public Header()
{
ClipsToBounds = true;
_label = this.Add<UILabel>();
_imageCollapsed = UIImage.FromBundle("collapsed-left");
_imageExpanded = UIImage.FromBundle("expanded-down");
_imageView = new UIImageView(_imageCollapsed);
Add(_imageView);
const int margin = 10;
_imageView
.Anchor(NSLayoutAttribute.Top, this, NSLayoutAttribute.Top, margin)
.Anchor(NSLayoutAttribute.Right, this, NSLayoutAttribute.Right, -margin)
.Anchor(NSLayoutAttribute.Bottom, this, NSLayoutAttribute.Bottom, -margin)
.Layout(NSLayoutAttribute.Height, _imageView.Image.Size.Height)
.Layout(NSLayoutAttribute.Width, _imageView.Image.Size.Width);
_label
.Anchor(NSLayoutAttribute.Left, this, NSLayoutAttribute.Left, margin)
.Anchor(NSLayoutAttribute.CenterY, this, NSLayoutAttribute.CenterY)
.Anchor(NSLayoutAttribute.Right, _imageView, NSLayoutAttribute.Left, -margin);
}