dadaloop82
a5094920bf
- SettingsActivity: replace GATEWAY_PACKAGE / PackageManager check with
GatewayService status; show BLE device name + live :8765 probe;
buttons now restart GatewayService or redirect to setup wizard
- activity_settings.xml: rename section label to 'BILANCIA SMART',
update button text to '⚙️ Configura bilancia'
- evershelf-scale-gateway/README.md: add DEPRECATED notice (gateway is
now integrated into kiosk v1.6.0+, this app is no longer maintained)
- evershelf-kiosk/README.md: full rewrite — reflects v1.6.0, integrated
BLE gateway, 6-step wizard, permissions table, protocol reference
- README.md: update kiosk features (remove gateway APK install/launch,
add integrated BLE service), update scale section, update architecture,
add kiosk v1.6.0 entry in Recent Updates
168 lines
6.4 KiB
Markdown
168 lines
6.4 KiB
Markdown
# EverShelf Kiosk
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Android kiosk app for wall-mounted kitchen tablets. Full-screen WebView wrapper with integrated BLE scale gateway — no external apps required.
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> **Version:** 1.6.0 (versionCode 10)
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> **Package:** `it.dadaloop.evershelf.kiosk`
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> **Min SDK:** Android 7.0 (API 24)
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---
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## Features
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### Kiosk Mode
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- **Full-screen WebView** — immersive mode hides status bar and navigation bar
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- **True kiosk lock** — screen pinning (`startLockTask`) blocks home/recent/back buttons
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- **Exit button (✕)** — visible in header, requires confirmation dialog to exit kiosk
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- **Hard refresh (↻)** — clears WebView cache to pick up web app updates instantly
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- **SSL support** — accepts self-signed certificates for local HTTPS servers
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- **Update notifications** — checks GitHub releases every 6 hours, shows auto-dismiss banner
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- **Native TTS bridge** — cooking mode voice readout uses Android TextToSpeech directly
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- **Settings activity** — change server URL, test connection, re-run setup wizard
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### BLE Scale Gateway (integrated, no external app)
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- **Built-in BLE gateway** — `GatewayService` foreground service handles BLE scanning and connection automatically when a scale is configured
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- **WebSocket server** — exposes scale data on `ws://127.0.0.1:8765`, fully protocol-compatible with the legacy standalone gateway app (no webapp JS changes needed)
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- **Auto-start** — service starts automatically on kiosk launch if a scale device is configured
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- **Auto-reconnect** — reconnects automatically after 8 seconds if the BLE link drops
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- **Multi-protocol** — supports Bluetooth SIG Weight Scale (`0x181D`/`0x2A9D`), Body Composition (`0x181B`/`0x2A9C`), QN/Yolanda scales, and 100+ models via generic fallback heuristic
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### Setup Wizard (6 steps)
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1. **Language** — choose Italian / English / German
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2. **Welcome** — intro and privacy information
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3. **Permissions** — camera, microphone, BLE permissions with in-wizard grant flow
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4. **Server URL** — enter your EverShelf URL; auto-discovery scans the LAN (60 parallel threads, ports 80/443/8080/8443)
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5. **Smart Scale** — optional: scan for BLE scales and select yours from the discovered device list (mandatory before proceeding if you choose "yes")
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6. **Screensaver** — toggle display sleep after inactivity
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---
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## Architecture
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```
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KioskActivity (WebView — full-screen EverShelf)
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├── SetupActivity (6-step wizard, shown on first launch only)
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├── SettingsActivity (URL, scale status, re-run wizard)
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├── Immersive mode (SYSTEM_UI_FLAG_IMMERSIVE_STICKY)
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├── Screen pinning (startLockTask / stopLockTask)
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├── JS bridge (_kioskBridge: exit, hardReload)
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└── GatewayService (foreground service — BLE + WebSocket)
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├── BleScaleManager — BLE scanning, GATT, auto-reconnect
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├── GatewayWebSocketServer — WebSocket server :8765
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└── ScaleProtocol — multi-protocol BLE weight parser
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```
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The kiosk app is fully self-contained. No separate gateway app is required.
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---
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## Setup
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1. Install the **EverShelf Kiosk** APK on your Android tablet
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2. Launch the app — the setup wizard starts automatically
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3. Choose your language
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4. Grant camera, microphone and Bluetooth permissions when prompted
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5. Enter your EverShelf server URL (e.g. `https://192.168.1.100/dispensa`) or use auto-discovery
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6. If you have a Bluetooth scale: tap **"Sì, ho una bilancia"**, wait for the BLE scan, then tap your scale in the list
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7. Done — the web app loads in full-screen kiosk mode
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### Scale Configuration
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BLE scale setup happens inside the kiosk app itself — **no external app needed**:
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- During the **setup wizard (step 5)**, the app scans for nearby BLE scales and shows them in a list. Devices most likely to be scales are marked with ⭐.
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- Tap a device to select it. The selection is saved and the "Next" button becomes enabled.
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- From the **Settings screen**, you can restart the BLE service or reconfigure the scale device.
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### Exiting Kiosk Mode
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Tap the **✕** button in the header. A confirmation dialog appears — tap "Esci" to exit.
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---
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## Permissions
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| Permission | Purpose |
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|---|---|
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| `INTERNET` | Load EverShelf web app |
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| `ACCESS_NETWORK_STATE` | Check connectivity |
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| `ACCESS_WIFI_STATE` | LAN subnet detection for auto-discovery |
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| `WAKE_LOCK` | Keep screen on |
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| `CAMERA` | Barcode scanning, AI photo identification |
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| `RECORD_AUDIO` | Voice input in chat assistant |
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| `READ_MEDIA_IMAGES` / `READ_EXTERNAL_STORAGE` | Image access for AI scan |
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| `REORDER_TASKS` | Bring kiosk to foreground |
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| `BLUETOOTH` / `BLUETOOTH_ADMIN` | BLE (Android ≤ 11) |
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| `BLUETOOTH_SCAN` / `BLUETOOTH_CONNECT` | BLE scan and connect (Android 12+) |
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| `ACCESS_FINE_LOCATION` | Required for BLE scan on Android < 12 |
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| `FOREGROUND_SERVICE` | Run BLE gateway as foreground service |
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| `FOREGROUND_SERVICE_CONNECTED_DEVICE` | Service type for BLE (Android 14+) |
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---
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## Supported Scale Protocols
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| Protocol | Service UUID | Notes |
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|---|---|---|
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| **Bluetooth SIG Weight Scale** | `0x181D` / char `0x2A9D` | Most compatible |
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| **Bluetooth SIG Body Composition** | `0x181B` / char `0x2A9C` | Weight + body fat %, BMI |
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| **QN/Yolanda** | Custom UUIDs | Xiaomi Mi Scale 2, Renpho, etc. |
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| **Generic fallback** | Any notifiable characteristic | Auto-heuristic parsing for 100+ models |
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### Verified compatible scales
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- Xiaomi Mi Body Composition Scale 2
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- Renpho Smart Body Fat Scale
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- INEVIFIT Smart Body Fat Scale
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- Any [openScale-compatible scale](https://github.com/oliexdev/openScale/wiki/Supported-scales)
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---
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## WebSocket Protocol
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The built-in WebSocket server speaks the same protocol as the legacy standalone gateway app — the EverShelf webapp needs no changes.
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**Server → client:**
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```json
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{"type":"status","state":"connected","device":"Mi Scale 2","battery":85}
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{"type":"status","state":"disconnected"}
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{"type":"weight","value":72.50,"unit":"kg","stable":true,"timestamp":1712345678000}
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{"type":"pong"}
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```
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**Client → server:**
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```json
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{"type":"get_status"}
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{"type":"get_weight"}
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{"type":"ping"}
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```
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---
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## Building
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```bash
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cd evershelf-kiosk
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./gradlew assembleDebug
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# APK at app/build/outputs/apk/debug/app-debug.apk
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```
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For release:
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```bash
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./gradlew assembleRelease
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```
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---
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## Requirements
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- Android 7.0+ (API 24)
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- Bluetooth LE support (for scale integration)
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- Network access to EverShelf server
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---
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## License
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MIT — see [LICENSE](../LICENSE)
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