禁用 iOS 11 大标题“捕捉”

Question

When large titles are enabled on iOS 11 and you scroll down or up and the title changes from large to inline ( automatic ), there is a "snapping" that you can feel.

The contacts app also has large titles, but it doesn't "snap" automatically.

How can I turn this behavior off?

Answer 1

I think I understand what you're asking for because I had a similar issue, perhaps you could provide a screen recording just to be sure?

I faced this issue when setting a custom barTintColor , in my case .white which would cause the effect that I think you're describing.

I fixed this by making my bar translucent and setting the tint to UIColor(red: 255/255, green: 255/255, blue: 255/255, alpha: 0.99) .

Hope that helps you!

Answer 2

I've found there are a few things that can cause this:

• The UIScrollView (table view, collection view, etc) top is pinned to the safe area. It should be pinned to its superview instead.
• The nav bar is opaque but the VC's extendedLayoutIncludesOpaqueBars is false. This can be set in the storyboard or in code.
• The VC's edgesForExtendedLayout doesn't include the top bar. It needs to.