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afaan13/README.md

Zubair — Android Developer

Kotlin Jetpack Compose Flutter


About

MCS graduate from Kashmir University building native Android applications. Currently focused on shipping functional apps while deepening my understanding of Kotlin, Jetpack Compose, and Android architecture patterns.

Tech Stack: Kotlin · Jetpack Compose · Flutter · Firebase · Room Database · SQLite


Shipped Projects

📋 Attendance Tracker Available on Google Playstore.

Offline-first attendance management for teachers. Mark attendance, sync across devices via Firebase, generate PDF reports, share school workspace with colleagues using invite codes.

Tech: Kotlin, Jetpack Compose, Firebase (Auth + Firestore), Room DB for offline storage, PDF generation

Key Challenge: Real-time multi-user sync without conflicts when multiple teachers mark attendance simultaneously.


📱 NotchX Available on Google Playstore.

NotchX turns your phone's front camera cutout (notch/punch-hole) into a touch-sensitive control center. By detecting various gestures directly on and around the camera cutout, NotchX executes customized system actions, shortcuts, and overlays instantly—saving you time and making single-handed phone usage effortless.


Privacy suite disguised as a calculator. Locks apps, encrypts photos/videos with AES-256, captures intruder selfies on wrong PIN attempts.

Tech: Kotlin, Jetpack Compose, Room DB, Accessibility Service for app blocking, encrypted SharedPreferences

Key Challenge: Building a reliable app-blocking mechanism using AccessibilityService while handling Android's aggressive background process killing.


Mission-based alarm app that requires completing tasks (math problems, QR scanning, step counting, voice phrases) to dismiss. Built to solve the "snooze loop" problem for heavy sleepers.

Tech: Flutter, Kotlin (native layer for system-level alarm management), SQLite, full-screen intents for lockscreen overlay

Key Challenge: Ensuring alarm fires reliably across Android power management modes (Doze, App Standby) using WorkManager + AlarmManager hybrid approach.


🛡️ VaultGuard

Offline-first Android app locker and privacy suite. Secures apps using clock-synced dynamic PINs and trusted Wi-Fi/GPS safe zones, featuring a unique Doomscroll Guard that curbs screen addiction with focus-restoring exercises.

Tech: Kotlin, Jetpack Compose, Room (SQLCipher), Preferences DataStore, AccessibilityService, WindowManager overlay, Bouncy Castle (Argon2id)

Key Challenge: Achieving sub-150ms overlay interception and sub-1ms configuration lookup via reactive in-memory cache, combined with active settings-ejection mechanisms to block unauthorized uninstallation.


Current Focus

  • Strengthening Kotlin fundamentals and Compose state management
  • Learning Clean Architecture and MVVM patterns through hands-on refactoring
  • Exploring Jetpack libraries: Navigation, WorkManager, DataStore

Connect

LinkedIn Email Portfolio


Jammu & Kashmir, India · Open to remote Android development roles

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