private void SetupNavBar(CGSize size) { if (NavigationController != null && titleView != null) { var page = Element as Page; containerView.Frame = new CGRect(0, 0, size.Width, size.Height); titleView.Layer.BorderWidth = ExtendedNavigationPage.GetTitleBorderWidth(Element); titleView.Layer.CornerRadius = ExtendedNavigationPage.GetTitleBorderCornerRadius(Element); titleView.Layer.BorderColor = ExtendedNavigationPage.GetTitleBorderColor(Element)?.ToCGColor() ?? UIColor.Clear.CGColor; SetupTextFont(titleLabel, ExtendedNavigationPage.GetTitleFont(page), ExtendedNavigationPage.GetTitleColor(page)); SetupBackground(); if (!string.IsNullOrEmpty(ExtendedNavigationPage.GetTitleBackground(Element))) { try { var image = UIImage.FromBundle(ExtendedNavigationPage.GetTitleBackground(Element)); titleView.Frame = new CGRect(titleView.Frame.X, titleView.Frame.Y, titleView.Frame.Width == 0?Math.Min(size.Width, image.Size.Width): Math.Min(titleView.Frame.Width, image.Size.Width), titleView.Frame.Height == 0 ? Math.Min(size.Height, image.Size.Height) : Math.Min(titleView.Frame.Height, image.Size.Height)); titleView.BackgroundColor = UIColor.FromPatternImage(image); } catch (Exception ex) { titleView.BackgroundColor = ExtendedNavigationPage.GetTitleFillColor(Element)?.ToUIColor() ?? UIColor.Clear; } } else { titleView.BackgroundColor = ExtendedNavigationPage.GetTitleFillColor(Element)?.ToUIColor() ?? UIColor.Clear; } ParentViewController.NavigationItem.TitleView = containerView; ParentViewController.NavigationItem.TitleView.SetNeedsDisplay(); } }
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; } }
private void SetTitlePosition(TitleAlignment alignment, Thickness padding, Thickness margin, CGRect vFrame) { var marginX = margin.Top; var marginY = margin.Left; var marginWidth = margin.Left + margin.Right; var marginHeight = margin.Top + margin.Bottom; var paddingWidth = padding.Left + padding.Right; var paddingHeight = padding.Top + padding.Bottom; var paddingX = padding.Left; var paddingY = padding.Top; if (ExtendedNavigationPage.GetTitleBackground(Element) != null && vFrame.Width == 0 && vFrame.Height == 0) { vFrame = titleView.Frame; } marginView.Frame = new CGRect(vFrame.X, vFrame.Y, vFrame.Width, vFrame.Height); double offset = 0; titleLabel.AutoresizingMask = UIViewAutoresizing.All; switch (alignment) { case TitleAlignment.Start: marginView.Frame = new CGRect(vFrame.X, marginView.Frame.Y, marginView.Bounds.Width + marginWidth + paddingWidth, marginView.Bounds.Height + marginHeight + paddingHeight); var startCenter = marginView.Center; startCenter.Y = marginView.Superview.Center.Y; marginView.Center = startCenter; titleLabel.TextAlignment = UITextAlignment.Left; subtitleLabel.TextAlignment = UITextAlignment.Left; offset = marginX; break; case TitleAlignment.Center: offset = marginX; marginView.Frame = new CGRect(marginView.Frame.X, marginView.Frame.Y, marginView.Bounds.Width + marginWidth + paddingWidth, marginView.Bounds.Height + marginHeight + paddingHeight); marginView.Center = marginView.Superview.Center; titleLabel.TextAlignment = UITextAlignment.Center; subtitleLabel.TextAlignment = UITextAlignment.Center; break; case TitleAlignment.End: var endCenter = marginView.Center; endCenter.Y = marginView.Superview.Center.Y; marginView.Center = endCenter; titleLabel.TextAlignment = UITextAlignment.Right; subtitleLabel.TextAlignment = UITextAlignment.Right; marginView.Frame = new CGRect(marginView.Superview.Frame.Width - marginView.Frame.Width - offset - marginWidth - paddingWidth, marginView.Frame.Y, marginView.Bounds.Width + marginWidth + paddingWidth, marginView.Bounds.Height + marginHeight + paddingHeight); offset = marginView.Frame.Width - vFrame.Width - paddingWidth - marginX; break; } titleView.Frame = new CGRect(offset, vFrame.Y + marginY, vFrame.Width + paddingWidth, vFrame.Height + paddingHeight); var cPage = Element as ContentPage; var formattedSubtitle = CustomPage.GetFormattedSubtitle(Element); var subtitle = CustomPage.GetFormattedSubtitle(Element); if (cPage != null && (!string.IsNullOrEmpty(subtitle) || (formattedSubtitle != null && formattedSubtitle.Spans.Count > 0))) { titleLabel.Frame = new CGRect(paddingX, paddingY, titleView.Frame.Width, titleLabel.IntrinsicContentSize.Height); subtitleLabel.Frame = new CGRect(titleLabel.Frame.X, titleLabel.Frame.Y + titleLabel.Frame.Height + 3, titleView.Frame.Width, subtitleLabel.Frame.Height); } else { titleLabel.Frame = new CGRect(paddingX, paddingY, titleLabel.IntrinsicContentSize.Width, titleLabel.IntrinsicContentSize.Height); } }