A modern, high-performance video playback platform built with Kotlin Multiplatform + Compose Multiplatform, supporting multiple platforms with a clean, extensible architecture.

• ✅ Multi-platform Support: Android, JVM Desktop, Web (JS)
• ✅ DASH Format: Support for separate audio and video streams
• ✅ Platform-native Players: ExoPlayer (Android), HTML5 Video (Web), Common Player (Desktop)
• ✅ Playback Control: Play/pause with async state management

• ✅ Home Recommendations: Async loading with coroutines
• ✅ Hot Ranking: Real-time data with optimized API calls
• ✅ Video Search: Non-blocking operations
• ✅ Adaptive Layout: FlowRow-based responsive design for related videos

• ✅ QR Code Login: Direct Bilibili API integration with real QR code display
• ✅ State Management: Clean, structured state handling

player/
├── bilibiliApi/          # API client layer
├── composeApp/          # UI layer (Compose Multiplatform)
└── shared/              # Shared models and interfaces

• Language: Kotlin Multiplatform with Coroutines
• UI: Compose Multiplatform (Material3)
• Networking: Ktor Client (Async)
• Serialization: Kotlinx Serialization
• Dependency Management: Gradle Version Catalog

• SOLID: Single responsibility, open/closed, interface segregation, dependency inversion
• Dependency Inversion: Clear layered architecture with abstractions
• Non-blocking: All network operations use suspend functions
• Resource Safety: Automatic cleanup with DisposableEffect

• JDK 21+
• Android SDK (for Android builds)

./gradlew :composeApp:assembleRelease

./gradlew :composeApp:run

./gradlew :composeApp:jsBrowserDevelopmentRun

• Video Player: ExoPlayer 3.x with DASH support
• UI: Compose Material3 with adaptive layouts
• APK Size: Optimized with ProGuard and resource shrinking

• Video Player: Common implementation with Compose Desktop
• UI: Material3 design system

• Video Player: HTML5 Video element
• Compatibility: Modern browsers with UTF-8 support

// Multiplatform video player with audio support
expect fun VideoPlayerComponent(
    url: String,
    audioUrl: String? = null,
    isPlaying: Boolean,
    onPlayStateChange: (Boolean) -> Unit
)

• Separate Audio/Video: MergingMediaSource for combined playback
• Progressive Loading: Async stream preparation with ExoPlayer
• Quality Adaptation: Automatic resolution handling

• FlowRow: Responsive grid layout
• Consistent Design: Matches recommendation list appearance
• Optimized Spacing: Proper padding and alignment

• DisposableEffect: Automatic cleanup of coroutines and players
• Image Lazy Loading: Efficient cover image loading
• State Reuse: Optimized state object management

• ProGuard: Code obfuscation and shrinking
• Resource Compression: Reduced APK size
• Dependency Tree: Optimized library dependencies

MIT License - See LICENSE file

A production-ready, multi-platform video playback solution built with modern Kotlin technologies.