A minimal Android ticket manager for storing and displaying QR codes and barcodes. Built for GrapheneOS — no Google Play Services required.

• Import tickets from .pkpass files, images, and PDFs
• Scan barcodes directly with the camera (ML Kit bundled)
• Manual barcode entry
• Tickets grouped by date with swipe-to-delete
• Auto-brightness when viewing a ticket
• Supports QR, PDF417, Aztec, Code 128, Data Matrix, EAN-13, EAN-8

• Android 8.0+ (API 26)
• JDK 17
• Android SDK with compileSdk 35

git clone https://github.com/simon-something/qr-handle.git
cd qr-handle
./gradlew assembleDebug

The APK will be at app/build/outputs/apk/debug/app-debug.apk.

Via ADB:

adb install app/build/outputs/apk/debug/app-debug.apk

If upgrading and you get a signature mismatch error:

adb uninstall com.qrhandle
adb install app/build/outputs/apk/debug/app-debug.apk

• Kotlin + Jetpack Compose (Material 3)
• Room (local database)
• CameraX + ML Kit Barcode Scanning (bundled model)
• ZXing (barcode generation + file-based decoding)
• Navigation Compose