Summary:
I've noticed that `BackHandler.removeEventListener()` performs two same `indexOf()` calls on an array that is not changing. By removing extra `indexOf` we can slightly improve time complexity of `BackHandler.removeEventListener()` from O(2n) to O(n)
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
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[Android] [Fixed] - Remove extra indexOf call in BackHandler.removeEventListener
Pull Request resolved: https://github.com/facebook/react-native/pull/34281
Test Plan:
1. Add the following code to any function component
```javascript
BackHandler.addEventListener('hardwareBackPress', () => true).remove();
```
2. Press on hardware back button
Expected result: Application closes
Reviewed By: dmitryrykun
Differential Revision: D38198510
Pulled By: javache
fbshipit-source-id: eab6a57689a536623138a4b3ebddbf9ba87d281f
Summary:
At the moment we are having a bug that whenever we hit a "Done" button in an input field, a value is not submitted back, so the users cannot complete their work. Here is an example:
https://pxl.cl/28xFq
To fix it, we call a textInputShouldSubmitOnReturn method on Accessory button click.
Changelog
[IOS][Fixed] - Fix keyboard accessory button not triggering onSubmitEditing
Reviewed By: dmitryrykun
Differential Revision: D38152974
fbshipit-source-id: fc026dffd641966cd3d342d95a56c43c71008036
Summary:
# This Change
https://github.com/react-native-community/discussions-and-proposals/pull/335 discussed a set of problems with VirtualizedList and focus. These were seen as severe externally for a11y on desktop. The issues center on users of keyboard and accessibility tools, where users expect to be able to move focus in an uninterrupted loop.
The design and implementation evolved to be a bit more general, and without any API-surface behavior changes. It was implemented and rolled out externally as a series of changes. The remaining changes that were not upstreamed into RN are rolled into https://github.com/facebook/react-native/pull/32646
This diff brings this change into the repo, as a separate copy of VirtualizedList, to measure its impact to guardrail metrics, without yet making it the default implementation. The intention is for this to be temporary, until there is confidence the implementation is correct.
## List Implementation (more on GitHub)
This change makes it possible to synchronously move native focus to arbitrary items in a VirtualizedList. This is implemented by switching component state to a sparse bitset. This was previously implemented and upstreamed as `CellRenderMask`.
A usage of this is added, to keep the last focused item rendered. This allows the focus loop to remain unbroken, when scrolling away, or tab loops which leave/re-enter the list.
VirtualizedList tracks the last focused cell through the capture phase of `onFocus`. It will keep the cell, and a viewport above and below the last focused cell rendered, to allow movement to it without blanking (without using too much memory).
## Experimentation Implementation
A mechanism is added to gate the change via VirtualizedListInjection, mirroring the approach taken for Switch with D27381306 (https://github.com/facebook/react-native/commit/683b825b327e7fa71e87e3d613cb9acd37c24288).
It allows VirtualizedList to delegate to a global override. It has a slight penalty to needing to import both modules, but means code which imports VirtualizedList directly is affected the changes.
Changelog:
[Internal][Added] - Add VirtualizedList_EXPERIMENTAL (CellRenderMask Usage)
Reviewed By: lunaleaps
Differential Revision: D38020408
fbshipit-source-id: ad0aaa6791f3f4455e3068502a2841f3ffb40b41
Summary:
This change is in preparation of adding a separate `VirtualizedList_EXPERIMENTAL` component.
Both the original, and experimental lists use `VirtualizedListContext`, which itself references back to the VirtualizedList class type. VirtualizedList private methods are currently included in the type system, and are called in other VirtualizedList code (see https://github.com/facebook/react-native/commit/b2f871a6fa9c92dd0712055384b9eca6d828e37d). This prevents Flow from seeing the two classes are compatible if "private" methods change.
My first attempt was to parameterize the context, to allow both `VirtualizedList`, and `VirtualizedList_EXPERIMENTAL` to use the same code without sacrificing type safety or adding further duplication. This added more complexity than it is worth, so I am instead loosening the type on VirtualizedListContext to pass around a more generic handle.
Changelog:
[Internal][Changed] - Allow VirtualizedListContext to support different component type
Reviewed By: javache
Differential Revision: D38017086
fbshipit-source-id: 91e8f6ab2591d3ae9b7f9263711b4a39b78f68e0
Summary:
The `NSMutableAttributedString` was initialized with the same backing store as the cached attributed string on the shadow queue (background thread), but then passed to the main thread and ultimately the JS thread.
This explicitly copies the mutable attributed string into an immutable one on the shadow thread before passed off to other threads, which hopefully will address the `convertIdToFollyDynamic` crash that always includes `RCTBaseTextInputShadowView` touching an attributed string on the shadow queue in the trace.
Changelog:
[iOS][Fixed] - Possible fix for convertIdToFollyDynamic crash in RCTBaseTextInputView and RCTEventDispatcher
Reviewed By: sammy-SC
Differential Revision: D38133150
fbshipit-source-id: f371da5d17a32c3341287cd3e9730b31a98495f9
Summary:
Add capture-phase focus events to the type system, for use in the refactored VirtualizedList https://github.com/facebook/react-native/pull/32646/files
Tracking the last focused child is done via focus events. Focus events are bubbling (vs direct events like onLayout), and are given both a "capture" phase, and "bubbling phase", like DOM events on the web. https://stackoverflow.com/questions/4616694/what-is-event-bubbling-and-capturing
The VirtualizedList change wants to know if a child will receive focus. This is not possible to reliably capture in the bubbling phase, since a child may stop propagation.
See https://github.com/react-native-community/discussions-and-proposals/pull/335#discussion_r584851337 for some discussion with Scott Kyle about this issue back in the day
This is done by convention in React by adding a "capture" variant of the `onXXX` method. For all platforms I've seen with focus events, these map the `topFocus` native event to `onFocus` for bubbling phase, and `onFocusCapture` for capture phase. See https://reactjs.org/docs/events.html#supported-events
Changelog:
[General][Added] - Add types for onFocusCapture/onBlurCapture
Reviewed By: javache
Differential Revision: D38013861
fbshipit-source-id: 7bda22e1a4d5e36ac5e34e804abf6fb318a41baf
Summary:
We are already returning the `remove` function, and the `removeEventListener` method has been removed in this PR: https://github.com/facebook/react-native/issues/33580. So I believe this comment is now outdated and no longer relevant.
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
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-->
[Internal] [Removed] - Remove outdated TODO in AppState
Pull Request resolved: https://github.com/facebook/react-native/pull/34264
Reviewed By: dmitryrykun
Differential Revision: D38120344
Pulled By: GijsWeterings
fbshipit-source-id: c6c4d42f5b631a67bb6ad49c14df1a772f1cc71b
Summary:
A crash encountered in react-native-macOS is very similar to one fixed by https://github.com/microsoft/react-native-macos/pull/489#discussion_r451789471 (see discussion), and it's possible this `replacement` string also suffers from sharing the same backing store as the attributed string (maybe only when the range encompasses the entire string?) and therefore should be copied as well.
Changelog:
[iOS][Fixed] - Possible fix for convertIdToFollyDynamic crash in RCTBaseTextInputView and RCTEventDispatcher
Reviewed By: sammy-SC
Differential Revision: D38064551
fbshipit-source-id: 9c15f2a980155ab3cbb3fde79fcb93b24ee2091a
Summary:
This method assumes a semicolon existed before the closing bracket (`>`), but only does on iOS. This instead puts the content before the closing bracket, which is always there on both platforms.
Changelog:
[macOS][Fixed] - Fix exception thrown by [RCTTextView description] on macOS
Reviewed By: sammy-SC
Differential Revision: D38074642
fbshipit-source-id: f46d15c2bf2d966d1c1430568f083e4d501d4b40
Summary:
Currently, with the Alert API on iOS, the only way to bold one of the buttons is by setting the style to "cancel". This has the side-effect of moving it to the left. The underlying UIKit API has a way of setting a "preferred" button, which does not have this negative side-effect, so this PR wires this up.
See preferredAction on UIAlertController https://developer.apple.com/documentation/uikit/uialertcontroller/
Docs PR: https://github.com/facebook/react-native-website/pull/2839
## Changelog
[iOS] [Added] - Support setting an Alert button as "preferred", to emphasize it without needing to set it as a "cancel" button.
Pull Request resolved: https://github.com/facebook/react-native/pull/32538
Test Plan:
I ran the RNTesterPods app and added an example. It has a button styled with "preferred" and another with "cancel", to demonstrate that the "preferred" button takes emphasis over the "cancel" button.

Luna:
* Also tested this on Catalyst
{F754959632}
Reviewed By: sammy-SC
Differential Revision: D34357811
Pulled By: lunaleaps
fbshipit-source-id: 3d860702c49cb219f950904ae0b9fabef03b5588
Summary:
Log whether bridgeless mode is enabled or not when calling into a JavaScript module method fails.
We are seeing a surge of these crashes in MessageQueue.js bridgeless mode. This temporary log will help us drill down into the issue.
Changelog: [Internal]
Created from CodeHub with https://fburl.com/edit-in-codehub
This should not mess with the sitevar overrides.
These are the two diffs where we mapped the venice and bridge errors to the same mid: D36649249, D36649249.
Reviewed By: fkgozali
Differential Revision: D37898744
fbshipit-source-id: 0ab337c8c0d73bd70c4756a16b8ece8ba8730c47
Summary:
Now that [exact_empty_objects has been enabled](https://fb.workplace.com/groups/flowlang/posts/1092665251339137), we can codemod `{...null}` to `{}` - they are now equivalent.
1) Run my one-off jscodeshift codemod
2) `scripts/flow/tool update-suppressions .` (as some suppressions move around due to the change)
drop-conflicts
Reviewed By: bradzacher
Differential Revision: D37834078
fbshipit-source-id: 6bf4913910e5597e5dd9d5161cd35deece6a7581
Summary:
A layout-impacting style change will trigger a layout effect hook within `TextInput`. This hook fires a ViewManager command to set the text input based on the known JS value: https://github.com/facebook/react-native/blob/d82cd3cbce1597512bb2868fde49b5b3850892a0/Libraries/Components/TextInput/TextInput.js#L1009
The JS value is determined using `value` if set, falling back to `defaultValue`. If a component uses `TextInput` as an uncontrolled component, and does not set this value, the command wipes text input back to the default value. This does not happen on re-render of the JS side, despite setting text prop, since the underlying native property never changes/triggers a rerender.
This change alters the logic to prefer `lastNativeText` instead of `defaultValue` when available, to retain the updated `TextInput` content on relayout.
Reviewed By: javache
Differential Revision: D37801394
fbshipit-source-id: d56c719d56bebac64553c731ce9fca8efc7feae9
Summary:
Ahead of enabling the `exact_empty_objects` option, suppress errors so that actually enabling the option is easier. We can do this without enabling the option by codemoding `{}` to `{...null}` in files that have errors.
Process:
1) Get list of files with errors when enabling the option
2) Codemod `{}` to `{...null}` in those files
3) Suppress resulting errors
4) Land diff with `drop-conflicts` flag
5) Announce and enable option (with many fewer files to edit)
6) Codemod all `{...null}` to `{}`
drop-conflicts
We are working on making the empty object literal `{}` have the type `{}` - i.e. exact empty object - rather than being unsealed.
More info in these posts: https://fb.workplace.com/groups/flowlang/posts/903386663600331, https://fb.workplace.com/groups/floweng/posts/8626146484100557
Reviewed By: pieterv
Differential Revision: D37731004
fbshipit-source-id: a9305859ba4e8adbdb8ae8feff3ec8a2f07ed236
Summary: Changelog: [Internal] - We can now remove the '2' suffix as we had an internal implementation that was not truly aligned with W3C pointers but used the same name. We have aligned the internal types to match w3c so we can now remove the suffix that differentiates them.
Reviewed By: vincentriemer
Differential Revision: D37545813
fbshipit-source-id: 6f2336ae9e314066c340161113268c1f28621a71
Summary:
```js
async () => {
let blobs = [];
for (let i = 0; i < 4; i++) {
const res = await fetch();
blobs = [...blobs, await res.blob()]
}
const blob = new Blob(blobs); // <<<<<<<<<<<<<<< a
return await new Promise((resolve, reject) => {
const fileReader = new FileReader();
fileReader.onload = async () => {
await RNFS.writeFile(destPath, (fileReader.result as string).split(',')[1], 'base64');
resolve(destPath);
};
fileReader.onabort = () => {
reject('');
};
fileReader.onerror = (event) => {
reject('');
};
fileReader.readAsDataURL(blob); // <<<<<<<<<<<<<<< b
});
}
```
Sometime `fileReader.readAsDataURL` is unable to get blob from the dictionary after `new Blob(blobs)` and then reject with `Unable to resolve data for blob: blobId` in iOS or `The specified blob is invalid` in android. Because line `a` and `b` can be run in different thread. `new Blob([])` is in progress and `fileReader.readAsDataURL` accesses the blob dictionary ahead of the blob creation.
The expected behaviour is it should finish new Blob([]) first and then readAsDataURL(blob)
To fix that, there should be a lock inside the method `createFromParts`. For iOS, It needs to be a recursive_mutex to allow same thread to acquire lock
## 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
-->
[iOS] [Fixed] - fix the race condition when calling readAsDataURL after new Blob(blobs)
Pull Request resolved: https://github.com/facebook/react-native/pull/34096
Reviewed By: cipolleschi
Differential Revision: D37514981
Pulled By: javache
fbshipit-source-id: 4bf84ece99871276ecaa5aa1849b9145ff44dbf4
Summary:
`InputAccessoryView` works fine on iOS, but crashes on Android - you can see that by using an Android device on the [Expo Snack from the official doc](https://reactnative.dev/docs/inputaccessoryview).
It forces the developer not to render the component on Android, which is usually good, but other components have implemented other, safer ways to deal with incompatibility issues.
I am of course open to discussion about this change, as well as other implementation ideas.
## Changelog
[Android] [Fixed] - Fix InputAccessoryView crash on Android
Pull Request resolved: https://github.com/facebook/react-native/pull/33803
Test Plan:
`yarn test` gives out the following output:

Reviewed By: cipolleschi
Differential Revision: D37215394
Pulled By: cortinico
fbshipit-source-id: 66c4401f7c61b745ea893969d69c8dde3e5afb03
Summary:
Removes the `isTVOS` check, which just duplicated and returned the `isTV` check anyway.
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
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-->
[General] [Removed] - Remove deprecated `isTVOS` constant.
Pull Request resolved: https://github.com/facebook/react-native/pull/34071
Test Plan: Run against CI, and apply changes as needed.
Reviewed By: cipolleschi
Differential Revision: D37434978
Pulled By: cortinico
fbshipit-source-id: 2b38253125251b0ce28cf10c88471d8f16704999
Summary: Add annotations to function parameters required for Flow's Local Type Inference project. This codemod prepares the codebase to match Flow's new typechecking algorithm. The new algorithm will make Flow more reliable and predictable.
Reviewed By: bradzacher
Differential Revision: D37388949
fbshipit-source-id: cdcbc98035ce9b6994842005ea46df42de54f9b8
Summary: Add annotations to function parameters required for Flow's Local Type Inference project. This codemod prepares the codebase to match Flow's new typechecking algorithm. The new algorithm will make Flow more reliable and predicatable.
Reviewed By: bradzacher
Differential Revision: D37363351
fbshipit-source-id: a9d3df7db6f9d094ac2ce81aae1f3ab4f62b243a
Summary: Add annotations to function parameters required for Flow's Local Type Inference project. This codemod prepares the codebase to match Flow's new typechecking algorithm. The new algorithm will make Flow more reliable and predicatable.
Reviewed By: evanyeung
Differential Revision: D37353648
fbshipit-source-id: e5a0c685ced85a8ff353d578b373f836b376bb28
Summary: Add annotations to function parameters required for Flow's Local Type Inference project. This codemod prepares the codebase to match Flow's new typechecking algorithm. The new algorithm will make Flow more reliable and predicatable.
Reviewed By: evanyeung
Differential Revision: D37360113
fbshipit-source-id: 870bcfe680542b3861fefbaf372db0ae8b32cbf3
Summary:
Bumping RTC-Folly version used to address CVE-2022-24440.
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
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-->
[General][Security] - Bump RTC-Folly to 2021-07-22
Pull Request resolved: https://github.com/facebook/react-native/pull/33841
Reviewed By: Andjeliko, philIip
Differential Revision: D36425598
Pulled By: cortinico
fbshipit-source-id: d38c5f020dbecf794b10f12ed2da30e1825071af
Summary:
Rewrites `EventEmitter` as a simple, type-safe abstraction with a minimal interface.
The public interface of `EventEmitter` is unchanged. This rewrite was made possible only after deprecating and removing public methods that imposed restrictions on implementation details (e.g. deleting `removeListener`).
However, this includes a subtle breaking change that makes it behave the same as `EventEmitter` in Node.js and `EventTarget` in the DOM. The set of listeners being notified by `emit` will no longer be influenced by changes made during the course of notifying the existing listeners.
Changelog:
[General][Changed] - `EventEmitter#emit` now freezes the set of listeners before iterating over them, meaning listeners that are added or removed will not affect that iteration.
Reviewed By: javache
Differential Revision: D22153962
fbshipit-source-id: 81b87113590dee0296eff61374bf732171855453
Summary:
Currently `ListHeaderComponent` & `ListFooterComponent` allow to use React Componetn & Elemelen
```tsx
<FlatList
ListHeaderComponent={<View />} // valid
ListHeaderComponent={View} // valid
/>
```
But when you try to pass `ItemSeparatorComponent` as React Element it will throw an error
```tsx
<FlatList
ItemSeparatorComponent={View} // ok
ItemSeparatorComponent={<View />} /* not valid:
Error: Element type is invalid: expected a string (for built-in components) or a class/function
(for composite components) but got: object.
Check the render method of `CellRenderer`.
*/
/>
```
So, this PR adds this ability
## 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
-->
[General] [Changed] - Add ability to pass `ItemSeparatorComponent` as React Element
Pull Request resolved: https://github.com/facebook/react-native/pull/32748
Test Plan: ...
Reviewed By: lyahdav
Differential Revision: D37227719
Pulled By: cortinico
fbshipit-source-id: 1c4943fa9d42bf5e61fbd999d1f5be46b51ecb14
Summary:
LogBox was using AppRegistry to render on to the screen. Switch LogBox over to using SurfaceRegistry instead.
Changelog: [Internal]
Reviewed By: sshic
Differential Revision: D37223641
fbshipit-source-id: 59001ad290c1e2c2f14828d38a96f48bd1ab39ca
Summary:
Original commit changeset: 4c0afc95abe8
Original Phabricator Diff: D37155957 (https://github.com/facebook/react-native/commit/d1321d88bdc80b209aeb781991d8143d6ce2f9a9)
See attached UBN task for more details, I am reverting the whole diff now while investigating the root cause.
Changelog:
[General][Changed] - Revert "React Native sync for revisions d300ceb...256aefb"
jest_e2e[run_all_tests]
=== update
klein did a bisect for S276290, it seems Original Phabricator Diff: D37155957 (https://github.com/facebook/react-native/commit/d1321d88bdc80b209aeb781991d8143d6ce2f9a9) is the blame diff.
jackworden also has verified backout can fix it for both ios and android.
Reviewed By: ahujap-fb, kacieb
Differential Revision: D37205394
fbshipit-source-id: 600e6593532da064631c016aace317932f290c67
Summary: Some files relying on -include_pch and therefore they miss Foundation.h and UIKit.h includes. This diff is fixing missing imports
Reviewed By: rmaz
Differential Revision: D37140239
fbshipit-source-id: bc57921e0c8365e0e9a5a571d607ba40ff1b31f3
Summary:
Please see this issue https://github.com/facebook/react-native/issues/33034 for details on the problem solved by this PR.
## 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
-->
[CATEGORY] [TYPE] - Message
[ios] [changed] - HTTP Response headers added to the error object passed to JS code.
Pull Request resolved: https://github.com/facebook/react-native/pull/33880
Test Plan:
Tested:
(All tests done on images in rn-tester app, which is a part of this repo)
1. onError method in case image has an HTTP Error
2. onError method in case of non http error (DNS error)
3. Successful image load
Reviewed By: cortinico
Differential Revision: D37066159
Pulled By: cipolleschi
fbshipit-source-id: 546f7678fa0321fe6c6fbef55288715cb6ddc2fd
Summary:
[A recent fix](https://github.com/facebook/react-native/pull/33076) to Android to set focusable to true when accessible is true, and this caused several components not to work correctly.
This JS change essentially reverts the default back to Text not being focusable unless it is explicitly set. Android's "auto" behavior is better than setting `accessible=true`, and it's also the behavior React Native has had since accessibility on Android was implemented.
# Wall of Text Explanation
Explanation From Brett's comment [here](https://www.internalfb.com/diff/D35908559?dst_version_fbid=700876567897063&transaction_fbid=477905564133412)
blavalla
Generally speaking, "accessible" in react native maps to "focusable" in Android views, and the default value for "focusabe" for a TextView (and actually all views) is "auto" not "false". The difference here is that "false" is telling the system to explicitly disallow focus on this element, where as "auto" is telling the system that it's up to whatever service is trying to focus to determine if it should or not.
In the case of text, Talkback generally does default to focusing on Text when it's set to "auto", though it also does try to combine this text together with other not-explicitly focusable siblings and roll the focus up to some common ancestor element.
In the case of TetraButton here, I would expect the default behavior would be that the text is "auto" focusable, so Talkback would combine the text here with the parent <TetraPressable> (which is explicitly focusable via accessible="true").
...
[This diff](https://github.com/facebook/react-native/pull/33076) was to fix the issue with "disabled" not properly announcing on text views, which was commonly occuring due to the description-combining feature described above. Basically, when Talkback decides to combine not-explicitly-focusable elements together, it ignores properties like "disabled", "selected", etc. so when combined only the text is transferred.
The "fix" here was to make sure that if disabled was set, that an element was always explicitly focusable so that it wouldn't be eligible to be combined with others. I think that as a general concept makes sense, but the fix actually surfaced an issue that is likely a much older bug.
This line in <Text>
```
accessible={accessible !== false}
```
Is basically always setting accessible="true" unless it's explicitly set to false, and has been in there for years. It was likely added to force text to be accessible by default for iOS. But until [this diff](https://github.com/facebook/react-native/pull/33076) this line was basically a no-op for Android, since setting accessible="true" on text would do nothing at all.
[This diff](https://github.com/facebook/react-native/pull/33076) changed this so that setting accessible="true" worked how you'd expect, by making the view explicitly focusable, which was necessary for the disabled behavior to work properly. But that means that now by default all text views are explicitly focusable on both iOS and Android, and this there is likely many components that were built that don't expect this to be the case.
It doesn't seem like the right fix here is to revert this behavior to its previous state, as it wasn't working how anyone would expect it to if they looked at the code, and it seems like we were relying on some fairly undocumented behavior of Talkback to get it to work how we wanted. If we truly only wanted accessible="true" to be set on all TextViews for iOS, we should be explicit about it and do a platform check before setting that property. If we didn't want this to be iOS-specific, then everything is now actually working as originally intended.
For reference, this is the diff that introduced the default-accessible text - https://www.internalfb.com/diff/D1561326, and the description makes it clear that this was only tested on iOS, and the behavior was explicitly trying to map to iOS norms such as not allowing nested accessible elements.
Changelog:
[Android][Fixed] Make Text not focusable by default
Reviewed By: ryancat
Differential Revision: D36991394
fbshipit-source-id: c45d2ada72bb2d6ffeee6947d676a07fb8899449
Summary:
D36902220 (https://github.com/facebook/react-native/commit/a04195167bbd8f27c6141c0239a61a345cac5a88) changed Animated to only use value of natively driven nodes on initial render.
However, there remained a case where we could end up with a race condition between Fabric prop update (via SurfaceMountingManager.updateProps) and Animated (via NativeAnimatedNodesManager.runUpdates), when an animation on a node that was created natively is triggered close to render (such as in componentDidUpdate). This happens as Animated and Fabric aren't synchronized, and at the platform level, they do not know each other's state.
Say we have two items, where opacity is used to indicate whether the item is selected. On initial render, A's opacity is set to 1, and animated sets opacity to 1; B's opacity is set to 0, and animated sets opacity to 0. When B is selected (and causes A and B to rerender), A's opacity is now set to null, and animated sets opacity to 0; B's opacity is also now set to null, and animated sets opacity to 1. A's props have changed, and thus the default opacity value of 1 is applied via Fabric, but Animated also sets the opacity to 0 - either may end up being the value visible to the user due to the nondeterministic order of Fabric update props and Animated. This is what is causing T122469354.
This diff addresses this edge case by using the initial prop values for native animated nodes, for subsequent renders, to ensure that values of native animated nodes do not impact rerenders.
This diff also fixes a bug in OCAnimation where translateX/Y values of 0 in transition will result in render props containing translateX/Y instead of transform, resulting in potentially incorrect pressability bounds.
Changelog:
[Internal][Fixed] - Only use initial value of natively driven nodes on render
Reviewed By: JoshuaGross, javache
Differential Revision: D36958882
fbshipit-source-id: 10be2ad91b645fa4b8a4a12808e9299da33aaf7d
Summary:
Changelog:
[Android][Fix] - When `onEndReachedThreshold` is set to 0 `onEndReached` function on `VirtualizedList` properly fires once the user scrolls to the bottom of the list.
Reviewed By: genkikondo
Differential Revision: D36488189
fbshipit-source-id: b95f3291f2957273280696d8840c1e000d669380