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

Warren Milward's answer helped me to guide me in the right direction, but actually I got it working with viewDidLoad().

I ended up using a subclass for the UISplitViewController and set the required values in viewDidLoad() as well as the delegate calls here.

class CustomSplitViewController: UISplitViewController, UISplitViewControllerDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

        self.delegate = self
        self.preferredDisplayMode = .allVisible
    }

    func splitViewController(_ splitViewController: UISplitViewController, collapseSecondary secondaryViewController: UIViewController, onto primaryViewController: UIViewController) -> Bool {
        return true
    }
}