标签：#Android

Most QR scanner libraries for React Native share the same problems — they're unmaintained, they don't support the New Architecture, or they pull in a full camera SDK for what is a single-feature module. I wanted something lean, production-grade, and built the right way. So I built it. This is react-native-qr-camera-pro — a QR and barcode scanner for React Native built entirely with native code. No JavaScript frame processing. No unnecessary dependencies. Swift on iOS, Kotlin on Android, TurboModules and Fabric throughout. Why Native-Only? The common alternative is running frame analysis in JavaScript — grabbing frames via a JS-accessible camera API and running a WASM or JS barcode decoder on them. It works, but it puts real pressure on the JS thread and limits your frame rate. With native-only processing: iOS uses AVCaptureMetadataOutput — Apple's own pipeline for detecting machine-readable codes. Frames are never copied to user space; the kernel hands off a reference to the same buffer. Android uses CameraX ImageAnalysis + ML Kit — Google's on-device barcode scanner backed by hardware-accelerated inference where available. The JS bridge is touched at most once every 500ms to deliver a result. Everything else stays native. Architecture The module is three layers: Architecture The module is three layers, each with a single responsibility: Layer What it does JavaScript / TypeScript Public API — QrCameraProView , startScanning() , stopScanning() , toggleTorch() , useBarcodeScanner() , useCameraError() Native Bridge (TurboModules + Fabric) Type-safe JSI communication between JS and native. Codegen spec drives both the iOS C++ adapter and the Android Kotlin stub. Native Platform (iOS + Android) All camera and barcode logic. AVFoundation on iOS, CameraX + ML Kit on Android. Zero JS involvement in frame processing. iOS (Swift) Class Responsibility QrCameraProSwift Owns the AVCaptureSession lifecycle BarcodeThrottler Throttle + dedup logic BarcodeTypeMapper Maps AVMetadataO

If you’ve been doing Android development for a while, you know the drill. You start a new project,...

Motorola says that recently discovered behavior, which saw some of its phones sending users to an affiliate tracking website before opening the Amazon app, was "unintended" and has been "promptly corrected." The company didn't explain how the error was introduced in the first place. "Recently, Motorola acted quickly to resolve an issue that was identified, […]