onScroll for List is not called when scrolling is horizontal

[offsky]

If you are using a List with rows that are wider than the container and then you scroll horizontally to see the end of the row, the List.onScroll callback is not called with the horizontal parameters. Actually, it's called once when scrollLeft deviates from zero, but then it isn't called again, and it doesn't pass in the horizontal values.

[bvaughn]

If you are using a List with rows that are wider than the container

This isn't really a supported use-case. List rows are intended to be the width of the List.

[offsky]

Ok, but you should know that it works fine if the rows are wider than the list, with the above caveat. I'll see about switching to a Grid with a single column. That might be what I need.

[bvaughn]

Fair enough! 😯 List specifically sets its row widths to 100% though so the expectation is that it won't horizontally scroll.

[offsky]

I forgot that I ignore the 100% width in my case. Sorry. I understand now. Will switch to a Grid with a single column.