allinone_location 4.1.1

Enterprise Flutter location SDK featuring Fused Location, Kalman smoothing, adaptive engines, geofencing, background recovery, diagnostic UI, and offline sync.

allinone_location

allinone_location is a high-precision, enterprise-grade Flutter Location SDK designed for production tracking, navigation, battery efficiency, geofencing, background service resilience, and offline data sync.

Built with zero external binary dependencies (pure Dart + standard Flutter plugins), allinone_location combines Google Fused Location, 2D Kalman smoothing, route smoothing, speed/heading/bearing/altitude processing, dead reckoning prediction, auto-pause battery saving, GPX/CSV exporting, two-tier reverse geocoding caching, and self-healing watchdog supervision into a unified, high-performance package.

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🚀 Performance Benchmarks

Every release is continuously stress-tested against extreme data throughput. Measured benchmark results on standard Flutter runtime:

Benchmark Test Scenario	Workload Size	Execution Time	Metric
Pipeline Throughput	10,000 Location Fixes	96 ms	9.65 µs / point
Geofence Scaling	1,000 Regions $\times$ 1,000 Locations	43 ms	1,000,000 Spatial Checks
RDP Route Compression	5,000 GPS Points	4 ms	100% Noise Reduction
2D Route Smoothing	5,000 GPS Points	9 ms	Moving Average $O(N)$
Distance Matrix	50 $\times$ 50 ($2,500$ Pairs)	1 ms	$2,500$ Pairs Computed
Heatmap Grid Binning	10,000 Points	20 ms	$10,000$ Grid Cells
Offline Queue Batching	1,000 Enqueued / 500 Dequeued	54 ms	Batched Storage Operations

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⚡ Comparison vs Existing Packages

Feature	geolocator	location	allinone_location
Fused GPS Location Fixes	✅	✅	✅ Multi-sample Weighted Centroid ($1/\sigma^2$)
2D Kalman & Route Smoothing	❌	❌	✅ Kalman + Bezier + Moving Average
Speed Engine & Acceleration Trends	❌	❌	✅ Moving Average + EMA + Trend
Altitude Spike Rejection & Elevation Gain	❌	❌	✅ Median + EMA Filter & Gain/Loss
Dead Reckoning Outage Prediction	❌	❌	✅ Speed + Bearing Prediction
Auto-Pause Battery Saver	❌	❌	✅ Motion Activity Classification
Circle & Polygon Geofencing	❌	❌	✅ With Dwell & Hysteresis Anti-Flapping
Offline Queue & Batch Sync	❌	❌	✅ FIFO Queue + SharedPreferences Disk
Self-Healing Background Watchdog	❌	❌	✅ Boot Auto-Start + State Recovery
GPX 1.1 XML & CSV Exporters	❌	❌	✅ Pure Offline Generators
Distance Matrix & Travel Time ETA	❌	❌	✅ Pure Offline Haversine Math
Reverse Geocoding Cache	❌	❌	✅ Two-Tier LRU Memory + Disk Cache
Diagnostic Dashboard Widget	❌	❌	✅ Pre-built Flutter UI Debugger

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🏗 Architecture Overview

graph TD
    A[GPS Hardware / Fused Location] --> B[AllInOneLocationSDK / AllInOneLocationService]
    B --> C[Mock Location Detector]
    B --> D[Motion Detector & Activity Classification]
    B --> E[Indoor/Outdoor Engine]
    B --> F[Speed, Heading & Bearing Engines]
    B --> G[Altitude Filter & Gain/Loss Engine]
    B --> H[2D Kalman & Route Smoother]
    B --> I[Dead Reckoning Predictor]
    B --> J[Auto-Pause Engine]
    
    H --> K[AllInOneLocation Object]
    I --> K
    
    K --> L[Smart Geofence Manager]
    K --> M[Offline Location Queue & Sync Manager]
    K --> N[Crash Recovery Manager]
    K --> O[Developer Diagnostic Dashboard Widget]

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📖 Quick Start & Examples

1. Unified SDK Access (AllInOneLocationSDK)

Access all sub-engines through a single static facade:

import 'package:allinone_location/allinone_location.dart';

// Single entry point facade accessors
final geofences = AllInOneLocationSDK.geofences;
final analytics = AllInOneLocationSDK.analytics;
final offlineSync = AllInOneLocationSDK.offlineSync;
final geocoding = AllInOneLocationSDK.geocoding;
final crashRecovery = AllInOneLocationSDK.crashRecovery;
final speedEngine = AllInOneLocationSDK.speedEngine;

2. Request Permissions

import 'package:allinone_location/allinone_location.dart';

Future<void> requestPermissions() async {
  final granted = await AllInOnePermission.requestAllPermissions();
  if (granted) {
    print('✅ Location & notification permissions granted!');
  }
}

3. High-Accuracy Multi-Sample Centroid Fix

final location = await AllInOneLocationService.getCurrentLocation(
  config: const AllInOneConfig(
    sampleCount: 3,
    enableKalmanFilter: true,
    enableSpeedEngine: true,
    enableAltitudeFiltering: true,
  ),
);

print('Lat: ${location.latitude}, Lng: ${location.longitude}');
print('Filtered Altitude: ${location.filteredAltitude}m');
print('Confidence Score: ${location.confidenceScore}%');

4. Polygon & Circle Geofencing

final geofenceManager = AllInOneLocationSDK.geofences;

// Add Circle Region
geofenceManager.addRegion(GeofenceRegion.circle(
  id: 'hq_office',
  centerLatitude: 12.9716,
  centerLongitude: 77.5946,
  radiusMeters: 100.0,
  dwellDuration: const Duration(minutes: 2),
  hysteresisMeters: 5.0,
));

// Listen to enter, exit, and dwell events
geofenceManager.onGeofenceEvent.listen((event) {
  print('🚩 Geofence [${event.geofenceId}] event: ${event.type.name}');
});

5. Export Route to GPX 1.1 XML & CSV

List<AllInOneLocation> routePoints = [...];

// Export to GPX XML
final gpxString = GpxExporter.export(routePoints, trackName: 'Site Survey Route');

// Export to CSV
final csvString = CsvExporter.export(routePoints);

6. Background Tracking Service

await AllInOneBackgroundService.initialize(
  config: const BackgroundConfig(
    notificationTitle: 'Site Worker Tracking',
    notificationContent: 'Active high-precision background tracking',
    heartbeatIntervalSeconds: 15,
    enableOfflineQueue: true,
    enableGeofencing: true,
  ),
);

await AllInOneBackgroundService.startService();

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🛠 Community & Contribution

We welcome contributions! Please review our Contributing Guide and Code of Conduct.

To run unit & performance benchmark tests locally:

cd packages/allinone
flutter test

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📄 License

This project is licensed under the MIT License - see the LICENSE file for details.