16 posts tagged with "Expo"

FlatList is fast when each row is cheap, keys are stable, virtualization is tuned for the screen, and the data layer avoids unnecessary re-renders. It becomes slow when rows contain heavy images, anonymous render functions, unstable item references, eager API calls, and too many mounted views. This guide focuses on practical fixes you can apply to production feeds, chats, catalogs, and marketplace screens.

Continuous integration for React Native should do more than run npm test. A useful pipeline protects every pull request, builds signed release artifacts from clean commits, keeps secrets out of the repository, and makes app store submission repeatable.

In this tutorial, we will explore 10 essential developer tools for efficient React Native development. React Native is a popular framework for building mobile applications using JavaScript and React. These tools will help you streamline your development process, debug and test your applications, and improve overall productivity.

Biometric authentication can make a React Native app feel faster and safer, but it should be designed as a local unlock step, not as a replacement for your account system. The device verifies the enrolled fingerprint or face; your app decides what to unlock after that verification succeeds.

Expo's expo-local-authentication package gives React Native apps access to Face ID, Touch ID, Android Biometric Prompt, and device passcode fallback.