public static NSLayoutConstraint ConstraintOps(this UIView view, Action<ConstraintInfo> action)
{
var info = new ConstraintInfo();
action?.Invoke(info);
var constraint = NSLayoutConstraint.Create(
view,
info.Attribute,
info.Relation,
1,
info.Constant
);
constraint.SetIdentifier(info.Identifer);
view.AddConstraint(constraint);
return constraint;
}
public static NSLayoutConstraint ConstraintOps(this(UIView,UIView) tuple,Action<ConstraintInfo> action)
{
var info = new ConstraintInfo();
action?.Invoke(info);
info.SecondAttribute = info.SecondAttribute == NSLayoutAttribute.NoAttribute ?
info.Attribute : info.SecondAttribute;
var constraint = NSLayoutConstraint.Create(
tuple.Item2,
info.Attribute,
info.Relation,
tuple.Item1,
info.SecondAttribute,
1,
info.Constant
);
constraint.SetIdentifier(info.Identifer);
tuple.Item1.AddConstraint(constraint);
return constraint;
}