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Nick Gerleman 7b44c8d1d0 Automatically disable flattening of scroll content view children when needed

Summary:
There are a couple scenarios where flattening the child of a ScrollView can cause problems.

1. `maintainVisibleContentPosition` on both Android and iOS rely on reading live positions in the view tree
2. `snapToAlignment` on Android uses live view tree, for items to snap to. iOS seems to have very different behavior, and aligns assuming that children are scroll view height, or that a snap interval has been set.

This change adds a prop `collapsableChildren` which can be used to disable children of scroll content view from being collapsed.

Differentiator is... complicated... but we can mostly just adapt the code dealing with existing traits at the surface level.

Changelog:
[General][Fixed] - Automatically disable flattening of scroll content view children when needed
[General][Added] - Add `collapsableChildren` prop

Reviewed By: javache

Differential Revision: D56226241

fbshipit-source-id: ed81f7fff5a15eac424708f763afc9b844aefa9c

2024-04-25 14:52:22 -07:00

__flowtests__

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__tests__

Automatically disable flattening of scroll content view children when needed

2024-04-25 14:52:22 -07:00

FillRateHelper.js

Flow strictify xplat/js/react-native-github where possible (#41051 )

2023-10-18 05:36:33 -07:00

FlatList.d.ts

VirtualizedList/FlatList: Stricter typing for onViewableItemsChanged (#42773 )

2024-02-01 15:25:10 -08:00