How can a get the auto layout size of the UICollectionViewCells in iOS 8? (systemLayoutSizeFittingSize returns size with zero height in iOS 8)

Question

Since iOS 8 [UIColletionViewCell systemLayoutSizeFittingSize:UILayoutFittingCompressedSize] returns a size with height of 0.

Here\'s what the code

Answer 1

This is a bug in xCode6 and iOS 8 SDK running on iOS7 devices :) It almost waisted my day. Finally it worked with the below code in the UICollectionViewCell sub class. I hope this will be fixed with the next version

- (void)setBounds:(CGRect)bounds {
    [super setBounds:bounds];
    self.contentView.frame = bounds;
}

Answer 2

It was a bug in iOS 8 beta versions. Finally it is fixed with for iOS 8 GB (Build 12A365). So for me now it works with the same code I wrote for iOS 7. (see the question)

Answer 3

I had the same issue for UITableViewCells and iOS 7 (ios8 works perfectly), but "Triet Luong" solution worked for me:

return [sampleCell.containerView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize];

Answer 4

What you need to do is wrap all of your content in a container view, then call:

return [sampleCell.containerView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize];

Your cell should look like this: cell -> containerView -> sub views

This works on both ios7 & ios8.

Supposedly on ios8, all you have to do is set the estimateSize & cell will automatically auto size on its own. Apparently that's not working as of beta 6.

Answer 5

Looks like this officially a bug: I filed a report that was closed as a duplicate of this one

Will report back when Beta 6 is out.

[Update: working properly in the GM seed of iOS 8, and the bug has been closed by Apple.]

Answer 6

maybe you have some wrong constrain, you should specify both virtical top space and bottom space between your UIView and contentView, i also had this issue before, that is because i just specified the virtical top space, and didn't specfied the virtical bottom space to contentView