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:
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:
We are moving away from `setNativeProps` in favour of commands API.
changelog: [internal]
Reviewed By: JoshuaGross
Differential Revision: D17765031
fbshipit-source-id: fcfe3fe68abb3e49e2dd7a102db598ade749acde
Summary:
These were being cast to a NativeComponent but that is no longer accurate. `requireNativeComponent` returns the type of `HostComponent` now which is more accurate. We don't need the cast through `any` anymore.
In order to know that I found all the callsites, I ran this command to find these:
```
grep -r "requireNativeComponent" react-native-github -C 5 | grep 'any'
```
Changelog:
[Internal]
Reviewed By: cpojer
Differential Revision: D17864165
fbshipit-source-id: 3774d6d47d7bb0d885cc1a1352f81fec7d3bca0d
Summary: Props are being ignored on native side, let's get rid of them.
Reviewed By: TheSavior
Differential Revision: D17765185
fbshipit-source-id: d3625dd25d2e41a49e701d54fe9a7b74cd47786c
Summary:
This is the next step in moving RN towards standard path-based requires. All the requires in `Libraries` have been rewritten to use relative requires with a few exceptions, namely, `vendor` and `Renderer/oss` since those need to be changed upstream. This commit uses relative requires instead of `react-native/...` so that if Facebook were to stop syncing out certain folders and therefore remove code from the react-native package, internal code at Facebook would not need to change.
See the umbrella issue at https://github.com/facebook/react-native/issues/24316 for more detail.
[General] [Changed] - Migrate "Libraries" from Haste to standard path-based requires
Pull Request resolved: https://github.com/facebook/react-native/pull/24749
Differential Revision: D15258017
Pulled By: cpojer
fbshipit-source-id: a1f480ea36c05c659b6f37c8f02f6f9216d5a323
Summary:
[iOS] [Changed] - As #22990 said, move requireNativeComponent to a separate file.
I am not familiar with flow, I try to follow the https://pastebin.com/RFpdT76V example but I am not sure I have done it right.
Pull Request resolved: https://github.com/facebook/react-native/pull/22996
Differential Revision: D13697082
Pulled By: cpojer
fbshipit-source-id: c0c87a8e1a7f0553da994aba230f69b496140200
Tom Underhill
Kevin Gonzales
Eli White
Samuel Susla
Andres Suarez
James Ide
Chi-AnTai
