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Chetan Gaikwad
Android Geek | 1x Fo... • 1d
🚀 Built a Production-Ready Document Scanner for Android using Google ML Kit — in Just 2 Days! Just shipped a fully functional document scanner in our Android health records app — and I’m amazed at how powerful Google ML Kit’s Document Scanner API is. ✅ Multi-page PDF scanning ✅ Auto edge detection & perspective correction ✅ Works seamlessly on Android 9–14 ✅ On-device processing (perfect for privacy-critical apps) No CameraX or OpenCV complexity — ML Kit handles it all. ⸻ 🧩 The Challenge Our users needed to scan prescriptions and lab reports directly from their phones and attach them to health records. Requirements? On-device scanning, multi-page PDFs, persistent storage, and privacy compliance. ⸻ 💡 The Solution After evaluating multiple approaches, I went with Google ML Kit’s Document Scanner API. It cut down weeks of custom camera engineering and still delivered professional-grade results. ⸻ 🔍 Key Learnings for Android Devs 1️⃣ ML Kit’s Document Scanner API automates the tough parts — camera handling, edge detection, and PDF generation. 2️⃣ Pay extra attention to MediaStore when handling storage on Android 10+. 3️⃣ Good UX (like rename dialogs + file previews) makes a huge difference. 4️⃣ Everything happens on-device, meeting privacy and security standards for medical data. ⸻ ⚙️ Tech Stack • Kotlin + Jetpack Compose • ML Kit Document Scanner API • MediaStore (for Android 10+ storage) • PdfRenderer for page preview & validation ⸻ ⏱ From concept to production in just 2 days. I’ve written a detailed guide covering setup, code snippets, and common pitfalls 👇 📖 Read the full article: 👉 https://gaikwadchetan93.medium.com/building-a-production-ready-document-scanner-in-android-with-google-ml-kit-2e76a82b99c5 ⸻ 👩💻 Have you implemented a document scanner in your Android app? Would love to hear your approach or any gotchas you’ve faced! #AndroidDevelopment #Kotlin #MLKit #MobileDevelopment #DocumentScanner #MachineLearning #AppDevelopment #GoogleMLKit #AndroidDev #JetpackCompose
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