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Jordan BeckerandFacebook GitHub Bot
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Summary: Following up my issue https://github.com/facebook/react-native/issues/30377 I decided to have a look myself and contribute. On iOS, border colors using `PlatformColor` or `DynamicColorIOS` do not update on the fly when the system appearance updates. When the component mounts, the color is correct for the current appearance, but a component unmout/remount is required in order to see the color changing after a system appearance change. Fixes https://github.com/facebook/react-native/issues/30377 ## Changelog <!-- Help reviewers and the release process by writing your own changelog entry. For an example, see: https://github.com/facebook/react-native/wiki/Changelog --> [Internal] [Added] - Added `PlatformColor` and `DynamicColorIOS` examples to RNTester Pull Request resolved: https://github.com/facebook/react-native/pull/31140 Test Plan: I added 2 border examples, one using `PlatformColor` and the other using `DynamicColorIOS`. I recorded the following before/after videos showing the effect of my changes: https://user-images.githubusercontent.com/4186230/110828711-9c5dd600-8297-11eb-8bc8-bdc9054b6b44.mov https://user-images.githubusercontent.com/4186230/110828800-b4cdf080-8297-11eb-9d23-07f69dc3a702.mov Reviewed By: lunaleaps Differential Revision: D30073335 Pulled By: charlesbdudley fbshipit-source-id: 2990a6ed40dd08fc2b1f20e93d6f21ec3d8980da