addConstraint(_:)
Adds the specified constraint to the layer.
Declaration
func addConstraint(_ c: CAConstraint)Parameters
- c:
The constraint object to add to the receiver’s array of constraint objects.
Discussion
In macOS, you typically add constraints to a layer to manage the size and position of that layer’s sublayers. Before constraints can be applied, you must also assign a CAConstraintLayoutManager object to the layoutManager property of the layer. For more information about managing layer-based constraints, see Core Animation Programming Guide.
iOS apps do not support layer-based constraints.