Let It Up is an immersive Android application designed to transform the concert-going experience. By synchronizing device hardware (flash and screen brightness) with real-time lyrics, it creates a unified crowd-interaction platform that bridges the gap between performer and audience.

Splash Screen

Login

Navigation

Song Selection

Lyrics & Flash

• 🔄 Synchronized Flash & Lyrics: Real-time lyric fetching and display synchronized with rhythmic camera flash pulses.
• 🔆 Dynamic Brightness Control: Automatically modulates screen brightness and colors to match the concert atmosphere.
• 🤝 Crowd Interaction: Encourages mass participation, allowing entire audiences to sync their devices for collective visual effects.
• 🔐 Secure Authentication: Integrated Firebase Phone Authentication for seamless and secure user onboarding.

• Networking: Retrofit 2 with GSON converter for type-safe API consumption.
• Backend: Firebase (Realtime Database, Storage, and Authentication).
• Image Loading: Picasso for efficient remote image caching and display.
• Lyrics Engine: MusixMatch API integration.

• Architecture: Follows clean Android principles with a focus on UI/UX responsiveness.
• Design Patterns: Extensively uses the Adapter Pattern for flexible list management.
• Concurrency: Managed via Handler, Runnable, and AsyncTask for smooth hardware interactions without blocking the Main UI Thread.

• Android 4.0 (API Level 14) or higher.
• Device with a functional Camera Flash.
• Write Settings permission (for Brightness Control).

1. Clone the Repository

   git clone https://github.com/liwaakal/Let-It-Up.git

2. Open in Android Studio Import the project and sync the Gradle files.
3. Firebase Configuration Add your google-services.json to the app/ directory.
4. API Keys Add your MusixMatch API key in the LyricsAndFlashActivity.java.
5. Build & Run Deploy to your physical device or emulator.

1. Login: Verify your phone number to enter the platform.
2. Pick a Song: Select from a curated list or search for your favorite track.
3. Sync: The app will automatically fetch lyrics and begin the flash synchronization.
4. Adjust: Use the brightness control module to fine-tune your device's visual output.

Developed with ❤️ as a final project for Advanced Android Development.