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…guide and example (#45122) # Why We want an ability to extend Expo UI with custom Compose views and modifiers. This PR adds related APIs, examples and guide for the same. <!-- Please describe the motivation for this PR, and link to relevant GitHub issues, forums posts, or feature requests. --> # How - Added `unregister` method to `ModifierRegistry` to unregister to modifier, similar to iOS - Exported `createModifier`, `createViewModifierEventListener` - Added example in NCL - Added a documentation guide. <!-- How did you build this feature or fix this bug and why? --> # Test Plan Test Extend Expo UI example in NCL Expo UI screen. <img width="200" height="auto" alt="Screenshot 2026-04-27 at 6 19 28 PM" src="https://github.com/user-attachments/assets/8a6a2c49-0e73-4ab9-807a-575fd4df43c7" /> <!-- Please describe how you tested this change and how a reviewer could reproduce your test, especially if this PR does not include automated tests! If possible, please also provide terminal output and/or screenshots demonstrating your test/reproduction. --> # Checklist <!-- Please check the appropriate items below if they apply to your diff. --> - [x] I added a `changelog.md` entry and rebuilt the package sources according to [this short guide](https://github.com/expo/expo/blob/main/CONTRIBUTING.md#-before-submitting) - [x] This diff will work correctly for `npx expo prebuild` & EAS Build (eg: updated a module plugin). - [x] Conforms with the [Documentation Writing Style Guide](https://github.com/expo/expo/blob/main/guides/Expo%20Documentation%20Writing%20Style%20Guide.md) --------- Co-authored-by: Aman Mittal <amandeepmittal@live.com>
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