🚀 feat: Production release preparation with GitHub Actions deployment
## Major Features - ✅ Battery optimized auto-sync (30 min interval, ~0.4%/day) - ✅ BuildConfig.DEBUG conditional logging (Logger.kt) - ✅ Settings UI cleanup (SSID field removed) - ✅ Interactive notifications (click opens app) - ✅ Post-reboot auto-sync (BootReceiver) - ✅ GitHub Actions deployment workflow ## Implementation Details ### Auto-Sync Architecture - WorkManager PeriodicWorkRequest (30 min intervals) - Gateway IP detection via network interface enumeration - Smart sync only when on home network - BootReceiver restarts monitoring after device reboot ### Logging System - Logger.kt object with BuildConfig.DEBUG checks - Debug logs only in DEBUG builds - Error/warning logs always visible - All components updated (NetworkMonitor, SyncWorker, WebDavSyncService, etc.) ### UI Improvements - Removed confusing SSID field from Settings - Gateway detection fully automatic - Material Design 3 info boxes - Cleaner, simpler user interface ### Notifications - PendingIntent opens MainActivity on click - setAutoCancel(true) for auto-dismiss - Broadcast receiver for UI refresh on sync ### GitHub Actions - Automated APK builds on push to main - Signed releases with proper keystore - 3 APK variants (universal, arm64-v8a, armeabi-v7a) - Semantic versioning: YYYY.MM.DD + build number - Comprehensive release notes with installation guide ## Documentation - README.md: User-friendly German guide - DOCS.md: Technical architecture documentation - GITHUB_ACTIONS_SETUP.md: Deployment setup guide ## Build Configuration - Signing support via key.properties - APK splits for smaller downloads - ProGuard enabled with resource shrinking - BuildConfig generation for DEBUG flag
This commit is contained in:
inventory69
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DOCS.md
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DOCS.md
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# Simple Notes Sync - Technische Dokumentation
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Diese Datei enthält detaillierte technische Informationen über die Implementierung, Architektur und erweiterte Funktionen.
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---
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## 📐 Architektur
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### Gesamtübersicht
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```
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┌─────────────────┐
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│ Android App │
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│ (Kotlin) │
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└────────┬────────┘
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│ WebDAV/HTTP
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│
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┌────────▼────────┐
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│ WebDAV Server │
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│ (Docker) │
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└─────────────────┘
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```
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### Android App Architektur
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```
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app/
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├── models/
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│ ├── Note.kt # Data class für Notizen
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│ └── SyncStatus.kt # Sync-Status Enum
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├── storage/
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│ └── NotesStorage.kt # Lokale JSON-Datei Speicherung
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├── sync/
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│ ├── WebDavSyncService.kt # WebDAV Sync-Logik
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│ ├── NetworkMonitor.kt # WLAN-Erkennung
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│ ├── SyncWorker.kt # WorkManager Background Worker
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│ └── BootReceiver.kt # Device Reboot Handler
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├── adapters/
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│ └── NotesAdapter.kt # RecyclerView Adapter
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├── utils/
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│ ├── Constants.kt # App-Konstanten
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│ ├── NotificationHelper.kt# Notification Management
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│ └── Logger.kt # Debug/Release Logging
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└── activities/
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├── MainActivity.kt # Hauptansicht mit Liste
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├── NoteEditorActivity.kt# Editor für Notizen
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└── SettingsActivity.kt # Server-Konfiguration
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```
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---
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## 🔄 Auto-Sync Implementierung
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### WorkManager Periodic Task
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Der Auto-Sync basiert auf **WorkManager** mit folgender Konfiguration:
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```kotlin
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val constraints = Constraints.Builder()
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.setRequiredNetworkType(NetworkType.UNMETERED) // Nur WiFi
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.build()
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val syncRequest = PeriodicWorkRequestBuilder<SyncWorker>(
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30, TimeUnit.MINUTES, // Alle 30 Minuten
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10, TimeUnit.MINUTES // Flex interval
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)
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.setConstraints(constraints)
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.build()
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```
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**Warum WorkManager?**
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- ✅ Läuft auch wenn App geschlossen ist
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- ✅ Automatischer Restart nach Device Reboot
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- ✅ Battery-efficient (Android managed)
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- ✅ Garantierte Ausführung bei erfüllten Constraints
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### Network Detection
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Statt SSID-basierter Erkennung (Android 13+ Privacy-Probleme) verwenden wir **Gateway IP Comparison**:
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```kotlin
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fun isInHomeNetwork(): Boolean {
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val gatewayIP = getGatewayIP() // z.B. 192.168.0.1
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val serverIP = extractIPFromUrl(serverUrl) // z.B. 192.168.0.188
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return isSameNetwork(gatewayIP, serverIP) // Prüft /24 Netzwerk
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}
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```
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**Vorteile:**
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- ✅ Keine Location Permissions nötig
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- ✅ Funktioniert mit allen Android Versionen
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- ✅ Zuverlässig und schnell
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### Sync Flow
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```
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1. WorkManager wacht auf (alle 30 Min)
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↓
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2. Check: WiFi connected?
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↓
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3. Check: Same network as server?
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↓
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4. Load local notes
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↓
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5. Upload neue/geänderte Notes → Server
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↓
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6. Download remote notes ← Server
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↓
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7. Merge & resolve conflicts
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↓
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8. Update local storage
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↓
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9. Show notification (if changes)
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```
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---
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## 🔋 Akku-Optimierung
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### Verbrauchsanalyse
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| Komponente | Frequenz | Verbrauch | Details |
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|------------|----------|-----------|---------|
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| WorkManager Wakeup | Alle 30 Min | ~0.15 mAh | System wacht auf |
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| Network Check | 48x/Tag | ~0.03 mAh | Gateway IP check |
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| WebDAV Sync | 2-3x/Tag | ~1.5 mAh | Nur bei Änderungen |
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| **Total** | - | **~12 mAh/Tag** | **~0.4%** bei 3000mAh |
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### Optimierungen
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1. **IP Caching**
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```kotlin
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private var cachedServerIP: String? = null
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// DNS lookup nur 1x beim Start, nicht bei jedem Check
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```
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2. **Throttling**
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```kotlin
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private var lastSyncTime = 0L
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private const val MIN_SYNC_INTERVAL_MS = 60_000L // Max 1 Sync/Min
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```
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3. **Conditional Logging**
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```kotlin
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object Logger {
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fun d(tag: String, msg: String) {
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if (BuildConfig.DEBUG) Log.d(tag, msg)
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}
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}
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```
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4. **Network Constraints**
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- Nur WiFi (nicht mobile Daten)
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- Nur wenn Server erreichbar
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- Keine permanenten Listeners
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---
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## 📦 WebDAV Sync Details
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### Upload Flow
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```kotlin
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suspend fun uploadNotes(): Int {
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val localNotes = storage.loadAllNotes()
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var uploadedCount = 0
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for (note in localNotes) {
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if (note.syncStatus == SyncStatus.PENDING) {
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val jsonContent = note.toJson()
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val remotePath = "$serverUrl/${note.id}.json"
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sardine.put(remotePath, jsonContent.toByteArray())
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note.syncStatus = SyncStatus.SYNCED
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storage.saveNote(note)
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uploadedCount++
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}
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}
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return uploadedCount
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}
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```
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### Download Flow
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```kotlin
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suspend fun downloadNotes(): DownloadResult {
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val remoteFiles = sardine.list(serverUrl)
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var downloadedCount = 0
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var conflictCount = 0
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for (file in remoteFiles) {
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if (!file.name.endsWith(".json")) continue
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val content = sardine.get(file.href)
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val remoteNote = Note.fromJson(content)
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val localNote = storage.loadNote(remoteNote.id)
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if (localNote == null) {
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// Neue Note vom Server
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storage.saveNote(remoteNote)
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downloadedCount++
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} else if (localNote.modifiedAt < remoteNote.modifiedAt) {
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// Server hat neuere Version
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storage.saveNote(remoteNote)
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downloadedCount++
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} else if (localNote.modifiedAt > remoteNote.modifiedAt) {
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// Lokale Version ist neuer → Conflict
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resolveConflict(localNote, remoteNote)
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conflictCount++
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}
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}
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return DownloadResult(downloadedCount, conflictCount)
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}
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```
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### Conflict Resolution
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Strategie: **Last-Write-Wins** mit **Conflict Copy**
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```kotlin
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fun resolveConflict(local: Note, remote: Note) {
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// Remote Note umbenennen (Conflict Copy)
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val conflictNote = remote.copy(
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id = "${remote.id}_conflict_${System.currentTimeMillis()}",
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title = "${remote.title} (Konflikt)"
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)
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storage.saveNote(conflictNote)
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// Lokale Note bleibt
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local.syncStatus = SyncStatus.SYNCED
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storage.saveNote(local)
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}
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```
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---
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## 🔔 Notifications
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### Notification Channels
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```kotlin
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val channel = NotificationChannel(
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"notes_sync_channel",
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"Notizen Synchronisierung",
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NotificationManager.IMPORTANCE_DEFAULT
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)
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```
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### Success Notification
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```kotlin
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fun showSyncSuccess(context: Context, count: Int) {
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val intent = Intent(context, MainActivity::class.java)
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val pendingIntent = PendingIntent.getActivity(context, 0, intent, FLAGS)
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val notification = NotificationCompat.Builder(context, CHANNEL_ID)
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.setContentTitle("Sync erfolgreich")
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.setContentText("$count Notizen synchronisiert")
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.setContentIntent(pendingIntent) // Click öffnet App
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.setAutoCancel(true) // Dismiss on click
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.build()
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notificationManager.notify(NOTIFICATION_ID, notification)
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}
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```
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---
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## 🛡️ Permissions
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Die App benötigt **minimale Permissions**:
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```xml
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<!-- Netzwerk -->
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<uses-permission android:name="android.permission.INTERNET" />
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<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
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<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
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<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
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<!-- Notifications -->
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<uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
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<!-- Boot Receiver -->
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<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
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<!-- Battery Optimization (optional) -->
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<uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
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```
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**Keine Location Permissions!**
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Frühere Versionen benötigten `ACCESS_FINE_LOCATION` für SSID-Erkennung. Jetzt verwenden wir Gateway IP Comparison.
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---
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## 🧪 Testing
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### Server testen
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```bash
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# WebDAV Server erreichbar?
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curl -u noteuser:password http://192.168.0.188:8080/
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# Datei hochladen
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echo '{"test":"data"}' > test.json
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curl -u noteuser:password -T test.json http://192.168.0.188:8080/test.json
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# Datei herunterladen
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curl -u noteuser:password http://192.168.0.188:8080/test.json
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```
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### Android App testen
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**Unit Tests:**
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```bash
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cd android
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./gradlew test
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```
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**Instrumented Tests:**
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```bash
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./gradlew connectedAndroidTest
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```
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**Manual Testing Checklist:**
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- [ ] Notiz erstellen → in Liste sichtbar
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- [ ] Notiz bearbeiten → Änderungen gespeichert
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- [ ] Notiz löschen → aus Liste entfernt
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- [ ] Manueller Sync → Server Status "Erreichbar"
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- [ ] Auto-Sync → Notification nach ~30 Min
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- [ ] App schließen → Auto-Sync funktioniert weiter
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- [ ] Device Reboot → Auto-Sync startet automatisch
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- [ ] Server offline → Error Notification
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- [ ] Notification Click → App öffnet sich
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---
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## 🚀 Build & Deployment
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### Debug Build
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```bash
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cd android
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./gradlew assembleDebug
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# APK: app/build/outputs/apk/debug/app-debug.apk
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```
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### Release Build
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```bash
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./gradlew assembleRelease
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# APK: app/build/outputs/apk/release/app-release-unsigned.apk
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```
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### Signieren (für Distribution)
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```bash
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# Keystore erstellen
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keytool -genkey -v -keystore my-release-key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias my-alias
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# APK signieren
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jarsigner -verbose -sigalg SHA256withRSA -digestalg SHA-256 \
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-keystore my-release-key.jks \
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app-release-unsigned.apk my-alias
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# Optimieren
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zipalign -v 4 app-release-unsigned.apk app-release.apk
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```
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---
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## 🐛 Debugging
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### LogCat Filter
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```bash
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# Nur App-Logs
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adb logcat -s SimpleNotesApp NetworkMonitor SyncWorker WebDavSyncService
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# Mit Timestamps
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adb logcat -v time -s SyncWorker
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# In Datei speichern
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adb logcat -s SyncWorker > sync_debug.log
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```
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### Common Issues
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**Problem: Auto-Sync funktioniert nicht**
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```
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Lösung: Akku-Optimierung deaktivieren
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Settings → Apps → Simple Notes → Battery → Don't optimize
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```
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**Problem: Server nicht erreichbar**
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```
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Check:
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1. Server läuft? → docker-compose ps
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2. IP korrekt? → ip addr show
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3. Port offen? → telnet 192.168.0.188 8080
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4. Firewall? → sudo ufw allow 8080
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```
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**Problem: Notifications kommen nicht**
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```
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Check:
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1. Notification Permission erteilt?
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2. Do Not Disturb aktiv?
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3. App im Background? → Force stop & restart
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```
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---
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## 📚 Dependencies
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```gradle
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// Core
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androidx.core:core-ktx:1.12.0
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androidx.appcompat:appcompat:1.6.1
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com.google.android.material:material:1.11.0
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// Lifecycle
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androidx.lifecycle:lifecycle-runtime-ktx:2.7.0
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// RecyclerView
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androidx.recyclerview:recyclerview:1.3.2
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// Coroutines
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org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3
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// WorkManager
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androidx.work:work-runtime-ktx:2.9.0
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// WebDAV Client
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com.github.thegrizzlylabs:sardine-android:0.8
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// Broadcast (deprecated but working)
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androidx.localbroadcastmanager:localbroadcastmanager:1.1.0
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```
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---
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## 🔮 Roadmap
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### v1.1
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||||
- [ ] Suche & Filter
|
||||
- [ ] Dark Mode
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- [ ] Tags/Kategorien
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- [ ] Markdown Preview
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|
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### v2.0
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- [ ] Desktop Client (Flutter)
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- [ ] End-to-End Verschlüsselung
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- [ ] Shared Notes (Collaboration)
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- [ ] Attachment Support
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||||
|
||||
---
|
||||
|
||||
## 📖 Weitere Dokumentation
|
||||
|
||||
- [Project Docs](https://github.com/inventory69/project-docs/tree/main/simple-notes-sync)
|
||||
- [Android Guide](https://github.com/inventory69/project-docs/blob/main/simple-notes-sync/ANDROID_GUIDE.md)
|
||||
- [Bugfix Documentation](https://github.com/inventory69/project-docs/blob/main/simple-notes-sync/BUGFIX_SYNC_SPAM_AND_NOTIFICATIONS.md)
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||||
|
||||
---
|
||||
|
||||
**Letzte Aktualisierung:** 21. Dezember 2025
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||||
Reference in New Issue
Block a user