Cleanup

lib/main.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_broadcast_receiver/flutter_broadcast_receiver.dart';
+import 'package:geolocator/geolocator.dart';
 import 'package:isar/isar.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:stadtbote/model/message.dart';
@@ -29,14 +30,11 @@ Future<void> main() async {
     MessageSchema,
   ], directory: dir.path);
 
-  runZonedGuarded(() {
-  }, (error, stackTrace) {
+  runZonedGuarded(() {}, (error, stackTrace) {
     _traceUncaughtExceptions(error, stackTrace);
   });
 
-  MqttCore.setup();
-
-  runApp(const MyApp());
+  runApp(MyApp());
 }
 
 void _traceUncaughtExceptions(Object error, StackTrace stackTrace) {
@@ -45,10 +43,16 @@ void _traceUncaughtExceptions(Object error, StackTrace stackTrace) {
 }
 
 class MyApp extends StatelessWidget {
-  const MyApp({super.key});
+  MyApp({super.key}) {
+    MqttCore.setup();
+
+    _startLocationService();
+  }
 
   static late Isar isarInstance;
 
+  static Position? currentPosition;
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
@@ -59,6 +63,56 @@ class MyApp extends StatelessWidget {
       home: const Main(),
     );
   }
+
+  _startLocationService() async {
+    var result = await _handleLocationPermissions();
+
+    if (result) {
+      LocationSettings locationSettings = const LocationSettings(
+        accuracy: LocationAccuracy.high,
+        distanceFilter: 0,
+      );
+
+      Geolocator.getPositionStream(locationSettings: locationSettings).listen((Position? position) {
+        MyApp.currentPosition = position;
+
+        Util.logInfo(position == null ? 'Unknown' : '${position.latitude.toString()}, ${position.longitude.toString()}');
+      });
+    }
+  }
+
+  Future<bool> _handleLocationPermissions() async {
+    // Test if location services are enabled.
+    var serviceEnabled = await Geolocator.isLocationServiceEnabled();
+    if (!serviceEnabled) {
+      // Location services are not enabled don't continue
+      // accessing the position and request users of the
+      // App to enable the location services.
+      return false;
+      //return Future.error('Location services are disabled.');
+    }
+
+    var permission = await Geolocator.checkPermission();
+    if (permission == LocationPermission.denied) {
+      permission = await Geolocator.requestPermission();
+      if (permission == LocationPermission.denied) {
+        // Permissions are denied, next time you could try
+        // requesting permissions again (this is also where
+        // Android's shouldShowRequestPermissionRationale
+        // returned true. According to Android guidelines
+        // your App should show an explanatory UI now.
+        //return Future.error('Location permissions are denied');
+        return false;
+      }
+    }
+
+    if (permission == LocationPermission.deniedForever) {
+      //return Future.error('Location permissions are permanently denied, we cannot request permissions.');
+      return false;
+    }
+
+    return true;
+  }
 }
 
 class Main extends StatefulWidget {
@@ -134,9 +188,7 @@ class _MainState extends State<Main> {
       key: GlobalKey(),
       child: PopScope(
         canPop: contentStack.isNotEmpty,
-        onPopInvoked: (didPop) => {
-          _popContentView()
-        },
+        onPopInvoked: (didPop) => {_popContentView()},
         child: Scaffold(
           appBar: PreferredSize(
             preferredSize: const Size.fromHeight(100),
@@ -203,9 +255,7 @@ class _MainState extends State<Main> {
                         SizedBox(
                           height: 100,
                           width: 300,
-                          child: Center(
-                            heightFactor: 1,
-                            child: _currentTitleWidget),
+                          child: Center(heightFactor: 1, child: _currentTitleWidget),
                         ),
                       ],
                     ),
@@ -224,11 +274,13 @@ class _MainState extends State<Main> {
                       height: 30,
                       color: Colors.red,
                       child: const Center(
-                        child: Text("*** OFFLINE ***",
+                        child: Text(
+                          "*** OFFLINE ***",
                           style: TextStyle(
                             color: Colors.white,
                             fontSize: 15.0,
-                          ),),
+                          ),
+                        ),
                       ),
                     ),
                   );
@@ -236,7 +288,7 @@ class _MainState extends State<Main> {
               ),
               Expanded(child: _currentContent),
             ],
-          ),// This trailing comma makes auto-formatting nicer for build methods.
+          ), // This trailing comma makes auto-formatting nicer for build methods.
         ),
       ),
     );