LightSync

LightSync is a smart utility app that automatically adjusts screen brightness based on ambient light conditions. The app improves user comfort, saves battery life, and reduces eye strain by maintaining optimal screen brightness throughout the day.

Key Features

• Automatic Brightness Control: Implemented intelligent brightness adjustment using device light sensor data to automatically adapt screen brightness to surrounding lighting conditions.
• Custom Brightness Curves: Built configurable brightness response curves allowing users to customize how aggressively the app adjusts brightness based on ambient light levels.
• App-specific Settings: Created per-app brightness profiles enabling different brightness settings for specific apps like reading apps requiring higher brightness.
• Night Mode: Developed dedicated night mode with warm color temperature and reduced brightness for comfortable nighttime use without disrupting sleep.
• Battery Optimization: Implemented efficient sensor reading and background processing to minimize battery drain while maintaining responsive brightness adjustments.
• Quick Settings Tile: Integrated Android quick settings tile for easy on/off toggle and mode switching without opening the app.

Technical Implementation

Built with Flutter using platform channels for Android-specific features:

• Platform channels for accessing Android brightness and sensor APIs
• Background service for continuous brightness monitoring
• Light sensor data processing and smoothing algorithms
• System settings modification with proper permissions
• Efficient battery usage through optimized sensor polling

Challenges & Solutions

Balancing responsiveness with battery efficiency required implementing adaptive sensor polling rates based on detected light changes and user activity patterns.

Working with Android's permission model for system brightness control was solved by providing clear user guidance and implementing proper permission request flows.