53 lines
1.6 KiB
Dart
53 lines
1.6 KiB
Dart
import 'package:geolocator/geolocator.dart';
|
|
import 'database_helper.dart';
|
|
|
|
class GpsService {
|
|
final _dbHelper = DatabaseHelper();
|
|
|
|
/// 現在地の取得（権限チェック含む）
|
|
Future<Position?> getCurrentLocation() async {
|
|
bool serviceEnabled;
|
|
LocationPermission permission;
|
|
|
|
serviceEnabled = await Geolocator.isLocationServiceEnabled();
|
|
if (!serviceEnabled) return null;
|
|
|
|
permission = await Geolocator.checkPermission();
|
|
if (permission == LocationPermission.denied) {
|
|
permission = await Geolocator.requestPermission();
|
|
if (permission == LocationPermission.denied) return null;
|
|
}
|
|
|
|
if (permission == LocationPermission.deniedForever) return null;
|
|
|
|
try {
|
|
return await Geolocator.getCurrentPosition(
|
|
locationSettings: const LocationSettings(
|
|
accuracy: LocationAccuracy.medium,
|
|
timeLimit: Duration(seconds: 5),
|
|
),
|
|
);
|
|
} catch (_) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/// 現在地を履歴としてデータベースに記録
|
|
Future<void> logLocation() async {
|
|
final pos = await getCurrentLocation();
|
|
if (pos == null) return;
|
|
|
|
final db = await _dbHelper.database;
|
|
await db.insert('app_gps_history', {
|
|
'latitude': pos.latitude,
|
|
'longitude': pos.longitude,
|
|
'timestamp': DateTime.now().toIso8601String(),
|
|
});
|
|
}
|
|
|
|
/// 指定件数のGPS履歴を取得
|
|
Future<List<Map<String, dynamic>>> getHistory({int limit = 10}) async {
|
|
final db = await _dbHelper.database;
|
|
return await db.query('app_gps_history', orderBy: 'timestamp DESC', limit: limit);
|
|
}
|
|
}
|