Summary:
This gets us on the latest Prettier 2.x:
https://prettier.io/blog/2020/03/21/2.0.0.html
Notably, this adds support for TypeScript 3.8,
which introduces new syntax, such as `import type`.
Reviewed By: zertosh
Differential Revision: D20636268
fbshipit-source-id: fca5833d003804333a05ba16325bbbe0e06d6c8a
Summary:
Fixed some url in the code that was outdated.
## Changelog
[Internal] [Fixed] - Fix outdated url in Image Example of RNTester and comment in StyleSheet Type
Pull Request resolved: https://github.com/facebook/react-native/pull/28285
Test Plan: Url can be accessed, and content displayed makes sense.
Differential Revision: D20464293
Pulled By: shergin
fbshipit-source-id: f0c97f7a95ed2a3d6c396cff6cda0bdaab7f5c35
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/28058
I'm taking the first step towards supporting iOS 13 UIScene APIs and modernizing React Native not to assume an app only has a single window. See discussion here: https://github.com/facebook/react-native/issues/25181#issuecomment-505612941
The approach I'm taking is to take advantage of `RootTagContext` and passing it to NativeModules so that they can identify correctly which window they refer to. Here I'm just laying groundwork.
- [x] `Alert` and `ActionSheetIOS` take an optional `rootTag` argument that will cause them to appear on the correct window
- [x] `StatusBar` methods also have `rootTag` argument added, but it's not fully hooked up on the native side — this turns out to require some more work, see: https://github.com/facebook/react-native/issues/25181#issuecomment-506690818
- [x] `setNetworkActivityIndicatorVisible` is deprecated in iOS 13
- [x] `RCTPerfMonitor`, `RCTProfile` no longer assume `UIApplicationDelegate` has a `window` property (no longer the best practice) — they now just render on the key window
Next steps: Add VC-based status bar management (if I get the OK on https://github.com/facebook/react-native/issues/25181#issuecomment-506690818 ), add multiple window demo to RNTester, deprecate Dimensions in favor of a layout context, consider adding hook-based APIs for native modules such as Alert that automatically know which rootTag to pass
## Changelog
[Internal] [Changed] - Modernize Modal to use RootTagContext
[iOS] [Changed] - `Alert`, `ActionSheetIOS`, `StatusBar` methods now take an optional `surface` argument (for future iPadOS 13 support)
[iOS] [Changed] - RCTPresentedViewController now takes a nullable `window` arg
[Internal] [Changed] - Do not assume `UIApplicationDelegate` has a `window` property
Pull Request resolved: https://github.com/facebook/react-native/pull/25425
Test Plan:
- Open RNTester and:
- go to Modal and check if it still works
- Alert → see if works
- ACtionSheetIOS → see if it works
- StatusBar → see if it works
- Share → see if it works
Reviewed By: PeteTheHeat
Differential Revision: D16957751
Pulled By: hramos
fbshipit-source-id: ae2a4478e2e7f8d2be3022c9c4861561ec244a26
Summary:
This Pull Request implements the PlatformColor proposal discussed at https://github.com/react-native-community/discussions-and-proposals/issues/126. The changes include implementations for iOS and Android as well as a PlatformColorExample page in RNTester.
Every native platform has the concept of system defined colors. Instead of specifying a concrete color value the app developer can choose a system color that varies in appearance depending on a system theme settings such Light or Dark mode, accessibility settings such as a High Contrast mode, and even its context within the app such as the traits of a containing view or window.
The proposal is to add true platform color support to react-native by extending the Flow type `ColorValue` with platform specific color type information for each platform and to provide a convenience function, `PlatformColor()`, for instantiating platform specific ColorValue objects.
`PlatformColor(name [, name ...])` where `name` is a system color name on a given platform. If `name` does not resolve to a color for any reason, the next `name` in the argument list will be resolved and so on. If none of the names resolve, a RedBox error occurs. This allows a latest platform color to be used, but if running on an older platform it will fallback to a previous version.
The function returns a `ColorValue`.
On iOS the values of `name` is one of the iOS [UI Element](https://developer.apple.com/documentation/uikit/uicolor/ui_element_colors) or [Standard Color](https://developer.apple.com/documentation/uikit/uicolor/standard_colors) names such as `labelColor` or `systemFillColor`.
On Android the `name` values are the same [app resource](https://developer.android.com/guide/topics/resources/providing-resources) path strings that can be expressed in XML:
XML Resource:
`@ [<package_name>:]<resource_type>/<resource_name>`
Style reference from current theme:
`?[<package_name>:][<resource_type>/]<resource_name>`
For example:
- `?android:colorError`
- `?android:attr/colorError`
- `?attr/colorPrimary`
- `?colorPrimaryDark`
- `android:color/holo_purple`
- `color/catalyst_redbox_background`
On iOS another type of system dynamic color can be created using the `IOSDynamicColor({dark: <color>, light:<color>})` method. The arguments are a tuple containing custom colors for light and dark themes. Such dynamic colors are useful for branding colors or other app specific colors that still respond automatically to system setting changes.
Example: `<View style={{ backgroundColor: IOSDynamicColor({light: 'black', dark: 'white'}) }}/>`
Other platforms could create platform specific functions similar to `IOSDynamicColor` per the needs of those platforms. For example, macOS has a similar dynamic color type that could be implemented via a `MacDynamicColor`. On Windows custom brushes that tint or otherwise modify a system brush could be created using a platform specific method.
## Changelog
[General] [Added] - Added PlatformColor implementations for iOS and Android
Pull Request resolved: https://github.com/facebook/react-native/pull/27908
Test Plan:
The changes have been tested using the RNTester test app for iOS and Android. On iOS a set of XCTestCase's were added to the Unit Tests.
<img width="924" alt="PlatformColor-ios-android" src="https://user-images.githubusercontent.com/30053638/73472497-ff183a80-433f-11ea-90d8-2b04338bbe79.png">
In addition `PlatformColor` support has been added to other out-of-tree platforms such as macOS and Windows has been implemented using these changes:
react-native for macOS branch: https://github.com/microsoft/react-native/compare/master...tom-un:tomun/platformcolors
react-native for Windows branch: https://github.com/microsoft/react-native-windows/compare/master...tom-un:tomun/platformcolors
iOS
|Light|Dark|
|{F229354502}|{F229354515}|
Android
|Light|Dark|
|{F230114392}|{F230114490}|
{F230122700}
Reviewed By: hramos
Differential Revision: D19837753
Pulled By: TheSavior
fbshipit-source-id: 82ca70d40802f3b24591bfd4b94b61f3c38ba829
Summary:
We will soon be enforcing that flow suppressions will only apply when on an error's primary location ([post](https://fb.workplace.com/groups/179614562644215/permalink/559286354677032/)). This diff uses the codemod created in D20008770 to move all suppression comments to their primary locations in the `xplat/js` flow root, and deletes suppression comments that are not on any primary locations.
This diff was generated with:
```
~/fbsource/fbcode/flow/packages/flow-dev-tools/bin/tool suppression-primary-locations --json-file ~/www/errors.json ~/fbsource/xplat/js
hg st -n | xargs grep -l -P '@(partially-)?generated' | xargs hg revert
hg st -n | xargs grep -l 'format' | xargs prettier --write
```
Changelog: [Internal]
bypass-lint
Reviewed By: dsainati1
Differential Revision: D20122544
fbshipit-source-id: d94e409aadb18bb399a1ddbf9f3f2494fe4fb54c
Summary:
We recently updated React Native's docs site to have its own domain reactnative.dev and needed to update the URLs in the source code
CHANGELOG:
[INTERNAL]
Reviewed By: hramos
Differential Revision: D20072842
fbshipit-source-id: 1970d9214c872a6e7abf697d99f8f5360b3b308e
Summary:
*Pressable* is a component which is intended to replace the Touchable* components such as *TouchableWithoutFeedback* and *TouchableOpacity*. The motivation is to make it easier to create custom visual touch feedback so that React Native apps are not easily identified by the “signature opacity fade” touch feedback.
We see this component as eventually deprecating all of the existing Touchable components.
Changelog:
[Added][General] New <Pressable> Component to make it easier to create touchable elements
Reviewed By: yungsters
Differential Revision: D19674480
fbshipit-source-id: 765d657f023caea459f02da25376e4d5a2efff8b
Summary:
motivation: there are cases where one'd like to control the radius of the ripple effect that's present on TouchableNativeFeedback - in my case, I want to make sure that both icons and text have the same ripple appearance, but that's currently not possible as far as I can tell.
Currently (afaik) the only way to set (upper) ripple limits is by specifying width, height and border radius ( + `overflow: hidden`), and this works well for icons which can usually be bounded by a square, but not for text which can have rectangular shape.
This PR adds `rippleRadius` parameter to `SelectableBackground()`, `SelectableBackgroundBorderless()` and `Ripple()` static functions present on `TouchableNativeFeedback`. It can make the ripple smaller but also larger. The result looks like this:
added to RNTester:
difference from the other ripples:
I'm ofc open to changing the api if needed, but I'm not sure there's much space for manoeuvring. While I was at it, I did a slight refactor of the class into several smaller, more focused methods.
It's possible that in some cases, this might help to work around this issue https://github.com/facebook/react-native/issues/6480.
## Changelog
[Android] [Added] - allow setting custom ripple radius on TouchableNativeFeedback
Pull Request resolved: https://github.com/facebook/react-native/pull/28009
Test Plan: I tested this locally using RNTester
Reviewed By: TheSavior
Differential Revision: D20004509
Pulled By: mdvacca
fbshipit-source-id: 10de1754d54c17878f36a3859705c1188f15c2a2
Summary:
This adds support for `adjustsFontSizeToFit` and `minimumFontScale` on Android. The implementation tries to match closely the behaviour on iOS (hardcoded 4px min size for example). It uses a simpler linear algorithm for now, opened to improving it now if it is a deal breaker or in a follow up.
See https://twitter.com/janicduplessis/status/1171147709979516929 for a more detailed thread about the implementation
## Changelog
[Android] [Added] - Implement `adjustsFontSizeToFit` on Android
Pull Request resolved: https://github.com/facebook/react-native/pull/26389
Test Plan: Tested by adding the existing `adjustsFontSizeToFit` example from the iOS text page to android. Also added a case for limiting size by using `maxHeight` instead of `numberOfLines`.
Reviewed By: mdvacca
Differential Revision: D17285473
Pulled By: JoshuaGross
fbshipit-source-id: 43dbdb05e2d6418e9a390d11f921518bfa58e697
Summary:
**Resolve/Reject Promise**
* Add onFulfill and onReject to the `PushNotificationIOS.requestPermissions()` Promise
**Replace Apple-deprecated notification method**
* Old: In iOS 10, `UIApplication.registerUserNotificationSettings` was deprecated. Calling this would then call the AppDelegate's lifecycle function `didRegisterUserNotificationSettings`, and then in the AppDelegate, we'd call `RCTPushNotificationManager.didRegisterUserNotificationSettings` to return the user settings.
[registerusernotificationsettings Doc](https://developer.apple.com/documentation/uikit/uiapplication/1622932-registerusernotificationsettings?language=objc)
* New: Replace deprecated function with Apple's recommended `UNUserNotificationCenter.currentNotificationCenter getNotificationSettingsWithCompletionHandler`, which no longer needs the AppDelegate lifecycle method because it directly returns the user's settings in a completion hander.
[requestauthorizationwithoptions Doc](https://developer.apple.com/documentation/usernotifications/unusernotificationcenter/1649527-requestauthorizationwithoptions?language=objc)
**Add Tests**
* Add tests on `PushNotificationIOSExample.js` to test that the onFulfill and onReject are called
* On `PushNotificationIOSExample.js`, instead of asking permission upon page load, ask for permission when the user taps the button "Request Notifications (Should Display Alert)".
* Before, asking for permission multiple times before would result in the RN error "cannot call requestPermissions twice before the first has returned", now you can ask for permission as many times as you want because I've removed the now unused `RCTPromiseResolveBlock`.
**Future**
If this works on device (we have to land this to test push on device), we can delete `RTCPushNotificationManager.didRegisterUserNotificationSettings` which is being called from several apps.
Changelog:
[iOS] [Added] Resolve and reject promise for PushNotificationIOS.requestPermissions
Reviewed By: PeteTheHeat
Differential Revision: D19700061
fbshipit-source-id: 02ba815787efc9047f33ffcdfafe962b134afe6d
Summary:
This test has been failing internally because it attempts to access external images during CI execution, which it is blocked from doing. Because Detox synchronizes with the app to make sure network requests and animations are complete before continuing, the test waits indefinitely for these images to be fetched.
This diff makes the following changes
* External images are replaced with fb-hosted images
* Timeout threshold is reduced
* Detox initialization is broken out into two steps to help debug any future instances of this occurring
* If Detox is blocked for over 20 seconds, diagnostic messages will be printed indicating why it's being blocked
Changelog: [Internal]
Reviewed By: TheSavior
Differential Revision: D19671592
fbshipit-source-id: 368c683101ed7fc68578fc7758061b31c96c241d
Summary:
In order to be sure that 0.62 does not require an exact-by-default codebase, we should get rid of any `{}` occurrences inside of react-native-github. If all the object types in react-native-github are either explicitly exact `{||}` or explicitly inexact `{...}` then those object types will have consistent semantics regardless of the Flow settings in the client codebase.
Changelog: [Internal]
Reviewed By: rickhanlonii
Differential Revision: D19347283
fbshipit-source-id: 4c199bd7f1684b70df1b1c717941d0d477f67117
Summary:
As a part of the migration from setNativeProps in Fabric and Paper, we are replacing it by view commands in the RefreshControl component on Android.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D18475450
fbshipit-source-id: ad89547fada3444f725fd9b00e8482cfc8f4d7fc
Summary:
The latest xcode version removed iPhone 6s, so we need to bump to the latest simulator listed that has 3d touch.
## Changelog
[General] [Fix] - Bump e2e simulator version
Pull Request resolved: https://github.com/facebook/react-native/pull/27733
Test Plan: - `yarn build-ios-e2e && yarn test-ios-e2e `
Reviewed By: hramos, sammy-SC
Differential Revision: D19345576
Pulled By: rickhanlonii
fbshipit-source-id: 428cb83ccb899409e972551f18df580174adee91
Summary:
With a Picker we would like to allow accessibility labels to be passed as a prop for situations where we want go give more detail. For example if we have a number picker that will be used for a timer instead of just saying 3, we might want to say 3 hours.
## Changelog
[General] [Added] - Picker test with an accessibility label prop
[General] [Added] - Support for accessibility Label prop to the Picker component
Pull Request resolved: https://github.com/facebook/react-native/pull/27342
Test Plan: Test plan is testing in RNTester making sure the examples work
Differential Revision: D18770184
Pulled By: hramos
fbshipit-source-id: e6f8ab4a9c50f3fb46342198441ecc71394913d3
Summary:
Launches a new implementation of `TouchableNativeFeedback`.
It is implemented using `Pressability` and extends `React.Component`. Notably, `propTypes` no longer exist.
Furthermore, `TouchableNativeFeedback` now behaves similar to `TouchableWithoutFeedback` on iOS (instead of rendering an error message).
Changelog:
[General] [Changed] - TouchableNativeFeedback overhauled as a class without propTypes. Also, replaced iOS error renderer.
Reviewed By: TheSavior
Differential Revision: D18715857
fbshipit-source-id: aa42c7547ac94340fde0ef30641cab7eb48ea81b
Summary:
The following accessibility properties was added for view but not for Touchables - importantForAccessibility, accessibilityLiveRegion, accessibilityViewIsModal and accessibilityElementsHidden. This PR is to extend the support for all touchables.
## Changelog
[General] [Added] - Add missing accessibility props on Touchables
Pull Request resolved: https://github.com/facebook/react-native/pull/27293
Test Plan: Tested in RNTester app.
Differential Revision: D18650884
Pulled By: yungsters
fbshipit-source-id: 2172ac55a8c8803d7d923511f43b2598593ea1d2
Summary:
Switch the only `// eslint-disable no-undef` to defined the global instead so that the new babel-eslint-no-undef compile time check doesn't need to understand inline eslint comments.
Changelog: [Internal]
Reviewed By: cpojer
Differential Revision: D18644590
fbshipit-source-id: ac9c6da3a5e63b285b5e1dde210613b5d893641b
Summary:
Android and iOS have different RNTester examples even though they should be mostly the same. Pull out the common ones into their own file. This should also be useful for other platforms.
Changelog:
[Internal]
(Note: this ignores all push blocking failures!)
Reviewed By: JoshuaGross
Differential Revision: D18628890
fbshipit-source-id: 6f1312973aebcfc687fdd8807bf942e48172f216
Summary:
Modernizing this code a bit more, converting it to hooks.
Changelog:
[General][Changed] Converted TextInput to use React hooks
[General][Fixed] TextInput now properly sends native the end selection location on change
(Note: this ignores all push blocking failures!)
Reviewed By: JoshuaGross
Differential Revision: D18581712
fbshipit-source-id: 62d6ea8489fa019ddf941c520930365f2c4887d8
Summary:
We are rolling out exact-by-default syntax to xplat/js.
I had to manually move around some comments to preserve proper placement.
Changelog: [Internal]
Reviewed By: jbrown215
Differential Revision: D18633611
fbshipit-source-id: 48f7468dcc55b1d00985419d035a61c6820b3abe
Summary:
sans-serif doesn't exist on iOS. Using a different font as an example
Changelog:
[Internal]
Reviewed By: JoshuaGross
Differential Revision: D18435314
fbshipit-source-id: bd86291c8e858f62b3946b7d4b04df4fb3f969f2
Summary:
Changing PanResponderExample to use React state instead of setNativeProps. Fabric likely won't have setNativeProps so this is a conversion in that direction. This is probably one of the most complicated usages of setNativeProps and it feels *okay* with React state. I'm sure it is worse on lower end devices though.
In general we know that going to JS for an animation is not the correct approach so this getting worse in Fabric is probably fine for that reason too. Staying in native with something like react-native-gesture-handler is probably more aligned with the future.
Changelog:
[Internal]
Reviewed By: lunaleaps
Differential Revision: D18258130
fbshipit-source-id: eed6a8eb839c6607463f3140191945ea753a697b
Summary:
This pull request migrates the animated flip example in `TransformExample` to using React Hooks.
## Changelog
[General] [Changed] - RNTester: Migrate TransformExample to hooks
Pull Request resolved: https://github.com/facebook/react-native/pull/27181
Test Plan: The animation works exactly as it did as when it was a class component
Differential Revision: D18418200
Pulled By: mdvacca
fbshipit-source-id: 129298319dbf1774d06fe5c6e5ab60cd028449bb
Summary:
This pull request adds a missing key attribute to an array of elements in the example for `NewAppScreen`. This results in the "missing key" warning no longer appearing when viewing this example.
## Changelog
[General] [Fixed] - RNTester: Add missing key attribute in NewAppScreen example
Pull Request resolved: https://github.com/facebook/react-native/pull/27180
Test Plan: When viewing this example in RNTester, this warning is no longer printed.
Differential Revision: D18418198
Pulled By: mdvacca
fbshipit-source-id: 8fbe51da7b714e3e94fd2186ea8cc4e3606d9f95
Summary:
still some generated files in www that need to land before we can release 0.111 here.
drop-conflicts
Changelog: [Internal]
(Note: this ignores all push blocking failures!)
Reviewed By: dsainati1
Differential Revision: D18278838
fbshipit-source-id: b20c3fefb3aab7c5fb614b33d846c7548184f49a
Summary:
This will allow us to catch cases where we use iOS 10-only APIs on iOS 9
Changelog: [Internal]
Reviewed By: TheSavior, mmmulani
Differential Revision: D18275225
fbshipit-source-id: dc9c515415208db40750be997173ce5bd6eb494f
Summary:
Updates the return type of `createAnimatedComponent` to reflect the new behavior (where we forward the ref to the internal component).
I also improved the type annotation for `Props` so that we can still enforce that only valid prop names are supplied. (We still do not check the prop values because we do not currently have a good strategy for typing the "animated versions" of those.)
Changelog:
[General] [Changed] - Flow types for Animated components now validates prop names and yields the new component instance.
Reviewed By: TheSavior
Differential Revision: D18290473
fbshipit-source-id: 8c629ab6aff009ebe6dabca1683c99a357869977
Summary:
Changes `createAnimatedComponent` so that a `ref` assigned to an Animated component will now be forwarded to the internal component. Previously, a ref to the internal component was accessed using the `getNode` method. The `getNode` method is now deprecated and will return the same `ref` but show a deprecation error.
Changelog:
[General] [Changed] - Refs on an Animated component are now the internal component. The `getNode` call has been deprecated.
Reviewed By: TheSavior
Differential Revision: D18290474
fbshipit-source-id: 5849809583a17624a89071db8be1282a12caedf3
Summary:
With tvOS (Apple TV) now residing in a separately maintained fork, this removes the residual props from React Native. This only includes the JavaScript changes. The Objective-C changes will come later.
Specifically, the following props have been removed:
- `isTVSelectable`
- `tvParallaxProperties`
- `tvParallaxShiftDistanceX`
- `tvParallaxShiftDistanceY`
- `tvParallaxTiltAngle`
- `tvParallaxMagnification`
Note that `hasTVPreferredFocus` is still being used by Android TV, so it remains.
Changelog:
[Removed] Apple TV View Props
Reviewed By: TheSavior
Differential Revision: D18266278
fbshipit-source-id: 9d1448bf2f434a74e6eb23c70d3a37971e406768
Summary:
Android was missing support for the `fontVariant` prop in TextViews, this PR adds that.
## Changelog
[Android] [Added] - Add Android support for fontVariant prop
Pull Request resolved: https://github.com/facebook/react-native/pull/27006
Test Plan:
Since I can't get RNTester to work locally (it crashes when loading `libyoga.so` on `No implementation found for long com.facebook.yoga.YogaNative.jni_YGConfigNew()`), I'll post some screenshots below of our app showing the difference.
We are using a slightly different [version](10cafcaa07) of this commit, since we're still on 0.60, but the gist remains the same when rebased on master.
Before:
After:
Differential Revision: D18179642
Pulled By: mdvacca
fbshipit-source-id: 03a050aa76e7bafa0343354dfa778cf74af5abd2
Summary:
Currently the react native framework doesn't handle the accessibility state changes of the focused item that happen not upon double tapping. Screen reader doesn't get notified when the state of the focused item changes in the background.
To fix this problem, post a layout change notification for every state changes on iOS.
On Android, send a click event whenever state "checked", "selected" or "disabled" changes. In the case that such states changes upon user's clicking, the duplicated click event will be skipped by Talkback.
## Changelog:
[General][Fixed] - Announce accessibility state changes happening in the background
Pull Request resolved: https://github.com/facebook/react-native/pull/26624
Test Plan: Add a nested checkbox example which state changes after a delay in the AccessibilityExample.
Differential Revision: D17903205
Pulled By: cpojer
fbshipit-source-id: 9245ee0b79936cf11b408b52d45c59ba3415b9f9
Summary:
We found that many callsites existed that could be using the native driver, but weren't. In order to help people use it when appropriate and eventually switch the default, we are requiring that useNativeDriver is explicit, even when set to false.
This change adds a runtime warning if useNativeDriver is not specified, hopefully giving some light feedback to remember to use the native driver when you can. Without it being explicit it is very easy to forget setting this.
Reviewed By: JoshuaGross
Differential Revision: D17575918
fbshipit-source-id: e54612d87177e1821692b7de20fe673df0e890d2
Summary:
When using a medium (500) font weight on Android the wrong weight is used for the placeholder and for the first few seconds of input (before it gets text back from JS). To fix it I refactored the way we handle text styles (family, weight, style) to create a typeface to be more like the `Text` component.
Since all these 3 props are linked and used to create the typeface object it makes more sense to do it at the end of setting props instead of in each prop handler and trying to recreate the object without losing styles set by other prop handlers. Do do that we now store fontFamily, fontStyle and fontWeight as ivar of the ReactEditText class. At the end of updating prop if any of those changed we recreate the typeface object.
This doesn't actually fix the bug but was a first step towards it. There were a bunch of TODOs in the code to remove duplication between `Text` and `TextInput` for parsing and creating the typeface object. To do that I simply moved the code to util functions in a static class. Once the duplication was removed the bug was fixed! I assume proper support for medium font weights was added for `Text` but not in the duplicated code for `TextInput`.
## Changelog
[Android] [Fixed] - Fix medium font weights for TextInput on Android
Pull Request resolved: https://github.com/facebook/react-native/pull/26434
Test Plan:
Tested in my app and in RNTester that custom styles for both text and textinput all seem to work.
Repro in RNTester:
```js
function Bug() {
const [value, setValue] = React.useState('');
return (
<TextInput
style={[
styles.singleLine,
{fontFamily: 'sans-serif', fontWeight: '500', fontSize: 32},
]}
placeholder="Sans-Serif 500"
value={value}
onChangeText={setValue}
/>
);
}
```
Before:
After:
Reviewed By: mmmulani
Differential Revision: D17468825
Pulled By: JoshuaGross
fbshipit-source-id: bc2219facb94668551a06a68b0ee4690e5474d40
Summary:
React Native components need a mechanism to specify their value to assistive technologies. This PR adds the notion of accessibilityValueDescription-- a property which either contains a textual description of a component's value, or for range-based components, such as sliders and progress bars, it contains range information (minimum, current, and maximum).
On iOS, the range-based info if present is converted into a percentage and added to the accessibilityValue property of the UIView. If text is present as part of the accessibilityValueDescription, it is used instead of the range-based information.
On Android, any range-based information in accessibilityValueDescription is exposed in the AccessibilityNodeInfo's RangeInfo. Text which is part of accessibilityValueDescription is appended to the content description.
## Changelog
[GENERAL] [Change] - add accessibilityValuedescription property.
Pull Request resolved: https://github.com/facebook/react-native/pull/26169
Test Plan: Added two new accessibility examples to RNTester, one which uses text and another which uses range-based info in accessibilityValueDescription. Verified that they both behave correctly on both Android and iOS.
Differential Revision: D17444730
Pulled By: cpojer
fbshipit-source-id: 1fb3252a90f88f7cafe1cbf7db08c03f14cc2321
Michael Bolin
Jesse Katsumata
Alec Larson
Logan Daniels
radex
Tom Underhill
Hans Halverson
Rachel Nabors
Pieter De Baets
Eli White
Vojtech Novak
Janic Duplessis
Paige Sun
Chad Smith
Jordan Brown
Oleksandr Melnykov
Rick Hanlon
Panagiotis Vekris
Héctor Ramos
Kevin Gonzales
Joshua Gross
Tim Yung
Sharon Gong
George Zahariev
empyrical
Samuel Susla
Maurus Cuelenaere
Andres Suarez
Mike Vitousek
Marc Mulcahy
