Section Header Reload on performUpdates()

[jpstern]

New issue checklist

• [✓] I have reviewed the README and documentation
• [ ✓] I have searched existing issues and this is not a duplicate
• [x] I have attempted to reproduce the issue and include an example project.

General information

• IGListKit version: 3.4.0
• iOS version(s): 10+
• CocoaPods/Carthage version: 1.7.0
• Xcode version: 10.3 (10G8)
• Devices/Simulators affected: All
• Reproducible in the demo project? (Yes/No):
• Related issues:

I have a vertically scrolling list with multiple sections. Each has a sticky header and contains a count of the number of rows in the section. Is it possible to have the section header/redraw along with the section when the diffing logic indicates changes?

I have tried playing with the UICollectionViewLayoutInvalidationContext, but it crashes the library internally because it is expecting an instance of IGListCollectionViewLayoutInvalidationContext. I like the look of this object because of ig_invalidateSupplementaryAttributes, but I don't see a way to actually use it.

Can someone shed some light on getting my section headers to refresh when the section itself changes?

[attheodo]

We have find it way easier to deal with section headers if implemented like normal ListSectionControllers. IGListKit allows more granular control for some of the operations you mentioned above.

[jpstern]

@attheodo Great idea, thanks!

[jpstern]

Hey @attheodo - was your team able to achieve sticky headers with the approach you mentioned?