Black flashes in iOS App Navigation Bar

Question

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.

Notice the black flashes in the upper right hand corner behind the navigation bar

Possible duplicate of [Dark shadow on navigation bar during segue transition after upgrading to Xcode 5.1 and iOS 7.1](https://stackoverflow.com/questions/22413193/dark-shadow-on-navigation-bar-during-segue-transition-after-upgrading-to-xcode-5) — Sti, Oct 03 '17 at 15:44
Stackoverflow won't let me post images directly yet, but the link in the question shows it in a gif. — Joseph Camuso, Oct 03 '17 at 21:05

score 15 · Accepted Answer · answered Oct 04 '17 at 12:36

15

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

answered Oct 04 '17 at 12:36

Au Ris

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Great! That first one worked for me! Thanks a million! – Joseph Camuso Oct 06 '17 at 16:45
The second one helped with a white gap flickering in the navigation bar. Thank you! – CocoaNuts Aug 24 '19 at 10:18

score 1 · Answer 2 · answered Oct 03 '17 at 15:42

1

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.

answered Oct 03 '17 at 15:42

jrturton

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Ok, I'll try that – Joseph Camuso Oct 03 '17 at 21:03

Black flashes in iOS App Navigation Bar

2 Answers2