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Flutter 현재 GPS 10초마다 가져오고 Firestore에 저장하고 렌더하고, 슬립모드에서도 GPS 수집하는 코드
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2023.02.22 19:45
Flutter 현재 GPS 10초마다 가져오고 렌더하는 코드
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:location/location.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
Location _location = Location();
List<LocationData> _locationDataList = [];
Timer? _timer;
@override
void initState() {
super.initState();
_timer = Timer.periodic(Duration(seconds: 10), (Timer t) => getLocation());
}
@override
void dispose() {
_timer?.cancel();
super.dispose();
}
void getLocation() async {
LocationData locationData = await _location.getLocation();
setState(() {
_locationDataList.add(locationData);
});
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: Text('GPS Coordinates'),
),
body: Center(
child: _locationDataList.isEmpty
? Text('Getting location...')
: ListView.builder(
itemCount: _locationDataList.length,
itemBuilder: (context, index) {
return ListTile(
title: Text(
'Latitude: ${_locationDataList[index].latitude}\nLongitude: ${_locationDataList[index].longitude}'),
);
},
),
),
),
);
}
}
Firebase 연동 GPS 코드
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:location/location.dart';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_core/firebase_core.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(MyApp());
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
Location _location = Location();
List<LocationData> _locationDataList = [];
Timer? _timer;
CollectionReference _locationCollection =
FirebaseFirestore.instance.collection('locations');
@override
void initState() {
super.initState();
_loadLocationsFromFirestore();
_timer = Timer.periodic(Duration(seconds: 10), (Timer t) => getLocation());
}
@override
void dispose() {
_timer?.cancel();
super.dispose();
}
void _loadLocationsFromFirestore() async {
QuerySnapshot snapshot = await _locationCollection.get();
List<LocationData> locationDataList = snapshot.docs.map((doc) {
GeoPoint geoPoint = doc['location'];
return LocationData.fromMap(
{'latitude': geoPoint.latitude, 'longitude': geoPoint.longitude});
}).toList();
setState(() {
_locationDataList = locationDataList;
});
}
void getLocation() async {
LocationData locationData = await _location.getLocation();
setState(() {
_locationDataList.add(locationData);
});
_saveLocationToFirestore(locationData);
}
void _saveLocationToFirestore(LocationData locationData) {
GeoPoint geoPoint =
GeoPoint(locationData.latitude!, locationData.longitude!);
_locationCollection.add({'location': geoPoint});
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: Text('GPS Coordinates'),
),
body: Center(
child: _locationDataList.isEmpty
? Text('Getting location...')
: ListView.builder(
itemCount: _locationDataList.length,
itemBuilder: (context, index) {
return ListTile(
title: Text(
'Latitude: ${_locationDataList[index].latitude}\nLongitude: ${_locationDataList[index].longitude}'),
);
},
),
),
),
);
}
}
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AI가 봐주는 내 사주팔자 - 운세박사
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