Commit 60d8b28
feat(Pressable): add support for PlatformColor and alpha (#56395)
Summary:
`android_ripple` on `Pressable` (and `TouchableNativeFeedback.Ripple()`) only
accepted numeric (pre-processed ARGB int) colors. Passing a `PlatformColor`
would throw an invariant in JS, making theme-aware ripple colors impossible.
This PR removes those guards and wires up the full color pipeline:
1. **JS** (`useAndroidRippleForView.js`, `TouchableNativeFeedback.js`):
removed the `invariant` that rejected non-numeric processed colors.
`TouchableNativeFeedback.Ripple()` now accepts `ColorValue` instead of
`string`.
2. **C++** (`NativeDrawable.h`, `HostPlatformViewProps.cpp`): `color`
changed from `int32_t` to `SharedColor` + a separate `colorResourcePaths`
field for `PlatformColor` resource paths. The `fromRawValue` pipeline now
resolves both plain colors and `PlatformColor` objects.
3. **Kotlin** (`ReactDrawableHelper.kt`): `getColor()` now handles both
numeric and `PlatformColor` map values via `ColorPropConverter.getColor()`,
catching `JSApplicationCausedNativeException` to fall back gracefully
instead of crashing.
4. **Theme change support** (`ReactViewGroup.kt`): the raw drawable
description maps are retained on the view, and `onConfigurationChanged`
re-applies them so ripple colors update automatically on light/dark mode
switch.
A new `alpha: number` (0–1) field is also added so users can apply opacity to
a `PlatformColor` whose value is fully opaque and can't have alpha embedded at
the JS level. It is applied by multiplying into the resolved color's alpha
channel.
Unresolvable `PlatformColor` resources are handled gracefully: on New Arch,
C++ omits the `color` key so Kotlin falls back to `colorControlHighlight`; on
Old Arch, `ReactDrawableHelper` catches the `JSApplicationCausedNativeException`
and falls back to `colorControlHighlight` instead of crashing.
## Changelog:
[ANDROID] [ADDED] - `android_ripple` now accepts `PlatformColor` for
theme-aware ripple colors, and a new `alpha` (0–1) parameter for controlling
ripple opacity independently of the color value.
Pull Request resolved: #56395
Test Plan:
**Automated:**
- Existing Pressable snapshot tests pass unchanged.
- Updated snapshot for `PlatformColor + alpha` to use `?attr/colorAccent`
(matching the RNTester example).
- Added snapshot test `should not crash with an unresolvable PlatformColor`
verifying the component renders at the JS level without throwing.
**Manual (RNTester → Pressable → "Pressable with PlatformColor ripple and alpha"):**
1. `PlatformColor('?attr/colorAccent'), no alpha` → full-opacity accent ripple
2. `PlatformColor('?attr/colorAccent'), alpha=0.3` → 30% opacity accent ripple
3. `#FF0000, no alpha` → full red ripple (regression check)
4. `#FF0000, alpha=0.5` → 50% opacity red ripple
5. Toggle system light/dark mode → ripple color updates automatically
6. Pass an intentionally invalid attribute (e.g. `?attr/doesNotExist`) → no
crash, ripple falls back to default `colorControlHighlight` grey
[Screen_recording_20260410_091000.webm](https://github.com/user-attachments/assets/5607d267-8cf1-4bbe-bad1-a80aac82d027)
> [!NOTE]
This is required in [React Native Paper](https://github.com/callstack/react-native-paper) to be able to fully support the Material Design specs but also useful as a general purpose feature for providing more flexibility when customizing ripple color.
Reviewed By: javache
Differential Revision: D105819708
Pulled By: fabriziocucci
fbshipit-source-id: d27c43e0b4e619b6af1c8de0cdb2882db05ee33c1 parent c6dd6f9 commit 60d8b28
17 files changed
Lines changed: 642 additions & 118 deletions
File tree
- packages
- react-native
- Libraries/Components
- Pressable
- __tests__
- __snapshots__
- Touchable
- View
- ReactAndroid
- api
- src/main/java/com/facebook/react/views/view
- ReactCommon/react/renderer/components/view/platform/android/react/renderer/components/view
- rn-tester/js/examples/Pressable
- scripts/cxx-api/api-snapshots
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