Created
September 5, 2020 13:58
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import 'package:flutter/material.dart'; | |
import 'package:geolocator/geolocator.dart'; | |
import 'package:maps_blog_part1/services/location_service.dart'; | |
class RealtimeLocationUpdateExample extends StatefulWidget { | |
@override | |
_RealtimeLocationUpdateExampleState createState() => | |
_RealtimeLocationUpdateExampleState(); | |
} | |
class _RealtimeLocationUpdateExampleState | |
extends State<RealtimeLocationUpdateExample> { | |
Position currentLocation; | |
var locationService; | |
@override | |
void initState() { | |
locationService = LocationService(context); | |
super.initState(); | |
} | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
appBar: AppBar( | |
title: Text('GPS Location Management'), | |
), | |
body: Column( | |
mainAxisAlignment: MainAxisAlignment.center, | |
crossAxisAlignment: CrossAxisAlignment.center, | |
children: [ | |
/// | |
/// Current Location Text Widget | |
/// | |
Center( | |
child: currentLocation != null | |
? Text( | |
"Lat: ${currentLocation?.latitude}, Long: ${currentLocation?.longitude}") | |
: Text('Current Location Not set yet')), | |
SizedBox(height: 40), | |
/// | |
/// Realtime Location updates Button | |
/// | |
RaisedButton( | |
child: Text('Get Realtime Updates'), | |
onPressed: () async { | |
final Stream stream = | |
await LocationService(context).getCurrentLocationStream(); | |
stream.listen((position) { | |
setState(() { | |
currentLocation = position; | |
}); | |
}); | |
}, | |
) | |
], | |
), | |
); | |
} | |
} |
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