[Docs] Additional note for Android borderRadius clipping #3198

[rreusser]

From known issues: "The overflow style property defaults to hidden and cannot be changed on Android"

This is not the full story. I was surprised to discover that although overflow: hidden is always true on Android, it never obeys borderRadius clipping. See: #3198. I think this is worth an extra sentence since there are design/implementation choices that can significantly simplify compensating for this, but only if known ahead of time.

[facebook-github-bot]

By analyzing the blame information on this pull request, we identified @brentvatne, @mkonicek and @mbrock to be potential reviewers.

[brentvatne]

Modified it for clarity:

Another issue with overflow: 'hidden' on Android: a view is not clipped by the parent's borderRadius even if the parent has overflow: 'hidden' enabled -- the corners of the inner view will be visible outside of the rounded corners. This is only on Android -- it works as expected on iOS. See a demo of the bug and the corresponding issue.

Does this work for you? If so can you update PR?

[rreusser]

Yup. Thanks! That's more clear. I've applied the changes. You can preview the markdown here

[facebook-github-bot]

@rreusser updated the pull request.

[mkonicek]

I'll let @brentvatne review this one.

[brentvatne]

lgtm!