PhotoViewer

A SwiftUI-based iOS app that displays photos from JSONPlaceholder API with smart caching and compression.

Features

• 📱 Browse 5,000 photos in a smooth, scrollable list
• 🔍 View photo details with editable titles
• 💾 Intelligent LRU cache with Brotli compression
• 🚀 Async/await networking with proper error handling
• ⚡ Memory pressure monitoring and auto-cleanup
• ✅ Unit tested cache implementation

Tech Stack

• UI: SwiftUI with NavigationStack
• Architecture: MVVM pattern
• Networking: URLSession with async/await
• Caching: Custom LRU cache with linked list
• Compression: Brotli algorithm for optimal storage
• Concurrency: Swift Concurrency (@Sendable, @MainActor)

Requirements

• Xcode: 15.0+
• iOS: 15.0+

Getting Started

1. Clone the repository
2. Open PhotoViewer.xcodeproj in Xcode
3. Select a simulator or device
4. Run the project (Cmd + R)

Architecture Highlights

• Protocol-driven design for testability and flexibility
• Automatic memory management with cache eviction on memory pressure
• Image compression reduces memory footprint by ~60-80%
• Dependency injection for easy testing and mocking