When Metro sits on “waiting for changes” and never actually rebuilds or serves your app, despite you clearly editing files, it usually means Metro’s file watcher isn’t detecting your changes at all — not that your changes are somehow invalid or being rejected. The Problem You start the Metro bundler, it loads once successfully, but…
When a fetch call in React Native works perfectly on iOS but fails on Android, the cause is almost always a platform-specific network policy difference — Android is significantly stricter by default about what kinds of network requests it allows, especially in newer OS and target SDK versions. The Problem Your app calls an API…
An app that runs perfectly in development but crashes only in release builds is one of the most frustrating categories of React Native bugs, precisely because the debug build gives you no warning at all — the crash only appears once you’ve already built and shipped something closer to production. The Problem Your app works…
When data saved with AsyncStorage seems to vanish after restarting a React Native app, the cause is almost always a timing or key-naming issue in how the app reads and writes data — not AsyncStorage itself failing to persist, since it’s designed specifically to survive app restarts. The Problem You save a value with AsyncStorage.setItem,…