UICollectionViewCell Height Bug

This demo project demonstrates the UICollectionViewCell's bug when the height of the 1st cell in 1st section is 0.0. The bug occurs with the following setup:

• the UICollectionsView has 2 sections
• The 1st section has one row
• The 1st row has a height of 0.0

Actual result

• The cells (in bounds) are NOT visible, but the collectionView can be scrolled, looks like that the cells are hidden

Expected Result

• All cells with a height > 0 should be visible.

Example

• Download demo project
• Toggle the schemes ShowBug, UseWorkaround

Possible Workaround

Give the 1st section's row a minimum height of 0.1f

• I filed a bug report: rdar://18120029