👋 Hi there, I'm Daniel!

🎯 Android Developer | Kotlin-focused | Building & Sharing What I Learn

I’m a passionate Android developer from Taiwan, focused on building high-quality, maintainable mobile applications. With years of experience in Android development, I specialize in clean architecture, efficient UI design, and robust backend integrations. I'm always exploring new technologies and enjoy sharing what I learn with the community.

🛠 Tech Stack

Languages & Frameworks: Kotlin, Java, Jetpack Compose, Coroutines, RxJava
Architecture: MVVM, MVP, MVI
Tools & Platforms: Android Studio, Firebase, Git, GitHub Actions, Play Console, Google Analytics
Testing & Quality: JUnit, Espresso, MockK, SonarQube, MobSF

🗺️ GIS & Mapping Expertise

I specialize in integrating GIS features into Android apps with practical use of spatial databases and map services. My experience includes:

Google Maps SDK for Android: Custom overlays, dynamic markers, route visualization, and user interaction
Spatialite: Local spatial database integration for offline querying and spatial analysis
WMS / WMTS: Consuming OGC-compliant tile and map services for high-precision raster layers
MBTiles: Supporting offline map tiles with efficient loading and rendering
GeoJSON / KML: Parsing, rendering, and styling vector data for custom layers
Android Location Services: Fused location provider, geofencing, and background tracking

🚀 Open Source Projects

Here are some open-source projects I've built or contributed to:

android-dynamic-app-icon-demo – A sample project demonstrating how to change the app icon dynamically
ismaeldivita/chip-navigation-bar – An android navigation bar widget
sonar-pdf-report plugin – A plugin for exporting SonarQube reports in PDF format