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iosswiftuiviewcontrolleruinavigationbaruisplitviewcontroller

UISplitViewController with iOS 11 large titles broken animation

When using the UISplitViewController in navigating from Master to Detail the navigation bar animation does not work as expected. It "jumps" up instead of a smooth animation.

Steps to Reproduce: Create project from template "Master detail App" in Xcode 9. Add the following code into MasterViewController in viewDidLoad:

navigationController?.navigationBar.prefersLargeTitles = true
navigationItem.largeTitleDisplayMode = .always

Add the following code in DetailViewController in viewDidLoad:

navigationItem.largeTitleDisplayMode = .never

Now navigate between Master and Detail in the iPhone simulator and you can see how the Navigation Bar "jumps" up on the DetailViewController instead of a smooth animation.

See video: https://youtu.be/p90I4VrM2fs

My assumption is that it has something to do with using two UINavigationController with the UISplitViewController. (which is how it is done)

enter image description here

Any ideas how to resolve this? Thanks.

Solution

  • I just found out the problem. prefersLargeTitles and largeTitleDisplayMode have to be set in awakeFromNib(), not in viewDidLoad().