Files
EverShelf/docs/wiki/Android-Kiosk.md
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dadaloop82 da4bd635db feat: professional repo cleanup + community infrastructure
- README: remove Recent Updates section, clean roadmap (pending only),
  replace Screenshots with demo link, add 6 new badges (stars, last
  commit, contributors, discussions, CI), invite GIF contributions
- CHANGELOG: translate all Italian entries to English, add v1.7.13
  (DB fresh-install crash fix)
- database.php: add missing 'undone' column to transactions schema;
  wrap ALTER TABLE calls in try/catch to prevent race-condition errors
  on concurrent first requests
- Wiki: Android-Kiosk v1.5.0 → v1.6.0, Step 5 rewritten (BLE scan,
  no external APK), removed gateway troubleshooting section
- Wiki: Scale-Gateway promoted to deprecated with redirect banner
- Wiki: Home What's New updated to v1.7.12 / v1.7.13
- Wiki: Features.md, kiosk README Italian UI strings translated
- .github: add bug_report.yml, feature_request.yml issue templates,
  config.yml (blank issues off, links to FAQ/Discussions/Security),
  PULL_REQUEST_TEMPLATE.md with checklist
- .github: FUNDING.yml (Ko-fi), dependabot.yml (monthly action updates)
- .github/workflows/security.yml: Trivy docker + fs scan, SARIF upload
- .github/workflows/build-scale-gateway.yml: disabled (deprecated)
- SECURITY.md: responsible disclosure policy, supported versions, scope
- CODE_OF_CONDUCT.md: Contributor Covenant 2.1
- Settings UI: About section with version display, Report Bug button,
  Changelog and GitHub links; reportBugManual() + _loadAboutSection()
- Translations: added 'about' key group (9 keys × 3 languages)
2026-05-16 06:02:18 +00:00

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Markdown

# 📺 Android Kiosk App
The EverShelf Kiosk app turns any Android tablet into a dedicated, locked-down kitchen display running EverShelf full-screen.
---
## Download
**[⬇ Download latest APK](https://github.com/dadaloop82/EverShelf/releases/latest/download/evershelf-kiosk.apk)**
> Current version: **v1.6.0** — requires Android 7.0+
---
## What it does
- Displays the EverShelf web app in a **full-screen WebView** (no browser chrome)
- **Locks the screen** with Android's `startLockTask` — home, recents, and back buttons are blocked
- Runs the **built-in BLE scale gateway** as an integrated foreground service — no external app required
- Provides a **native TTS bridge** so Cooking Mode reads steps aloud via Android TextToSpeech
- Auto-detects your EverShelf server on the LAN with a **smart discovery scanner**
- Reports errors and install failures back to the developer automatically
---
## Setup Wizard (6 steps)
The wizard runs automatically on first launch.
### Step 1 — Language
Select the app and web interface language (Italian, English, German).
### Step 2 — Welcome
Overview of what the wizard will configure.
### Step 3 — Permissions
Grant camera, microphone, and storage permissions needed by the web app.
The button transforms from "Concedi permessi" to **"✅ Permessi concessi — Continua →"** (green) once all permissions are granted.
### Step 4 — Server URL
Enter your EverShelf server URL (e.g. `https://192.168.1.100/dispensa`).
**Or tap "Rileva automaticamente"** to let the wizard scan your LAN:
- 60 parallel threads, TCP pre-check, ports 80/443/8080/8443
- Only scans your actual Wi-Fi/Ethernet subnet (VPN and cellular interfaces ignored)
- Real-time feedback as hosts are tested
### Step 5 — Smart Scale
If you have a Bluetooth LE smart scale, configure it here:
1. Tap **"Yes, I have a scale"** — the app scans for nearby BLE devices
2. Tap your scale in the list (devices most likely to be scales are marked with ⭐)
3. On selection, the app automatically writes `scale_enabled=true` and `scale_gateway_url=ws://127.0.0.1:8765` to your EverShelf server
The BLE gateway runs as a built-in foreground service — **no external APK needed**.
### Step 6 — Screensaver
Choose whether the screen should go dark after inactivity.
### Summary
All done — the web app loads in full-screen kiosk mode.
---
## Exiting Kiosk Mode
Tap the **✕** button in the header (top-left). A confirmation dialog appears.
---
## Hard Refresh
Tap the **↻** button in the header to clear the WebView cache and reload the latest version of the web app.
---
## Update Notifications
Every 6 hours the app checks GitHub releases. If a newer version is available, a banner appears with a one-tap download and install flow.
---
## Native TTS Bridge
When Cooking Mode reads recipe steps, the kiosk app:
1. Intercepts the TTS call from the web app via a JavaScript bridge
2. Uses the Android `TextToSpeech` engine directly
3. Falls back to the browser Web Speech API if the bridge is unavailable
No internet connection required for TTS. No extra voice packs to install.
---
## SSL / Self-signed Certificates
The WebView accepts self-signed certificates automatically. No configuration needed for local HTTPS servers.
---
## Troubleshooting
### "Server non trovato" during auto-discovery
- Make sure your tablet and server are on the same Wi-Fi network
- Ensure the server is not on a VPN-only interface
- Try entering the URL manually
### Screen pinning / back button not working
- Screen pinning requires the app to be set as Device Owner or the user to confirm the pin prompt
- Some Android skins (Samsung, Xiaomi) may require additional accessibility permissions
### App crashes on startup
- Force-stop the app, clear its data (Settings → Apps → EverShelf Kiosk → Clear data), and relaunch
---
## Building from Source
```bash
cd evershelf-kiosk
./gradlew assembleRelease
# APK: app/build/outputs/apk/release/app-release.apk
```
Requires Android Studio or JDK 17+ with the Android SDK.
---
## Permissions
| Permission | Purpose |
|-----------|---------|
| `INTERNET` | Load the EverShelf web app |
| `CAMERA` | Barcode scanning and AI photo identification |
| `RECORD_AUDIO` | Voice input in AI chat |
| `WAKE_LOCK` | Keep the screen on |
| `REQUEST_INSTALL_PACKAGES` | Install the Scale Gateway APK |
| `ACCESS_WIFI_STATE` | LAN auto-discovery |
| `REORDER_TASKS` | Bring app to foreground after gateway launch |