Summary:
Use `getChildDrawingOrder` instead of reordering views. The old implementation didn't work properly when `removeClippedSubviews` was enabled and this one should have better performance since we don't play with the view hierarchy at all.
This fixes weird bugs with sticky headers in `SectionList` and allows removing the hack that disabled `removeClippedSubviews` when using sticky section headers.
**Test plan**
Tested using the SectionList and ListViewPaging examples that use sticky headers which uses z-index.
Closes https://github.com/facebook/react-native/pull/13105
Reviewed By: sahrens
Differential Revision: D4765869
Pulled By: achen1
fbshipit-source-id: be3c824658a3ce965b6e7324ad95c77cbd8a86ae
Summary:
I don't remember exactly where we talked about this but LayoutAnimation on Android is pretty stable now so there's no reason to keep it behind an experimental flag anymore. The only part that is not really stable is delete animations, so what I did is remove the default delete animation that we provide in presets.
**Test plan**
Tested that layout animations work properly without any config.
Closes https://github.com/facebook/react-native/pull/12141
Differential Revision: D4494386
Pulled By: mkonicek
fbshipit-source-id: 5dd025584e35f9bff25dc299cc9ca5c5bf5f17a3
Summary: Move all JS to a js/ subfolder so we get some overview of this folder again.
Reviewed By: bestander
Differential Revision: D3542598
fbshipit-source-id: 7637133fe4152f4d39e461b443b38510272d5bc8
