Instance Property

constant

The constant added to the multiplied second attribute participating in the constraint.

Declaration

var constant: CGFloat { get set }

Discussion

Unlike the other properties, the constant can be modified after constraint creation. Setting the constant on an existing constraint performs much better than removing the constraint and adding a new one that's exactly like the old except that it has a different constant.

See Also

Accessing Constraint Data

var firstItem: AnyObject?

The first object participating in the constraint.

var firstAttribute: NSLayoutAttribute

The attribute of the first object participating in the constraint.

var relation: NSLayoutRelation

The relation between the two attributes in the constraint.

var secondItem: AnyObject?

The second object participating in the constraint.

var secondAttribute: NSLayoutAttribute

The attribute of the second object participating in the constraint.

var multiplier: CGFloat

The multiplier applied to the second attribute participating in the constraint.