NSLayoutConstraint.Attribute.notAnAttribute
A placeholder value for indicating that the constraint’s second item and second attribute aren’t used in any calculations.
Declaration
case notAnAttributeDiscussion
Use this value when creating a constraint that assigns a constant to an attribute. For example, item1.height >= 40. If a constraint only has one item, set the second item to nil, and set the second attribute to NSLayoutConstraint.Attribute.notAnAttribute.
See Also
Constants
NSLayoutConstraint.Attribute.leftNSLayoutConstraint.Attribute.rightNSLayoutConstraint.Attribute.topNSLayoutConstraint.Attribute.bottomNSLayoutConstraint.Attribute.leadingNSLayoutConstraint.Attribute.trailingNSLayoutConstraint.Attribute.widthNSLayoutConstraint.Attribute.heightNSLayoutConstraint.Attribute.centerXNSLayoutConstraint.Attribute.centerYNSLayoutConstraint.Attribute.lastBaselineNSLayoutConstraint.Attribute.firstBaselineNSLayoutConstraint.Attribute.leftMarginNSLayoutConstraint.Attribute.rightMarginNSLayoutConstraint.Attribute.topMargin