internal LayoutConstraint AddConstraint(IProperty from, LayoutSupport to, Coefficients coefficients = null, NSLayoutRelation relation = default(NSLayoutRelation))
{
if (coefficients == null)
{
coefficients = new Coefficients();
}
from.View.TranslatesAutoresizingMaskIntoConstraints = false;
var constraint = NSLayoutConstraint.Create(
from.View,
from.Attribute,
relation,
to.LayoutGuide,
to.Attribute,
coefficients.Multiplier,
coefficients.Constant
);
var view = from.View;
while (view?.Superview != null)
{
view = view.Superview;
}
_constraints.Add(new Constraint(view, constraint));
return(constraint);
}
public LayoutConstraint Equal(LayoutSupport support)
{
return(Context.AddConstraint(this, to: support));
}
public LayoutConstraint GreaterThanOrEqualTo(LayoutSupport support)
{
return(Context.AddConstraint(this, to: support, relation: NSLayoutRelation.GreaterThanOrEqual));
}