A Modern File Manager for BlackBerry 10 (Android 4.3 / API 18)

BlackFiles is a full-featured, production-grade file manager designed specifically for BlackBerry 10 devices running the Android 4.3 runtime. Inspired by GNOME Nautilus, it offers a classic, keyboard-driven interface, robust local and remote file operations, and seamless support for legacy hardware.

• Classic UI: DrawerLayout navigation, ListView file browser, and toolbar with breadcrumbs
• Full QWERTY Keyboard Navigation: All major file actions mapped to physical keys (see Hotkey Table)
• Local & Remote File Management:
  • Internal storage & SD card
  • SFTP, SCP, FTP, FTPS, WebDAV, SMB (see Protocol Table)
• Background File Operations: Copy, move, delete, rename, and new folder with progress dialogs
• Favorites & Sorting: Add favorites, sort by name/date/size/type, toggle hidden files
• Robust Preferences: All settings and connections stored in SharedPreferences (no cloud dependency)
• BB10-Optimized: 1:1 aspect ratio, Holo theme, no AndroidX, no Material, no Jetpack Compose

Requirements:

• JDK 7 (Java 1.7)
• Android SDK Platform 18 (Android 4.3)
• Gradle 2.14.1 (use the included ./gradlew wrapper)
• No AndroidX, no Jetpack, no Material Components

To build:

./gradlew clean assembleDebug

APK output:

• app/build/outputs/apk/debug/app-debug.apk

To install on device:

• Use adb install or sideload via BlackBerry 10 developer tools

• app/src/main/java/com/blacfiles/filemanager/ — All Java sources
• app/src/main/res/ — Layouts, drawables, values
• .agents/ — Protocol, keyboard, and sorting documentation for agent collaboration
• AGENTS.md — Full architecture, constraints, and agent session checklist

• Legacy Support: The only modern file manager built for BlackBerry 10’s Android runtime in 2026
• No Modern Android Dependencies: 100% compatible with API 18, Java 7, and BB10 hardware quirks
• Agent-Ready: Institutional knowledge and architecture docs for AI agent collaboration

BlackFiles is released under the MIT License.