In case someone still searching for the solution. Place your UISplitViewController in container viewcontroller. Just plain UIViewController but with UISplitViewController view added on it's own view override func viewDidLoad() { super.viewDidLoad() addChild(splitVC) view.addSubview(splitVC.view)         NSLayoutConstraint.activate([ splitVC.view.topAnchor.constraint(equalTo: view.topAnchor),         splitVC.view.bottomAnchor.constraint(equalTo: view.bottomAnchor),         splitVC.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),         splitVC.view.trailingAnchor.constraint(equalTo: view.trailingAnchor) ]) splitVC.didMove(toParent: self) }