React Native / Expo Android visual test

Interactive, on-device verification of a React Native or Expo Android app — the "did my last change actually render correctly" check. Starts Metro and the native build, runs the app on a device or emulator, captures real screenshots via adb, reads the logs, and gives a concrete verdict.

Covers bare React Native (npx react-native run-android) and Expo (npx expo run:android / dev client). Android only — iOS needs a Mac and xcrun simctl, which is out of scope here.

When to use

• "Test the app / run it on Android / see the visual changes."
• "Did my UI fix work? Does this screen render correctly now?"
• "Compare this screen to the Figma design." (optional Figma add-on)
• Any request for empirical, on-device confirmation of a visual or runtime change — even without the words "screenshot" or "logs".