExtendedNavigationPage.TitleColorProperty.PropertyName:
var titleColor = ExtendedNavigationPage.GetTitleColor(page);
if (titleColor.HasValue)
{
titleLabel.TextColor = titleColor.Value.ToUIColor();
}
break;
case ExtendedNavigationPage.SubtitleColorProperty.PropertyName:
var subtitleColor = ExtendedNavigationPage.GetSubtitleColor(page);
if (subtitleColor.HasValue)
{
subtitleLabel.TextColor = subtitleColor.Value.ToUIColor();
}
break;
case ExtendedNavigationPage.TitlePositionProperty.PropertyName:
case ExtendedNavigationPage.TitlePaddingProperty.PropertyName:
case ExtendedNavigationPage.TitleMarginProperty.PropertyName:
SetTitlePosition(ExtendedNavigationPage.GetTitlePosition(Element), ExtendedNavigationPage.GetTitlePadding(Element), ExtendedNavigationPage.GetTitleMargin(Element), new CGRect(0, 0, Math.Max(subtitleLabel.IntrinsicContentSize.Width, titleLabel.IntrinsicContentSize.Width), (titleLabel.IntrinsicContentSize.Height + subtitleLabel.IntrinsicContentSize.Height + (subtitleLabel.IntrinsicContentSize.Height > 0.0f ? 3.0f : 0.0f))));
break;
case ExtendedNavigationPage.GradientColorsProperty.PropertyName:
case ExtendedNavigationPage.GradientDirectionProperty.PropertyName:
case ExtendedNavigationPage.BarBackgroundProperty.PropertyName:
case ExtendedNavigationPage.BarBackgroundOpacityProperty.PropertyName:
SetupBackground();
break;
case ExtendedNavigationPage.HasShadowProperty.PropertyName:
SetupShadow(ExtendedNavigationPage.GetHasShadow(page));
break;
case ExtendedNavigationPage.TitleBackgroundProperty.PropertyName:
if (!string.IsNullOrEmpty(ExtendedNavigationPage.GetTitleBackground(Element)))
{
titleView.BackgroundColor = UIColor.FromPatternImage(UIImage.FromBundle(ExtendedNavigationPage.GetTitleBackground(Element)));
}
else
{
titleView.BackgroundColor = null;
}
break;
case nameof(ExtendedNavigationPage.TitleBorderWidth):
titleView.Layer.BorderWidth = ExtendedNavigationPage.GetTitleBorderWidth(Element);
break;
case nameof(ExtendedNavigationPage.TitleBorderCornerRadius):
titleView.Layer.CornerRadius = ExtendedNavigationPage.GetTitleBorderCornerRadius(Element);
break;
case nameof(ExtendedNavigationPage.TitleBorderColor):
titleView.Layer.BorderColor = ExtendedNavigationPage.GetTitleBorderColor(Element)?.ToCGColor() ?? UIColor.Clear.CGColor;
break;
case nameof(ExtendedNavigationPage.TitleFillColor):
titleView.BackgroundColor = ExtendedNavigationPage.GetTitleFillColor(Element)?.ToUIColor() ?? UIColor.Clear;
break;
case nameof(CustomPage.FormattedTitle):
if (page is ContentPage cPage)
{
SetupFormattedText(titleLabel, CustomPage.GetFormattedTitle(cPage), cPage.Title);
}
break;
}
}