onLocationChanged Callback

lib/components/location_selector.dart

@@ -1,9 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:geocoding/geocoding.dart';
 import 'package:geolocator/geolocator.dart';
+import 'package:cofounderella/models/location.dart';
 
 class LocationSelector extends StatefulWidget {
-  const LocationSelector({super.key});
+  final Function(MyLocation) onLocationChanged; // Callback function
+
+  const LocationSelector({super.key, required this.onLocationChanged});
 
   @override
   LocationSelectorState createState() => LocationSelectorState();
@@ -98,6 +101,17 @@ class LocationSelectorState extends State<LocationSelector> {
             _administrativeArea = placeMark.administrativeArea;
             errorText = null;
           });
+          // location is found, trigger callback
+          widget.onLocationChanged(MyLocation(
+            street: _street,
+            country: _country,
+            administrativeArea: _administrativeArea,
+            locality: _city,
+            subLocality: _subLocality,
+            postalCode: _postalCode,
+            latitude: _latitude,
+            longitude: _longitude,
+          ));
         } else {
           setState(() {
             // should placeMarks be empty return latitude and longitude anyway

lib/constants.dart

@@ -6,6 +6,7 @@ class Constants {
 
   static const String dbCollectionUsers = 'Users';
   static const String dbCollectionLanguages = 'languages';
+  static const String dbCollectionLocations = 'locations';
   static const String dbCollectionChatRooms = 'chat_rooms';
   static const String dbCollectionMessages = 'messages';
 

lib/helper.dart

@@ -0,0 +1,18 @@
+/// Convert decimal coordinate to degrees minutes seconds (DMS)
+String convertDecimalToDMS(double decimalValue) {
+  bool isNegative = decimalValue < 0;
+  double absoluteValue = decimalValue.abs();
+
+  int degrees = absoluteValue.toInt();
+  double minutesDecimal = (absoluteValue - degrees) * 60;
+  int minutes = minutesDecimal.toInt();
+  double secondsDecimal = (minutesDecimal - minutes) * 60;
+  double seconds = double.parse(secondsDecimal.toStringAsFixed(2));
+
+  String direction = isNegative
+      ? (decimalValue < 0 ? 'W' : 'S')
+      : (decimalValue >= 0 ? (degrees != 0 ? 'N' : 'E') : '');
+
+  // return formatted string
+  return '${degrees.abs()}° ${minutes.abs()}\' ${seconds.abs()}" $direction';
+}

lib/models/location.dart

@@ -1,3 +1,5 @@
+import '../helper.dart';
+
 class MyLocation {
   final String street;
   final String country;
@@ -37,6 +39,24 @@ class MyLocation {
     };
   }
 
+  /// Returns: locality, country. In case of an error: latitude, longitude.
+  String toStringDegree() {
+    try {
+      String latResult = convertDecimalToDMS(latitude!);
+      String longResult = convertDecimalToDMS(longitude!);
+      return '$latResult, $longResult';
+    } catch (e) {
+      // on error return origin values
+      return '$latitude, $longitude';
+    }
+  }
+
+  @override
+  /// Returns: locality, country
+  String toString() {
+    return '$locality, $country';
+  }
+
   @override
   int get hashCode => Object.hash(latitude, longitude);
 

lib/pages/user_data_page.dart

@@ -4,11 +4,12 @@ import 'package:cofounderella/components/my_button.dart';
 import 'package:cofounderella/constants.dart';
 import 'package:cofounderella/models/language.dart';
 import 'package:cofounderella/models/language_setting.dart';
-import 'package:cofounderella/components/LocationSelector.dart';
+import 'package:cofounderella/components/location_selector.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:cofounderella/services/auth/auth_service.dart';
+import 'package:cofounderella/models/location.dart';
 
 class UserDataPage extends StatefulWidget {
   const UserDataPage({super.key});
@@ -20,7 +21,7 @@ class UserDataPage extends StatefulWidget {
 enum Gender { none, male, female, divers }
 
 class _UserDataPageState extends State<UserDataPage> {
-
+  MyLocation? _selectedLocation;
   List<LanguageSetting> languagesList = [];
   final List<Language> _selectedLanguages = [];
 
@@ -223,10 +224,23 @@ class _UserDataPageState extends State<UserDataPage> {
               'Location',
               style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
             ),
-            const Padding(
+            Padding(
-              padding: EdgeInsets.all(16.0),
+              padding: const EdgeInsets.all(16.0),
-              child: LocationSelector(),
+              child: LocationSelector(
+                onLocationChanged: (location) {
+                  setState(() {
+                    _selectedLocation = location;
+                  });
+                },
               ),
+            ),
+            // TODO Show and handle selected location
+            if (_selectedLocation != null) ...[
+              Text(style: const TextStyle(backgroundColor: Colors.yellow),
+                  'Selected Location: ${_selectedLocation!.toString()}'),
+              Text(style: const TextStyle(backgroundColor: Colors.yellowAccent),
+                  'Coordinates: ${_selectedLocation!.toStringDegree()}'),
+            ],
             const Text(
               'Age',
               style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),