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

did you try this one (UISplitViewControllerDelegate):

self.preferredDisplayMode = .allVisible

&

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

Answer 2

Try MasterViewController_Instance.view.layoutIfNeeded() inside Splitviewcontroller ViewDidLoad() method. It fixed my problem.

class CustomSplitController: UISplitViewController{ 
    override public func viewDidLoad() {

        MASTER_CONTROLLER_INSTANCE.view.layoutIfNeeded()
        //If you are using navigation controller in master controller try 
        MASTER_CONTROLLER_INSTANCE.navigationController?.view.layoutIfNeeded()
    }
}

Answer 3

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.

Answer 4

For those who use storyboard and configure the new controller in a subclass from UIStoryboardSegue, it'll be simpler:

just before [source presentViewController:destination animated:YES completion:nil];, just set destination.modalPresentationStyle = UIModalPresentationFullScreen;, because the default is now UIModalPresentationPageSheet.

Answer 5

I set the spliteViewController's delegate on appdelegate, and it worked

Answer 6

As many answers here leads to change in the Split View Controller starting sequence, I realized, that on compact size it performs vewDidLoad on detail controller ONLY. But awakeFromNib is called on every controller. So - I've just transfer my code from viewDidLoad to awakeFromNib and everything now is works perfectly!

override func awakeFromNib() {
    super.awakeFromNib()

    if let splitController = splitViewController {
        splitController.delegate = self
    }
}