public static NSLayoutConstraint AlignBottomAnchor(this UIView view, NSLayoutYAxisAnchor anchor, float constant)
{
var constraint = view.BottomAnchor.ConstraintEqualTo(anchor, -constant);
constraint.Active = true;
return(constraint);
}
/// <summary>
/// Constraint centreY anchor to an anchor.
/// </summary>
public static T ConstraintCentreYEqualTo <T>(this T view, NSLayoutYAxisAnchor anchor, nfloat constant = default, LayoutConstraints constraints = default) where T : UIView
{
var centerYConstraint = view.CenterYAnchor.ConstraintEqualTo(anchor, constant);
if (constraints != null)
{
constraints.CenterY = centerYConstraint;
}
centerYConstraint.Active = true;
return(view);
}
/// <summary>
/// Constraint bottom anchor to an anchor.
/// </summary>
public static T ConstraintBottomEqualTo <T>(this T view, NSLayoutYAxisAnchor anchor, nfloat constant = default, LayoutConstraints constraints = default) where T : UIView
{
var bottomConstraint = view.BottomAnchor.ConstraintEqualTo(anchor, -constant);
if (constraints != null)
{
constraints.Bottom = bottomConstraint;
}
bottomConstraint.Active = true;
return(view);
}
/// <summary>
/// Constraint top anchor to an anchor.
/// </summary>
public static T ConstraintTopEqualTo <T>(this T view, NSLayoutYAxisAnchor anchor, nfloat constant = default, LayoutConstraints constraints = default) where T : UIView
{
var topConstraint = view.TopAnchor.ConstraintEqualTo(anchor, constant);
if (constraints != null)
{
constraints.Top = topConstraint;
}
topConstraint.Active = true;
return(view);
}
void AnchorEqual(NSLayoutYAxisAnchor target, NSLayoutYAxisAnchor host, nfloat margin) => target.ConstraintEqualTo(host, margin).Active = true;
