Type Property

required

A required constraint.

Declaration

static let required: UILayoutPriority

Discussion

Do not specify a layout constraint that exceeds this number.

See Also

Getting the Layout Priority

var priority: UILayoutPriority

The priority of the constraint.

struct UILayoutPriority

The layout priority is used to indicate to the constraint-based layout system which constraints are more important, allowing the system to make appropriate tradeoffs when satisfying the constraints of the system as a whole.

static let defaultHigh: UILayoutPriority

The priority level with which a button resists compressing its content.

static let defaultLow: UILayoutPriority

The priority level at which a button hugs its contents horizontally.

static let fittingSizeLevel: UILayoutPriority

The priority level with which the view wants to conform to the target size in that computation.

struct NSLayoutConstraint.Priority

Layout priority used to indicate the relative importance of constraints, allowing Auto Layout to make appropriate tradeoffs when satisfying the constraints of the system as a whole.