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When React Navigation v6 resets to the root screen on restart, the persistence layer is likely misconfigured. This guide walks through common causes, a step‑by‑step diagnostic checklist, targeted fixes, and escalation paths to help you restore navigation state reliably.
Screen opens but route.params is undefined after push or replace? Check the param object, key names, deep link config, navigator version, and re-render resets in order.
A flat navigator resets history when users switch tabs. Learn how to nest a stack navigator inside a tab navigator in React Navigation 6.x so each tab keeps its own state.
Expo Router's real advantage isn't the folder convention — it's that static route analysis turns your route table into a build-time artifact that drives deep links, typed params, and bundle splitting.
Hermes compiles JavaScript to bytecode ahead of time, cutting React Native startup and memory. Here is how to enable it, verify it is active, and know when it will break your app.
When a deep link fails in a React Navigation v6 app, the issue often lies in OS‑level scheme registration, linking configuration, or initial URL handling. This guide walks through a diagnostic table, ordered checks, and concrete fixes to get your URLs working reliably on iOS and Android.
ScrollView with .map() mounts every item instantly — killing performance on long lists. FlatList virtualizes, recycles, and stays fast. Here's the practical prop configuration that makes it work, a 5,000-row before/after example, and the trade-offs you'll hit with dynamic heights or FlashList.
React Navigation v6's TypeScript param lists turn route names and params into compile-time contracts. Here's how to set them up, compose nested navigators, and know where the safety ends.
Learn how to replace Expo Go with a custom development client that supports any native library, using config plugins and EAS builds.
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