View Hierarchy
Manage the subviews, superview, and window of a view and respond to notifications when the view hierarchy changes.
Topics
Getting the Related Objects
superviewsubviewswindowopaqueAncestorisDescendant(of:)ancestorShared(with:)enclosingMenuItemenclosingScrollView
Adding and Removing Subviews
addSubview(_:)addSubview(_:positioned:relativeTo:)removeFromSuperview()removeFromSuperviewWithoutNeedingDisplay()replaceSubview(_:with:)sortSubviews(_:context:)
Responding to View-Related Notifications
didAddSubview(_:)viewDidMoveToSuperview()viewDidMoveToWindow()viewWillMove(toSuperview:)viewWillMove(toWindow:)willRemoveSubview(_:)