Using iOS 26's new sectionIndexLabel/listSectionIndexVisibility for a list of child features

[ryanbooker]

I'm sure I'm just holding it wrong, but I'm trying to set up a ListFeature with child RowFeatures, where the rows have been chunked into alphabetised sections and are being displayed with the new sectionIndexLabel/listSectionIndexVisibility stuff in iOS 26.

I have the feature working with just a straight list, but I'm struggling with the section indexed list. So far I've only had success using the deprecated store scoping that uses closures rather than key paths.

Has anyone done this? Am I going to need a redundant SectionFeature in the middle perhaps?

At the moment the reducer state is a raw list of row features.

Any help much appreciated. If none of that made sense, I'll post some cut down code later.

[ryanbooker]

I just had luck with subscript that is basically the identity function passing back the rows I pass in. But that seems… dodgy.🤣