UI API called on a background thread

[ebeland]

I'm not sure if this error is unique to our apps use of collectionKit with multiple threads and Scenekit or an issue in the project, I don't have time to fully research it at the moment.

If someone with a more vanilla implementation is getting this error it is an issue.

"Main Thread Checker: UI API called on a background thread: -[UIScrollView setNeedsLayout]"

It occurs on line 83 of collectionView.Swift

public func setNeedsReload() {
needsReload = true
setNeedsLayout()
}

Easily fixed by going back to the main thread.

public func setNeedsReload() {
needsReload = true
DispatchQueue.main.async {
self.setNeedsLayout()
}
}

[casperzandbergenyaacomm]

I think the problem is that you called setNeedsReload() from a background thread.