Summary: This diff migrates VirtualizedList to use ref.measureLayout instead of UIManager.measureLayout, this is a pre-req to make measureLayout to work in Fabric
Reviewed By: JoshuaGross, TheSavior
Differential Revision: D14865762
fbshipit-source-id: 45dd3374813370188c914acfc7e631075508f74a
Summary:
Makes sure `onViewableItemsChanged` fires ASAP when `waitForInterations` is false.
This also works around another deeper bug where updates scheduled with `InteractionManager` aren't firing at all in some cases, and thus instead of just firing late, `onViewableItemsChanged` isn't firing until scroll which is not what we want with `waitForInterations: false`. That bug will require more digging.
Differential Revision: D14984333
fbshipit-source-id: 718b39670307c6bc16268759bdb513682745265d
Summary:
Flow typing can be annoying because the `renderItem` prop for FlatList always has to specifically be of type `React.Element`.
Since really we just want to return something renderable, it should be fine to type this as `React.Node` instead.
I'm not sure if this is valid, but it seems like since we just need to implant the `key` property, we should be able to accomplish this with a `React.Fragment` wrapper instead of needing to call `cloneElement`. Looking for feedback on if this is a sensible fix.
Changelog:
[General][Changed] Updated FlatList's renderItem Flow type from React.Element<any> to React.Node
Reviewed By: sahrens
Differential Revision: D14814805
fbshipit-source-id: ce6793dea5a92619babe048dcfddee0e4519979c
Summary:
This pull request fixes#24257.
The wrapper around ListEmptyComponent doesn't allow to use flex on the ListEmptyComponent.
The wrapper was removed in this [commit](db061ea8c7), and then put back in this [commit](e94d3444dc) but I think the relevant part was removing the condition on `itemCount !== 0` to apply the inversionStyle on the ScrollView and everything is still working without the wrapper.
[GENERAL] [FIXED] - Remove wrapper around ListEmptyComponent
Pull Request resolved: https://github.com/facebook/react-native/pull/24339
Differential Revision: D14822221
Pulled By: cpojer
fbshipit-source-id: 623e1ab3f228e9b75b92cdcd568683232a403c1a
Summary:
It seems (I used git history to confirm) that FlatList/VirtualizedList have ([since the begining](c13f5d48cf/Libraries/Lists/VirtualizedList.js (L79))) a `disableVirtualization` prop.
SectionList ([since it's begining](abe737fe74/Libraries/Lists/VirtualizedSectionList.js (L98))) have a `enableVirtualization` prop, but since SectionList is VirtualizedSectionList which use VirtualizedList, this prop probably never did something. This fix just rename the prop properly so it can have an effect on the underlying VirtualizedList when you use a SectionList.
Since props are spread it's kind of working already, but the flow annotation are wrong (so it tells you it won't work/ you can't use it) which sucks.
(NB: I am doing this since I was trying to use a SectionList with react-native-web & server side rendering to get the all list, you can laugh).
[General] [Fixed] - VirtualizedSectionList/SectionList: replace enableVirtualization prop annotation by correct underlying disableVirtualisation of VirtualizedList
Pull Request resolved: https://github.com/facebook/react-native/pull/24312
Differential Revision: D14779449
Pulled By: cpojer
fbshipit-source-id: e51e1d639d2bb265b5b286786010d01ffd9d90e0
Summary:
This PR fixes the case where the content a VirtualizedList loads with a contentLength of 0, causing a crash in the `renderDebugOverlay` function. The result of that crash is a red screen when turning on debug on FlatList and other VirtualizedList components as described in #24053.
[LIST] [FIX] - Fix VirtualizedList debug mode crash
Pull Request resolved: https://github.com/facebook/react-native/pull/24058
Differential Revision: D14538317
Pulled By: cpojer
fbshipit-source-id: 7b17bf51c388561c517bab1f775a31200abdc5a9
Summary:
```
let index = params.itemIndex + 1;
```
to
```
let index = Platform.OS === 'ios' ? params.itemIndex : params.itemIndex - 1;
```
to fix an issue on iOS. Note however, how the sign for non iOS changed from `+` to `-` causing a crash on Android when trying to scroll to index 0 as that will be evaluated to -1 instead of 1 and thus be out of bounds.
[Android] [Fixed] - Fixed regression in SectionList caused by #21577 not being able to scroll to top on android
Pull Request resolved: https://github.com/facebook/react-native/pull/24034
Differential Revision: D14520796
Pulled By: cpojer
fbshipit-source-id: bb49619f49752fd3f343ef3b7bf1b86ac48af7f8
Summary:
@public
This bumps Prettier to v1.16.4
Only format source files were updated.
Reviewed By: mjesun
Differential Revision: D14454893
fbshipit-source-id: 72f9872fe764a79dbf0d9fab9bebb1456b039f2f
Summary:
SectionList accesses items outside of the array bounds.
This was discovered when using mobx, which warns you: `[mobx.array] Attempt to read an array index (${index}) that is out of bounds`. This is because `section.data[itemIndex + 1]` goes beyond array length.
This PR adds an array length check and simplifies the code a bit to avoid repetitive `this.props.`
Pull Request resolved: https://github.com/facebook/react-native/pull/23710
Differential Revision: D14298557
Pulled By: cpojer
fbshipit-source-id: fee3422ad5b053d91a097c5842f46e78a149c3d5
Summary:
This diff removes ListView and SwipeableListView from React Native:
* Removes the code and all examples
* Removes the exports on `react-native-implementation` but leaves an error message in dev mode only
* Uses `deprecated-react-native-listview` for `ListView` and `deprecated-react-native-swipeable-listview` for `SwipeableListView`
Both ListView and SwipeableListView are now fully removed from React Native in open source and we will continue to use the deprecated packages internally.
Reviewed By: TheSavior
Differential Revision: D14181708
fbshipit-source-id: 5030c33791f998567de058fee934449c16fa1d54
Summary:
Reverting this change since it broke some initial scroll positions. It seems the proper API to use to limit overscrolling should be overScrollMode='never'
Original commit changeset: 2ec5787218ec
Reviewed By: olegbl
Differential Revision: D13845053
fbshipit-source-id: 673aa529ef5171f26ce138573ee36f31f5d9799e
Summary:
When a list is updated to have fewer items and the user immediately
scrolls, the `ViewabilityHelper` `computeViewableItems` can be invoked
from the scroll and cause a crash.
This side effect *should* be relatively minor; the ViewabilityHelper shouldn't
cause a crash, as it generally would be used for analytics to see what users are viewing. I suggest changing this to a warning instead of a crash. Other react-native developers seem to [also be getting this occasionally](https://github.com/facebook/react-native/issues/20289).
Changelog:
----------
[General] [Fixed] - `Invalid render range` crash changed to warning when viewability helper detects an anomaly in list data.
Pull Request resolved: https://github.com/facebook/react-native/pull/22847
Differential Revision: D13750031
Pulled By: cpojer
fbshipit-source-id: 053d2baad208d1efe5b18b07ab10226032e665b8
Summary: Android scrolling performance is very poor with this disabled. iOS has some KP with this enabled, so disable it for iOS.
Reviewed By: sahrens
Differential Revision: D13363494
fbshipit-source-id: efab77b5db9676dd0521ae4193465d45ac34dda3
Summary:
Add key prop to renderHeader and renderFooter in ListViewMock.
Fix unique key error when using jest snapshots.
It closes#12762
Pull Request resolved: https://github.com/facebook/react-native/pull/14894
Reviewed By: TheSavior
Differential Revision: D13396721
Pulled By: cpojer
fbshipit-source-id: 5bbcb8157e3cd98fe07f2a037e1dbc06ab599c87
Summary: This is one more step to remove `fbjs` from `react-native-github`. This changes both the internal and external code to use `invariant` from zertosh instead of the copy in fbjs.
Reviewed By: yungsters
Differential Revision: D13195941
fbshipit-source-id: 73564ca1715110e7da9c7ef56dc57374d61377e0
Summary:
Fixes lots of ESLint warnings. Many of them where in PR #20877 by janicduplessis which requested to split the linting fixes from configuration and package changes.
I solved only the issues that I was most certain about but I would love to get hands on all of them with a little bit of input.
Pull Request resolved: https://github.com/facebook/react-native/pull/22062
Differential Revision: D12889447
Pulled By: TheSavior
fbshipit-source-id: 35f7a08104a5b859c860afdde4af2b32c0685c50
Summary: This function sometimes causes an "Unable to find node on an unmounted component" crash during pagination for reasons that still need to be investigated; in the meanwhile, wrap this in a try-catch block to mitigate the crash.
Reviewed By: sahrens
Differential Revision: D12829971
fbshipit-source-id: bc9fe5b9b8c03430ff890bfbb27c39aa270c9eb7
Summary:
This functionality was removed here: 636d01bbd0
This is just a step of cleanup
Reviewed By: yungsters
Differential Revision: D10515512
fbshipit-source-id: 6d24cc9c53c71924a82c67a4058585ee978de2d9
Summary:
Related to https://github.com/facebook/react-native/pull/21488
Disclaimer: I made this PR.
I think there's some requestAnimationFrame events that are not cleared on unmount because of bad use of `splice` method.
- All flow tests succeed.
- RNTester: iOS (this change should only affect iOS because calculateChildFrames is iOS only)
Show perf monitor, show ListView* screen, start scrolling. UI frame Rate is used at the beginning. When scrolling there is no drop in FPS rate.
- TODO: I'll write a load test for ListView
[GENERAL] [ENHANCEMENT] [ListView.js] - rm TimerMixin
Pull Request resolved: https://github.com/facebook/react-native/pull/21802
Differential Revision: D10391812
Pulled By: RSNara
fbshipit-source-id: 49f0b0a4641ec29bcb4cc04bd3bafb42b3842b69
Summary:
`legacyImplementation` has caused a warning in FlatList for a long time. FlatList supports the use cases of the legacy implementation and should be adopted.
We will be removing the deprecated MetroListView and ListView components to reduce bundle sizes and the complexity of the codebase.
Reviewed By: yungsters
Differential Revision: D10245824
fbshipit-source-id: 60ff0d54974649b57bac9f9f29b769f34ca2701c
Summary:
Related to #21485
- Remove TimerMixin from ListView
- All flow tests succeed.
- RNTester: <ListView> iOS (this change should only affect iOS because calculateChildFrames is iOS only)
Show perf monitor, show ListView* screen, start scrolling. UI frame Rate is used at the beginning. When scrolling there is no drop in FPS rate.
TODO: I think a load test would be more relevant:
- Update props multiple times and scroll
[GENERAL] [ENHANCEMENT] [ListView.js] - rm TimerMixin
Pull Request resolved: https://github.com/facebook/react-native/pull/21488
Differential Revision: D10219088
Pulled By: RSNara
fbshipit-source-id: 946e4fc1319324c5bf4947a2060b18bebb6fc493
Summary: The legacy implementation doesn't provide additional functionality and has a negative impact on performance and user experience. The legacyImplementation prop is deprecated and will be removed in a future release.
Reviewed By: yungsters
Differential Revision: D10212762
fbshipit-source-id: 9b3416434ba392827b538c984c7ab4bcbe156e60
Summary: This change drops the year from the copyright headers and the LICENSE file.
Reviewed By: yungsters
Differential Revision: D9727774
fbshipit-source-id: df4fc1e4390733fe774b1a160dd41b4a3d83302a
Summary:
Currently, modifying a component that renders a FlatLists while Hot Reloading is enabled will trigger an invariant inside FlatList for changing viewabilityConfig on the fly. This happens because it checks object equality between the configs.
By checking equality of the config's *properties* instead, we maintain the efficacy of the invariant but keep it from falsely triggering during development.
Reviewed By: sahrens
Differential Revision: D9466129
fbshipit-source-id: 67149e9e70ad7b2e2584bb7ec03e2dea26ef45e8
Summary: Locking down view style so that invalid styles can't be passed into View.
Reviewed By: yungsters
Differential Revision: D9309097
fbshipit-source-id: 69e7e3c5626609cfd47c167027a55470c42228c8
Summary:
ag -L --ignore __snapshots__ 'flow strict|noflow|generated|The controller you requested could not be found.' | ag '\.js$' | xargs ag -l 'flow' | sort > ~/temp
cat ~/temp | xargs ag -L 'flow strict' | xargs sed -i '' 's/flow$/flow strict-local/'
until flow check; do flow check --json | jq -r '.errors[].message[0].path' | sort | uniq | xargs hg revert; done
allow_many_files
The controller you requested could not be found.
The controller you requested could not be found.
Reviewed By: TheSavior
Differential Revision: D9004573
fbshipit-source-id: 936bd5741706b781be06bf08b6ad805a69407dfd
Summary:
We ran into a problem trying to style the optional prop `ListHeaderComponent` in the `FlatList` library component. Essentially we wanted to make `ListHeaderComponent` a flex item that filled all of the empty space in the list if there was any. Unfortunately the `ListHeaderComponent` is later wrapped in a `View` that blocked our styling. The `View` component was necessary as it added styling to handle inverting the `FlatList`. Similarly `ListFooterComponent` was handled the same way.
We came up the simple solution of adding two new optional props, `ListHeaderComponentStyle` and `ListFooterComponentStyle`, that are of type `ViewStyleProp` that allow users to pass in styling for `ListHeaderComponent` and `ListFooterComponent`.
With this change we were able to do something like the following to get the header component to fill all empty space in the `FlatList`.
```
<FlatList
...
contentContainerStyle={{flexGrow: 1}}
ListHeaderComponent={<View style={{flex: 1}} />}
ListHeaderComponentStyle={{flexGrow: 1}}
...
/>
```
This solution will give users a lot more freedom when working with headers and footers.
Reviewed By: sahrens
Differential Revision: D8777038
fbshipit-source-id: f34116ce68548ea70223e639d0f84a099327f6b3
Summary:
We're unifying on flow types, and propTypes require non-trivial resources to initialize in aggregate.
Some open source code might depend on extracting ScrollView.propTypes which will now fail. To fix, simplly remove these dependencies and use flow or typescript for verifying correct prop usage instead.
Reviewed By: TheSavior
Differential Revision: D8726371
fbshipit-source-id: 19e9540794db97a9e356615b544759a0753fd68c
Summary:
… in VirtualizedList - fixes#16612
Issue is detailed in #16612
<!--
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-->
I need `onViewableItemsChanged` to account for the length of any ListHeaderComponents
I couldn't find any tests that currently cover the use-case of a VirtualizedList + ListComponent + scroll with onViewableItemsChanged, so I have not added any tests - all previous tests pass however.
<!--
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**INTERNAL and MINOR tagged notes will not be included in the next version's final release notes.**
CATEGORY
[----------] TYPE
[ CLI ] [-------------] LOCATION
[ DOCS ] [ BREAKING ] [-------------]
[ GENERAL ] [ BUGFIX ] [-{Component}-]
[ INTERNAL ] [ ENHANCEMENT ] [ {File} ]
[ IOS ] [ FEATURE ] [ {Directory} ] |-----------|
[ ANDROID ] [ MINOR ] [ {Framework} ] - | {Message} |
[----------] [-------------] [-------------] |-----------|
[CATEGORY] [TYPE] [LOCATION] - MESSAGE
EXAMPLES:
[IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
[ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
[CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
[DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
[GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
[INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->
[GENERAL][BUGFIX][VirtualizedList] - account for `ListHeaderComponent` length
Closes https://github.com/facebook/react-native/pull/17415
Differential Revision: D8683555
Pulled By: hramos
fbshipit-source-id: 05df7b79c16e3c07c12468e782f3c4b0bdce7403
Summary:
Bump Prettier to use version 1.13.4
All code changes are caused by running Prettier and should only affect files that have an `format` header.
All other changes caused by yarn.
Reviewed By: ryanmce
Differential Revision: D8251255
fbshipit-source-id: 0b4445c35f1269d72730f2000002a27c1bc35914
Summary:
Jest will now exclude undefined props from snapshots (https://github.com/facebook/jest/pull/6162). Updating the snapshots should fix the current `test_javascript` failures.
Circle CI
[INTERNAL][MINOR][Snapshots] - Update snapshots
Closes https://github.com/facebook/react-native/pull/19414
Differential Revision: D8125193
Pulled By: hramos
fbshipit-source-id: db8dcfcd8afbf9d6256f83c6e922680a7872d776
Summary:
StrictMode compliance is important for Async Rendering and other Future Tech(tm).
Also clean up some lint.
== Test Plan ==
* No more StrictMode warnings for `FlatList` (`VirtualizedList` is another story....).
* props warnings still show up when appropriate.
Reviewed By: sophiebits
Differential Revision: D8026333
fbshipit-source-id: e6fa2f02d546b883df6f3cff8776c26c6ef91bc9
Summary:
VirtualizedList sets high priority rendering when scrolled to the top of a list even if the bottom of the rendered list is still far away and there's nothing further to render above. This causes severe non-responsiveness while dozens of items are waiting to be rendered and user inputs can't get through.
The fix is simply to not consider it high priority to render more items when we reach the top and the first item has already been rendered, or when we reach the bottom and the last item has been rendered.
The code change just splits the two cases (hitting the top and bottom) instead of combining them into one.
I wrote a small application that switches between two FlatLists.
Demo of the original VirtualizedList
<img src="https://user-images.githubusercontent.com/3090032/39456709-2c87069e-4d1b-11e8-8535-5bda6d59400c.gif" width="270" height="480">
I'm clicking pretty often on the button, but you can see that it only switches lists a split second after the rendering is all done because the javascript thread was being blocked.
Demo of the fixed VirtualizedList
<img src="https://user-images.githubusercontent.com/3090032/39456844-00312448-4d1c-11e8-805f-cbe17aa3f95e.gif" width="270" height="480">
You can see this one is significantly more responsive than the previous one.
The source code for the demo application is available [here](https://gist.github.com/jabbawookiees/ba93a4e7b4f9b8f3acbc157e4fd04877)
[ GENERAL ] [ ENHANCEMENT ] [ Libraries/Lists/VirtualizedList.js ] - Prevent high priority rendering at the top or bottom of a list.
Closes https://github.com/facebook/react-native/pull/19081
Differential Revision: D7933994
Pulled By: sahrens
fbshipit-source-id: 13c9f73baeb3487620b720854a753287ac0aa1fa
Summary:
This PR removes the need for having the `providesModule` tags in all the modules in the repository.
It configures Flow, Jest and Metro to get the module names from the filenames (`Libraries/Animated/src/nodes/AnimatedInterpolation.js` => `AnimatedInterpolation`)
* Checked the Flow configuration by running flow on the project root (no errors):
```
yarn flow
```
* Checked the Jest configuration by running the tests with a clean cache:
```
yarn jest --clearCache && yarn test
```
* Checked the Metro configuration by starting the server with a clean cache and requesting some bundles:
```
yarn run start --reset-cache
curl 'localhost:8081/IntegrationTests/AccessibilityManagerTest.bundle?platform=android'
curl 'localhost:8081/Libraries/Alert/Alert.bundle?platform=ios'
```
[INTERNAL] [FEATURE] [All] - Removed providesModule from all modules and configured tools.
Closes https://github.com/facebook/react-native/pull/18995
Reviewed By: mjesun
Differential Revision: D7729509
Pulled By: rubennorte
fbshipit-source-id: 892f760a05ce1fddb088ff0cd2e97e521fb8e825
Summary:
invertStickyHeaders was being set to "this.props.inverted" -- it should just inherit from the props of VirtualizedList instead, per discussion in https://github.com/facebook/react-native/issues/18471Fixes#18471
Pass "invertStickyHeaders: false" to a SectionList (or FlatList), and expect that your sticky headers stick to the bottom of the ScrollView, instead of the top.
none
[ANDROID] [BUGFIX] [SectionList] - invertStickyHeaders can now be set from SectionList or FlatList.
Closes https://github.com/facebook/react-native/pull/18524
Differential Revision: D7386163
Pulled By: hramos
fbshipit-source-id: 3b66dfca280e657303f69f98c5a8bc0df033f9f7
Summary:
A common UI pattern for list empty states is some text/images centered inside the visible part of the list. This is pretty hard to do currently because we wrap ListEmptyComponent with an extra view with no way to style it so we cannot just use `flex: 1` to make it fill the available space.
- Added an example of ListEmptyComponent in the FlatList example in RNTester
Before (no way to make ListEmptyComponent fill the space):
<img width="377" alt="screen shot 2018-03-05 at 5 24 15 pm" src="https://user-images.githubusercontent.com/2677334/37003152-129db3ac-209a-11e8-9600-110f10d57144.png">
After:
<img width="377" alt="screen shot 2018-03-05 at 5 09 20 pm" src="https://user-images.githubusercontent.com/2677334/37002809-e6971178-2098-11e8-8cf7-74bfb2f6a992.png">
- Tested some edge cases like returning null from the ListEmptyComponent
- Tested in an app that uses FlatList + ListEmptyComponent
[GENERAL] [MINOR] [VirtualizedList] - Don't wrap ListEmptyComponent in an extra view
Closes https://github.com/facebook/react-native/pull/18206
Differential Revision: D7266274
Pulled By: sahrens
fbshipit-source-id: 4636d2418474a4c86ac63e5e18a9afc391a518c5
Summary:
Migrating everything to import from StyleSheet instead of StyleSheetTypes.
Search and replaced
```
import type {StyleObj} from 'StyleSheetTypes';
```
to
```
import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
```
and then replacing `StyleObj` with `DangerouslyImpreciseStyleProp` and fixing up the remaining flow errors by hand.
Reviewed By: yungsters
Differential Revision: D7184077
fbshipit-source-id: b8dabb9d48038b5a997ab715687300bad57aa9d4
Summary:
Includes React Native and its dependencies Fresco, Metro, and Yoga. Excludes samples/examples/docs.
find: ^(?:( *)|( *(?:[\*~#]|::))( )? *)?Copyright (?:\(c\) )?(\d{4})\b.+Facebook[\s\S]+?BSD[\s\S]+?(?:this source tree|the same directory)\.$
replace: $1$2$3Copyright (c) $4-present, Facebook, Inc.\n$2\n$1$2$3This source code is licensed under the MIT license found in the\n$1$2$3LICENSE file in the root directory of this source tree.
Reviewed By: TheSavior, yungsters
Differential Revision: D7007050
fbshipit-source-id: 37dd6bf0ffec0923bfc99c260bb330683f35553e
Summary:
Right now when an interaction is recorded on a parent VirtualizedList, the interaction isn't passed on to its children. That means that if `waitForInteraction` is set to true for a child list's viewability helper, it will never trigger a VPV.
This change adds forwarding of these events inside `onBeginScrollDrag`. It also forwards the interaction state of the parent list at register time, in case a child list is rendered mid-scroll.
Reviewed By: sahrens
Differential Revision: D6822091
fbshipit-source-id: dfe300e42722d4285f65787ab2c1368f050c5577
Summary:
Sticky headers for inverted lists should still stick at the top of the list instead of the bottom.
Tested by adding the inverted prop to the SectionList example in RNTester.
It does add a prop to ScrollView but it's very specific to the inverted list implementation, not sure if it should be documented.
[GENERAL][ENHANCEMENT][LISTS] - Support sticky headers for inverted Lists
Closes https://github.com/facebook/react-native/pull/17762
Differential Revision: D6830784
Pulled By: sahrens
fbshipit-source-id: 6841fdd46e04b30547659d85ff54c3a21c61a8a2
Summary:
`renderItem` on `SectionList` is within the `OptionalProps` group of props but it is not actually marked as optional. Which means that doing things such as in the example where each section has its own `renderItem` and no `renderItem` prop is passed into `SectionList` will fail flow.
Create a `SectionList` where each section has it's own `renderItem` and do not pass in a `renderItem` into `SectionList`. Run flow, it should error.
[GENERAL] [MINOR] [SectionList] -Makes `renderItem` prop on `SectionList` optional for flow.
Closes https://github.com/facebook/react-native/pull/17262
Differential Revision: D6645672
Pulled By: hramos
fbshipit-source-id: 1096e8c4998c14003cf42f29ea559505082047c1
Summary:
Setting `windowSize = 0` doesn't make sense. Let's make sure we catch this problem in the constructor so that it doesn't cause inexplicable list behavior.
Also fixed an invariant in `VirtualizeUtils` that is meant to prohibit non-monotonically-increasing offset arrays. As written, the invariant condition can never actually be violated.
Reviewed By: sahrens
Differential Revision: D6625302
fbshipit-source-id: b2a983cbe7bb5fbe0aed7c5d59e69a8a00672993
Summary:
The change enabling virtualization in nested lists contained a hidden assumption that nested lists would only appear within the *cells* of a parent list.
If a list header or footer component contains a `VirtualizedList`, that child list won't be wrapped in a `CellRenderer` component and therefore won't have access to `virtualizedCellRenderer` through its context. This causes an error when the child list tries to access the `cellKey` property on an undefined object.
This change wraps the header/footer views in a `VirtualizedCellWrapper` component which supplies that context properly.
Reviewed By: sahrens
Differential Revision: D6603342
fbshipit-source-id: 4d2d82f04947048a16ec9968121d8ecc8c95655a
Summary:
$FlowFixMe suppressed type validation on _listRef. Add appropriate typing to let Flow succeed when $FlowFixMe is removed.
Not sure what this project's philosophy around ref types is. In some places I've seen them annotated as any rather than trying to get a more granular type to match. I'm open to suggestions.
`yarn flow`
[INTERNAL] [ENHANCEMENT] [FlatList.js] - Remove $FlowFixMe from FlatList
Closes https://github.com/facebook/react-native/pull/16882
Differential Revision: D6386479
Pulled By: hramos
fbshipit-source-id: bed14f2c7071525cb46425ab14214771de0277f3
Summary:
In the current implementation of the `VirtualizedList` the `onViewableItemsChanged` callback wouldn't trigger if the underlying list data changes. (see example snack https://snack.expo.io/Hk5703eBb)
I added a method in the `ViewabilityHelper` to invalidate the cached viewableIndices, which gets triggered when the list-data changes.
Closes https://github.com/facebook/react-native/pull/14922
Differential Revision: D5864537
Pulled By: sahrens
fbshipit-source-id: 37f617763596244208548817d5b138dadc12c75d
David Vacca
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