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iOS

Posted by Andrey Okhotin
Andrey Okhotin
3,186 Points

CollectionView FlowLayout while rotation. Outside the screen?

I add a collection view with story board to default ViewController scene. I add a navigation bar with default storyboard settings. Then i display some simple cells in collection view in code.

Lets say, that in portrait i have height of collectionView: 2000, and in landscape: 3000

Then if i do this:

  1. scroll to bottom in portrait
  2. rotate to landscape

collections view disappear from screen. It somewhere at the top of window, outside it.

BUT!!!

if i do the same WITHOUT navigation bar - all works fine, collection view is visible.

Why is that? Its a bug of iOS 7 and higher?

You can look at this demo project: http://www.filedropper.com/kira

Scroll to bottom in portrait, then rotait to landscape and you'll see that bug

or this source too:

http://www.megafileupload.com/4Yzs/Toys.zip

Matthew Strickland
Matthew Strickland
486 Points

Andrey Okhotin, what kind of auto layout constraints do you have setup for the UICollectionView in question?

Andrey Okhotin
Andrey Okhotin
3,186 Points

Hi, you can look at this demo project: http://www.megafileupload.com/4Yzs/Toys.zip

Scroll to bottom in portrait, then rotait to landscape and you'll see that bug