Summary:
iOS 13 added a new property to `UIScrollView`: `automaticallyAdjustsScrollIndicatorInsets`, which is `YES` by default. The property changes the meaning of the `scrollIndicatorInsets` property. When `YES`, any such insets are **in addition to** whatever insets would be applied by the device's safe area. When `NO`, the iOS <13 behavior is restored, which is for such insets to not account for safe area.
In other words, this effects ScrollViews that underlay the device's safe area (i.e. under the notch). When `YES`, the OS "automatically" insets the scroll indicators, when `NO` it does not.
There are two problems with the default `YES` setting:
1. It means applying `scrollIndicatorInsets` to a `ScrollView` has a different effect on iOS 13 versus iOS 12.
2. It limits developers' control over `scrollIndicatorInsets`. Since negative insets are not supported, if the insets the OS chooses are too large for your app, you cannot fix it.
Further explanation & sample code is available in issue https://github.com/facebook/react-native/issues/28140 .
This change sets the default for this property to `NO`, making the behavior consistent across iOS versions, and allowing developers full control.
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
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[iOS] [Changed] - ScrollView scrollIndicatorInsets to not automatically add safe area on iOS13+
Pull Request resolved: https://github.com/facebook/react-native/pull/29809
Test Plan:
Updated the RNTester example to explain what to expect. Also removed the `pageScreen` modal example for now as mentioned in my Github comment.
{F628636466}
Here are screenshots of the demo app (from the original bug) before (with safe area applied to insets) & after (without safe area applied to insets):
Reviewed By: p-sun
Differential Revision: D28229603
Pulled By: lunaleaps
fbshipit-source-id: 2e774ae150b1dc41680b8b7886c7ceac8808136a
Summary:
Updates `ReactScrollViewManager` and the `ViewConfig` for `ScrollView` so that they are equivalent.
- `inverted` was missing.
- `contentOffset` was missing differ on Android. (However, there does not seem to be any perceivable behavior difference besides the native `ViewConfig` being different.)
Changelog:
[Internal]
Reviewed By: JoshuaGross
Differential Revision: D25084470
fbshipit-source-id: 8bea3b7a692c1038819a4147b174583a4faa71e9
Summary:
Cleans up the Flow types for React Native ViewConfig. After this diff, we will have two new canonical types:
- `ViewConfig` which is what we get from native and what is registered in the `ReactNativeViewConfigRegistry`.
- `PartialViewConfig` which is what we generate statically and augment at runtime before registering with the `ReactNativeViewConfigRegistry`.
Changelog:
[Internal]
Reviewed By: JoshuaGross
Differential Revision: D25075299
fbshipit-source-id: 4b53927b2db437b615447b711e83db355d0cfa55
Summary:
Changelog:
[iOS][Removed] - Removed DEPRECATED_sendUpdatedChildFrames prop to ScrollView component because there are no callsites of it anymore
Reviewed By: shergin
Differential Revision: D21941946
fbshipit-source-id: 0b7d6d0986ddff4b250e70e0450a6f7e166b41f4
Summary:
Adding a handwritten view config for RCTScrollView, to be used in DEV only (for now).
Changelog: [Internal]
Reviewed By: rickhanlonii
Differential Revision: D18263203
fbshipit-source-id: 975499f030c7caed9851bcde0be42c5058911ad5
Justin Huntington
Tim Yung
Jiayan Zhuang
Eli White
Emily Janzer
Emily Janzer
