So I've been getting these black flashes when I segue from one view controller to another in my app. I don't understand what causes this.
2 Answers
It looks like you navigation controller's view backgroundColor is black. Either set it to your desired color, probably white:
navigationController?.view.backgroundColor = .white
or set your view controllers to extend edges, so the view of your view controller extends all the way under the navigation bar:
edgesForExtendedLayout = .all // or .top
Somewhere in the view hierarchy is a view with a black background. Use the view debugger in Xcode to find it, but it could possibly be your window or the navigation controller's view.
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