iOS 13 UISplitView Problems

Question

On iOS 13 Beta 5, I currently have problems with my UISplitView on iPhones.

My app starts with the detailsview off my splitview not with my masterview (look at the p

Answer 1

Alxlives's answer helped me. By using the debugger, I notice that in the master view controller, viewDidLoad is not called. So the delegate is never set, thus the collapse method is never called.

I fixed this by setting the delegate in awakeFromNib():

override func awakeFromNib() {
    self.splitViewController?.delegate = self
}

Now the splitViewController(_ splitViewController: UISplitViewController, collapseSecondary secondaryViewController: UIViewController, onto primaryViewController: UIViewController) -> Bool is called, and if you return true, the master will be displayed.