Contents

visualizeConstraints(_:)

Displays a visual representation of the supplied constraints in the window.

Declaration

func visualizeConstraints(_ constraints: [NSLayoutConstraint]?)

Parameters

  • constraints:

    The constraints to visualize. All constraints must be held by views in the window.

Discussion

The constraints to visualize are typically discovered by identifying a view whose layout is unexpected and then calling constraintsAffectingLayout(for:) on that view.

This method should only be used for debugging constraint-based layout. No application should ship with calls to this method as part of its operation.