Faiaz Amin Khan

I research and build systems that span the physical-digital divide. From designing patent-grade acoustic sensing mechanism at Samsung R&D to deploying AI workflows in resource contrained device, my work focuses on decoding human signals to create seamless, intelligent interactions.

Overview

An Android app that connects blood donors with recipients. Users post requests, get responses, view nearby hospitals/blood banks, and navigate with Google Maps/Places—all backed by Firebase authentication and realtime data.

Repo: github.com/faiazamin/Donate_plus

Why?

Finding a matching donor quickly is often blocked by fragmented communication and poor location coordination. Donate+ compresses the search: one request fans out to verified responders and surfaces map-ready locations so seekers can act fast.

Problem

  • Hard to match blood group + proximity without a dedicated network.
  • Donor intent drops when requests lack clear status/feedback loops.
  • Seeker workflows are clumsy: collecting info, calling hospitals, and sharing locations happen across different apps.

Approach

  • Request lifecycle: Seekers post with blood group, required date, contact, and pinned map location; responders reply and are tracked in a dedicated list.
  • Contextual UI: News Feed highlights urgent cases; detailed views show maps, contact chips, and response status.
  • Feedback + accountability: Seekers can mark responders as called/enlisted, add notes, and review responses.
  • Location layer: Map picker, GPS shortcuts, and map view for any post, hospital, or blood bank.
  • Notifications stream filtered by the user’s blood group to keep signals relevant.

Key Features

  • Email/password sign-up, login, verification, and password reset.
  • Profile management with blood group, contact details, and last donation date.
  • News Feed of blood requests with urgency highlighting and detailed drill-down.
  • Create/track requests; manage My Posts and My Responses dashboards.
  • Respond to requests and appear in the seeker’s notification/responder list.
  • Hospital & Blood Bank directory with tap-to-call and map view.
  • Map support for address picking or viewing a post’s location.
  • Settings screen with profile updates and logout.

Tech Stack

  • Android (Java), minSdk 19, targetSdk 28.
  • Firebase: Auth, Realtime Database, Analytics.
  • Google Play Services: Maps, Places, Location.
  • UI: AndroidX AppCompat/ConstraintLayout/Material Components, RecyclerView.

My Contributions

  • Defined the end-to-end donor/recipient flow and response tracking model.
  • Built Firebase-backed auth, profile management, and news feed/posting features.
  • Integrated Google Maps/Places for request locations and hospital directory.
  • Shipped dashboards (My Posts/My Responses), blood-group-filtered notifications, and responder status updates.
  • Produced release builds and setup guidance (google-services, map keys, Gradle tasks).

Setup & Run

  • Add google-services.json under app/ and supply a Maps/Places API key in app/src/main/res/values/map_key.xml.
  • Build with ./gradlew clean assembleDebug; install the APK from app/build/outputs/apk/debug/.
  • Requires Android 28 platform tools, JDK 8+, and location permissions on device/emulator.

Impact

  • Creates a single workflow for urgent blood requests with location-aware responses.
  • Improves responder accountability via enlist/called notes and seeker notifications.
  • Delivers a ready-to-install APK (app/release/app-release.apk) for rapid pilot use.

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