ios - scale animation in UITableViewCell interferes with scrolling -


i've created sample repo demonstrating issue:

https://github.com/dementrock/scrollanimationtest/commit/8ec61e24cdfa298e8eaee8c303f847c07809e35b

when building against initial commit, can see often, when scroll down , try scroll right after, scrollview ignores scroll touch events until decelerates. removing scale animations on red blocks solve issue.

in second commit (https://github.com/dementrock/scrollanimationtest/commit/c870b3900dbe5f95b81e469e53ba9a0df8100fdc), fixed issue setting userinteractionenabled no on red blocks. however, don't know why fix issue, , don't know why scaling animations interfere scrolling. can give me hint?

[update 1] issue exists both in simulator (ios sdk 8.2) , on real device (iphone 5s, ios 8.2)

a screenshot:

screenshot


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