docs: update README to reflect current codebase and settings

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2026-06-13 23:23:12 +02:00
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@@ -8,14 +8,14 @@ Schnappix is a tablet-optimized Photobooth application built with React Native a
- **Multiple Photos & Collages**: Capture single or multiple photos and review them in a generated collage.
- **Sticker / Emoji Editor**: Add emojis, date/time stamps, and event text as draggable, resizable, rotatable stickers on your photos — just like on social media.
- **Photo Frames**: Overlay transparent PNG frames on photos. Admin can set frames to off, always-on, or user-selectable.
- **Continuous Shooting (Burst Mode)**: Automatically capture multiple photos in sequence (25 shots, configurable interval) for collage printing.
- **Continuous Shooting (Burst Mode)**: Automatically capture multiple photos in sequence (15 shots, configurable interval) for collage printing.
- **Date/Time Overlay**: Optionally stamp the date and/or time on every photo, with configurable position.
- **Camera Flash Effect**: Full-screen white flash animation on every capture for an authentic photo booth feel.
- **Direct Printing**: Built-in support for IPP (Internet Printing Protocol) network printers to instantly print captured moments.
- **Kiosk Mode**: Custom native Android implementation to lock the tablet down to the Schnappix app, preventing users from exiting the photobooth.
- **USB Camera Support**: Extends standard camera capabilities to support external USB cameras for higher quality photos.
- **USB & Front Camera Support**: Extends standard camera capabilities to support external USB cameras or standard device front/rear cameras, toggleable in settings.
- **Admin Dashboard**: Secure administrative screen (protected by an admin password) to configure all settings on the fly.
- **Offline Storage**: Saves captured photos directly to the device's local storage and gallery.
- **Offline Storage (MediaStore API)**: Saves captured photos directly to the device's local gallery (`Schnappix - <EventName> - Collagen` and `Schnappix - <EventName> - Originale`).
## Tech Stack
@@ -29,7 +29,7 @@ Schnappix is a tablet-optimized Photobooth application built with React Native a
- `react-native-gesture-handler`: Sticker drag, pinch, and rotate gestures
- `@fortawesome/react-native-fontawesome`: All in-app icons via Font Awesome
- `react-native-svg`: SVG rendering for icon support
- Custom native Expo plugins (`withKioskAdmin`, `withUsbCamera`, `withSettingsRepositories`) for extended Android capabilities.
- Custom native Expo plugins (`withKioskAdmin`, `withUsbCamera`, `withLocalAars`) for extended Android capabilities.
## Getting Started
@@ -63,30 +63,14 @@ Schnappix is a tablet-optimized Photobooth application built with React Native a
npm run android
```
## Project Structure
## Development & Build Rules
```text
Schnappix/
├── App.tsx # Main entry point, navigation, GestureHandlerRootView
├── Icon.png # App icon (neon synthwave photo booth)
├── app.json # Expo configuration and plugin registration
├── assets/
│ └── frames/ # Photo frame PNG overlays (user-provided)
├── plugins/ # Custom Expo config plugins for Android features
├── modules/ # Custom native modules (kiosk-mode, usb-camera)
└── src/
├── components/ # Reusable UI components
│ ├── Icon.tsx # Font Awesome icon wrapper
│ ├── DraggableSticker.tsx # Gesture-based sticker (pan, pinch, rotate)
│ ├── StickerTray.tsx # Emoji/sticker picker tray
│ ├── FrameOverlay.tsx # Frame PNG overlay renderer
│ └── FramePicker.tsx # Frame selection UI
├── data/
│ └── frames.ts # Frame asset registry
├── screens/ # UI Screens (Camera, Preview, Admin)
├── services/ # Core logic (printer.ts, settings.ts, storage.ts)
└── styles/ # Global theme (neon synthwave palette)
```
Schnappix follows strict architecture and workflow rules:
1. **Versioning**: Versioning format is `23.01.X`, where `X` matches the `versionCode` in `app.json`.
2. **Build Outputs**: Apps must always be built as BOTH `.apk` and `.aab`. Naming syntax is `Schnappix_v23.01.X.apk` and `Schnappix_v23.01.X.aab`.
3. **Package Name**: Must strictly remain `de.orfel.schnappix`.
4. **Git Workflow**: Always commit and push at the end of interactions (`git add .`, `git commit`, `git push`). Retry `git push` if it fails due to authentication errors.
## Configuration
@@ -96,23 +80,25 @@ When the app is first launched, you can access the **Admin Dashboard** by tappin
| Setting | Description | Default |
|---|---|---|
| **Drucker IP-Adresse** | Local IP of the Canon CP1300 printer | `192.168.1.100` |
| **Drucker IP-Adresse** | Local IP of the IPP printer (e.g., Canon CP1300) | `192.168.1.100` |
| **Countdown-Dauer** | Seconds before photo capture | `3` |
| **Admin-Passwort** | PIN to access admin panel | `1234` |
| **Begrüßungstext** | Welcome text on the home screen | `Willkommen zu unserer Feier!` |
| **Event-Name** | Event text for the date sticker (e.g. `Jannik's Party`) | _(empty)_ |
| **Serienbild-Anzahl** | Number of photos per burst (1 = single shot) | `1` |
| **Begrüßungstext** | Welcome text on the home screen | `Zeit für ein Erinnerungsfoto!` |
| **Footer-Text** | Footer text on the home screen | `Display tippen! • Lächeln! • Foto schnappen!` |
| **Event-Name** | Event text for the date sticker & generated folder names | _(empty)_ |
| **Serienbild-Anzahl** | Number of photos per burst (1 = single shot, 2-5 = burst) | `1` |
| **Serienbild-Abstand** | Seconds between burst shots | `5` |
| **Fotorahmen-Modus** | `Aus` / `Immer an` / `Verfügbar` | `Aus` |
| **Fotorahmen-Modus** | `Aus` / `Immer an` / `Verfügbar` | `Verfügbar` |
| **Datum-Einblendung** | `Aus` / `Nur Datum` / `Datum + Uhrzeit` | `Aus` |
| **Datum-Position** | Placement of the auto date stamp | `Unten rechts` |
| **Kiosk-Modus** | Lock the tablet to the Schnappix app | `Aus` |
| **Frontkamera nutzen** | Toggles between front and rear/USB camera | `Aus` |
| **Logs aktivieren** | Enables detailed app logging | `An` |
---
## Kiosk Mode (Device Owner) Setup
To use the **true Kiosk Mode** (Lock Task Mode) without system confirmation prompts, the Schnappix app must be set as the Android "Device Owner". This requires connecting the tablet to a PC via USB and using `adb`.
To use the **true Kiosk Mode** (Lock Task Mode) without system confirmation prompts, the Schnappix app must be set as the Android "Device Owner". It does NOT use external MDM software.
**Prerequisites:**
1. The Android tablet must have no other accounts (like a Google Account) configured. It is highly recommended to start with a factory-reset device.
@@ -132,6 +118,17 @@ If successful, the terminal will output `Success: Device owner set to package de
---
## Photo Saving (MediaStore API)
Schnappix uses modern Android MediaStore API (`writeOnly = true` via `expo-media-library`) to save photos directly to the gallery, avoiding legacy file permission prompts.
Photos are neatly organized into two directories based on your configured `Event-Name`:
- `Schnappix - <EventName> - Collagen`
- `Schnappix - <EventName> - Originale`
*Note: Do NOT attempt to force legacy `WRITE_EXTERNAL_STORAGE` or `READ_EXTERNAL_STORAGE` on Android 13+, as it will fail.*
---
## Photo Frames — Setup Guide
Schnappix supports custom photo frame overlays. Frames are transparent PNG images that are layered on top of photos before saving or printing.
@@ -141,68 +138,22 @@ Schnappix supports custom photo frame overlays. Frames are transparent PNG image
| Property | Requirement |
|---|---|
| **Format** | PNG with **alpha channel** (transparency) |
| **Resolution** | **1500 × 1000 px** (3:2 landscape ratio, matches landscape tablet display and print output) |
| **Color mode** | sRGB, 8-bit |
| **Resolution** | **1500 × 1000 px** (3:2 landscape ratio, matches tablet display and print output) |
| **Transparency** | The photo area **must be fully transparent** (alpha = 0) |
| **Safe zone** | Keep transparent "window" at least **60 px** inset from edges |
| **File size** | Keep each file under **500 KB** for fast rendering |
| **Naming** | `frame_<name>.png` (e.g. `frame_balloons.png`, `frame_neon.png`) |
### Frame Layout Example
```
┌──────────────────────────┐
│ 🎈🎈 🎈🎈 │ ← Decorative artwork (opaque pixels)
│ │
│ ┌──────────────────┐ │
│ │ │ │
│ │ TRANSPARENT │ │ ← Photo shows through here (alpha = 0)
│ │ (alpha=0) │ │
│ │ │ │
│ └──────────────────┘ │
│ │
│ ★ EVENT NAME ★ │ ← Bottom text / artwork (opaque pixels)
└──────────────────────────┘
1500 × 1000 px
```
| **Naming** | `frame_<name>.png` (e.g. `frame_balloons.png`) |
### How to Add Frames
1. **Create your frame PNG** according to the specifications above. Use any image editor (Photoshop, GIMP, Figma, Canva) that supports transparency export.
2. **Place the file** in the `assets/frames/` directory:
```
assets/frames/frame_balloons.png
assets/frames/frame_party_name.png
assets/frames/frame_neon.png
```
3. **Register the frame** in `src/data/frames.ts`:
1. **Place the file** in the `assets/frames/` directory.
2. **Register the frame** in `src/data/frames.ts`:
```typescript
export const FRAMES: FrameDefinition[] = [
{ id: 'balloons', name: 'Luftballons', asset: require('../../assets/frames/frame_balloons.png') },
{ id: 'party_name', name: 'Party Name', asset: require('../../assets/frames/frame_party_name.png') },
{ id: 'neon', name: 'Neon Glow', asset: require('../../assets/frames/frame_neon.png') },
];
```
4. **Rebuild the app** (asset changes require a rebuild):
```bash
npx expo prebuild --clean --platform android
npm run android
```
5. **Select the frame mode** in the Admin Dashboard:
- **Aus** — No frames
- **Immer an** — A specific frame is always applied (admin picks which one)
- **Verfügbar** — Guests can choose a frame from the picker in the preview screen
### Tips for Designing Frames
- **Test at print size**: The Canon CP1300 prints at 6×4 inches (roughly 1500×1000 px at 250+ DPI). Make sure your frame elements are sharp at this resolution.
- **Leave enough transparent space**: Guests' faces should not be covered. Keep decorative elements on edges and corners.
- **Use subtle borders**: A thin border or vignette effect around the transparent window helps frames look polished.
- **Match the event**: Create themed frames for weddings, birthdays, corporate events, etc.
3. **Rebuild the app** (`npx expo prebuild --clean --platform android` & `npm run android`).
4. **Select the frame mode** in the Admin Dashboard.
---
@@ -210,13 +161,10 @@ Schnappix supports custom photo frame overlays. Frames are transparent PNG image
The preview screen includes a social-media-style sticker editor. Guests can:
- **Add emojis**: Tap the "Sticker" button to open the emoji tray with 30 curated party emojis
- **Drag** stickers anywhere on the photo
- **Pinch to resize** stickers
- **Two-finger rotate** stickers
- **Tap to select**, then press × to delete
- **Add date/time stickers**: Always available — tap "Datum" or "Datum + Uhrzeit" in the tray
- **Add event sticker**: Shows event name + date (if configured in admin)
- **Add emojis**: Tap the "Sticker" button to open the emoji tray with curated party emojis.
- **Transform**: Drag stickers anywhere, pinch to resize, and two-finger rotate.
- **Delete**: Tap to select, then press × to delete.
- **Dynamic Stickers**: Date, Time, and Event text automatically generate based on your Admin settings.
All stickers are rendered inside the capture area, so they appear in the saved and printed output.