🛒 Blinkit Clone - User App

An Android app that replicates the user-side of the Blinkit grocery delivery platform — fully functional and built using Kotlin and Firebase. This app enables users to browse items, search, filter by category, add to cart, place orders, track them in real-time, and view past orders — all in a seamless experience.

🚀 Features

• 🔐 User Authentication – Secure login/signup using Firebase Auth
• 🗂️ Category Filtering – Browse items by categories
• 🔍 Product Search – Real-time keyword search
• 🛒 Cart System – Add, update, and remove items from the cart
• 📦 Order Placement – Place orders and sync them to Firebase
• 📍 Order Tracking – Track order status updates live
• 🧾 Order History – View past orders and their statuses
• 💳 PhonePe Payment Integration – Simulated UPI-based payments
• 🖼️ Product Images – Uploaded and displayed via Firebase Storage
• ✨ Shimmer Loading Effect – Smooth loading UI transitions
• 🌙 Dark Mode Support – Fully responsive UI in light/dark themes
• ☁️ Firebase Realtime DB – Instant data sync and retrieval

📷 Screenshots

⚙️ Built With

• Kotlin
• Firebase (Auth, Realtime Database, Storage)
• XML-based UI
• MVVM Architecture
• Glide (for image loading)
• PhonePe SDK (Simulated)

📚 What I Learned

• Firebase setup and deep integration
• User session handling and authentication flow
• Real-time product sync and CRUD in Firebase
• Cart logic, order flows, and state management
• Image uploads to and downloads from Firebase Storage
• Payment logic with UPI simulation
• Creating shimmer effects for loading states
• Clean architecture patterns with MVVM and LiveData
• Adaptive UI with dark mode support

🛠️ Topics Covered

• Kotlin Android Development
• Firebase Auth & Realtime DB
• MVVM Architecture
• LiveData & ViewModel
• RecyclerView Adapter Patterns
• Firebase Storage Integration
• Cart Management & Quantity Handling
• Shimmer UI Effect
• Order Tracking System
• Order History View
• UPI/PhonePe Payment Flow (Simulated)
• ConstraintLayout XML Design
• Navigation & Intents
• Glide Image Loading
• Gradle Kotlin DSL
• GitHub Project Management
• XML UI Optimization
• Secure Firebase Rules
• Adaptive Dark Mode Support
• Dependency Injection (basic level)

🔮 Future Enhancements

• 📍 Add address selection with Google Maps
• 🔔 Push notifications for order updates
• 💬 Integrate user chat support
• 📊 Admin analytics dashboard sync

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👩‍💻 Built with ❤️ by @Nikki1930
This app is a passion project aimed at mastering Android development using real-world use cases.