CloudNest
React Native mobile app for cloud storage and file management built with Expo.
Overview
CloudNest demonstrates mobile-first engineering for iOS and Android using React Native. It showcases how to build a professional mobile application with proper navigation, secure authentication, and responsive design that feels native to each platform.
Problem
Mobile users need seamless file access across devices. Existing solutions either sacrifice UI quality for cross-platform compatibility or require separate iOS and Android development. React Native offers a middle ground if implemented with platform-specific considerations.
Solution
Built a cloud storage interface using React Native with Expo. Implemented platform-aware navigation (native stack on iOS, bottom tabs on Android). Designed touch-optimized interactions and file management workflows that feel native to mobile users.
Key Workflows
- —User authentication with secure token storage
- —File upload from device storage
- —File browsing and organization
- —Download and file preview
- —Real-time sync across devices
Technical Decisions
- —Used Expo for rapid development without needing native code. Avoided ejecting from Expo to maintain simplicity.
- —Implemented platform-specific navigation: native stack navigator for iOS, bottom tab navigator for Android
- —Used secure storage (Expo.SecureStore) for authentication tokens instead of AsyncStorage
- —Built file management with async/await for readable error handling and proper loading states
Performance
Optimized image rendering with proper dimensions for mobile screens. Implemented lazy loading for file lists to prevent memory issues. Used platform-specific storage APIs for efficient file handling.
Accessibility
Ensured touch targets meet 44pt minimum. Implemented proper accessibility labels for all interactive elements. Tested with screen readers to ensure navigation is understandable. Provided haptic feedback for important actions on supporting devices.