From 2488023aa3548bccc7ba2eeac6f69157c09f8c48 Mon Sep 17 00:00:00 2001 From: Rafael <1024481@stud.hs-mannheim.de> Date: Thu, 9 May 2024 13:31:00 +0200 Subject: [PATCH] Added LocationSelector. Depends on geolocator, geocoding. --- lib/components/LocationSelector.dart | 196 +++++++++++++++++++++++++++ lib/models/location.dart | 48 +++++++ lib/pages/user_data_page.dart | 10 +- pubspec.lock | 112 +++++++++++++++ pubspec.yaml | 2 + 5 files changed, 362 insertions(+), 6 deletions(-) create mode 100644 lib/components/LocationSelector.dart create mode 100644 lib/models/location.dart diff --git a/lib/components/LocationSelector.dart b/lib/components/LocationSelector.dart new file mode 100644 index 0000000..67fffb1 --- /dev/null +++ b/lib/components/LocationSelector.dart @@ -0,0 +1,196 @@ +import 'package:flutter/material.dart'; +import 'package:geocoding/geocoding.dart'; +import 'package:geolocator/geolocator.dart'; + +class LocationSelector extends StatefulWidget { + const LocationSelector({super.key}); + + @override + LocationSelectorState createState() => LocationSelectorState(); +} + +class LocationSelectorState extends State { + final TextEditingController _locationController = TextEditingController(); + String _street = ''; + String _country = ''; + String? _administrativeArea; // DE: Bundesland + String _city = ''; + String? _subLocality; // DE: Stadtteil + String? _postalCode; + double? _latitude; + double? _longitude; + String? errorText; + + @override + Widget build(BuildContext context) { + return Column( + crossAxisAlignment: CrossAxisAlignment.start, + children: [ + TextField( + // onSubmitted: (loc) => {_searchLocation2(loc)}, + controller: _locationController, + decoration: InputDecoration( + labelText: 'Enter location', + suffixIcon: IconButton( + icon: const Icon(Icons.search), + onPressed: _searchLocation, + ), + ), + ), + Text( + errorText != null ? '$errorText' : '', + style: const TextStyle(color: Colors.red), + ), + const SizedBox(height: 20), + ElevatedButton( + onPressed: _getCurrentLocation, + child: const Text('Use Current Position'), + ), + const SizedBox(height: 20), + Text('Country: $_country'), + Text('City: $_city'), + Text('Postal Code: $_postalCode'), + Text('Street: $_street'), + Text('Administrative Area: $_administrativeArea'), + Text('Latitude: $_latitude'), + Text('Longitude: $_longitude'), + ], + ); + } + + void _searchLocation() async { + String locationQuery = _locationController.text; + + if (locationQuery.trim().isEmpty) { + setState(() { + errorText = 'Specify an address for the search'; + _street = ''; + _country = ''; + _city = ''; + _subLocality = null; + _postalCode = null; + _administrativeArea = null; + _latitude = null; + _longitude = null; + }); + return; + } + + try { + List locations = await locationFromAddress(locationQuery); + if (locations.isNotEmpty) { + // Take first match + Location firstLocation = locations.first; + + // Extract country and city information + List placeMarks = await placemarkFromCoordinates( + firstLocation.latitude, firstLocation.longitude); + if (placeMarks.isNotEmpty) { + Placemark placeMark = placeMarks.first; + setState(() { + _latitude = firstLocation.latitude; + _longitude = firstLocation.longitude; + _street = '${placeMark.street}'; + _country = placeMark.country!; + _city = placeMark.locality!; + _subLocality = placeMark.subLocality; + _postalCode = placeMark.postalCode; + _administrativeArea = placeMark.administrativeArea; + errorText = null; + }); + } else { + setState(() { + // should placeMarks be empty return latitude and longitude anyway + _latitude = firstLocation.latitude; + _longitude = firstLocation.longitude; + errorText = null; + }); + } + } else { + setState(() { + errorText = 'Location $locationQuery not found'; + _street = ''; + _country = ''; + _city = ''; + _subLocality = null; + _postalCode = null; + _administrativeArea = null; + _latitude = null; + _longitude = null; + }); + } + } catch (e) { + setState(() { + errorText = 'Error searching location $locationQuery: $e'; + _street = ''; + _country = ''; + _city = ''; + _subLocality = null; + _postalCode = null; + _administrativeArea = null; + _latitude = null; + _longitude = null; + }); + } + } + + /// Determine users position using geolocator package + void _getCurrentLocation() async { + bool serviceEnabled; + LocationPermission permission; + + try { + // Test if location services are enabled. + 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 Future.error('Location services are disabled.'); + } + + 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'); + } + } + + if (permission == LocationPermission.deniedForever) { + // Permissions are denied forever, handle appropriately. + return Future.error( + 'Location permissions are permanently denied, we cannot request permissions.'); + } + } catch (e) { + print('Error getting location permission: $e'); + } + + try { + // When we reach here, permissions are granted and we can + // continue accessing the position of the device. + Position position = await Geolocator.getCurrentPosition( + desiredAccuracy: LocationAccuracy.high); + + List placeMarks = + await placemarkFromCoordinates(position.latitude, position.longitude); + if (placeMarks.isNotEmpty) { + Placemark placeMark = placeMarks.first; + setState(() { + _street = placeMark.street!; + _country = placeMark.country!; + _city = placeMark.locality!; + _latitude = position.latitude; + _longitude = position.longitude; + }); + } + } catch (e) { + print('Error getting current location: $e'); + } + } +} diff --git a/lib/models/location.dart b/lib/models/location.dart new file mode 100644 index 0000000..2755119 --- /dev/null +++ b/lib/models/location.dart @@ -0,0 +1,48 @@ +class MyLocation { + final String street; + final String country; + + /// DE: Bundesland + final String? administrativeArea; + /// City + final String locality; + /// DE: Stadtteil + final String? subLocality; + final String? postalCode; + final double? latitude; + final double? longitude; + + MyLocation({ + required this.street, + required this.country, + required this.administrativeArea, + required this.locality, + required this.subLocality, + required this.postalCode, + required this.latitude, + required this.longitude, + }); + + // convert to a map + Map toMap() { + return { + 'street': street, + 'country': country, + 'administrativeArea': administrativeArea, + 'locality': locality, + 'subLocality': subLocality, + 'postalCode': postalCode, + 'latitude': latitude, + 'longitude': longitude, + }; + } + + @override + int get hashCode => Object.hash(latitude, longitude); + + @override + bool operator ==(Object other) => + other is MyLocation && + latitude == other.latitude && + longitude == other.longitude; +} diff --git a/lib/pages/user_data_page.dart b/lib/pages/user_data_page.dart index ed20ea3..9b80b1f 100644 --- a/lib/pages/user_data_page.dart +++ b/lib/pages/user_data_page.dart @@ -1,10 +1,10 @@ import 'dart:convert'; import 'package:cloud_firestore/cloud_firestore.dart'; import 'package:cofounderella/components/my_button.dart'; -import 'package:cofounderella/components/my_textfield.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:flutter/material.dart'; import 'package:flutter/services.dart'; import 'package:flutter_svg/flutter_svg.dart'; @@ -20,7 +20,6 @@ class UserDataPage extends StatefulWidget { enum Gender { none, male, female, divers } class _UserDataPageState extends State { - final TextEditingController _locationController = TextEditingController(); List languagesList = []; final List _selectedLanguages = []; @@ -224,10 +223,9 @@ class _UserDataPageState extends State { 'Location', style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold), ), - MyTextField( - hintText: "Location", - obscureText: false, - controller: _locationController, + const Padding( + padding: EdgeInsets.all(16.0), + child: LocationSelector(), ), const Text( 'Age', diff --git a/pubspec.lock b/pubspec.lock index b5b361a..ce3bff6 100644 --- a/pubspec.lock +++ b/pubspec.lock @@ -81,6 +81,14 @@ packages: url: "https://pub.dev" source: hosted version: "1.18.0" + crypto: + dependency: transitive + description: + name: crypto + sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab + url: "https://pub.dev" + source: hosted + version: "3.0.3" cupertino_icons: dependency: "direct main" description: @@ -145,6 +153,14 @@ packages: url: "https://pub.dev" source: hosted version: "2.16.0" + fixnum: + dependency: transitive + description: + name: fixnum + sha256: "25517a4deb0c03aa0f32fd12db525856438902d9c16536311e76cdc57b31d7d1" + url: "https://pub.dev" + source: hosted + version: "1.1.0" flutter: dependency: "direct main" description: flutter @@ -176,6 +192,86 @@ packages: description: flutter source: sdk version: "0.0.0" + geocoding: + dependency: "direct main" + description: + name: geocoding + sha256: d580c801cba9386b4fac5047c4c785a4e19554f46be42f4f5e5b7deacd088a66 + url: "https://pub.dev" + source: hosted + version: "3.0.0" + geocoding_android: + dependency: transitive + description: + name: geocoding_android + sha256: "1b13eca79b11c497c434678fed109c2be020b158cec7512c848c102bc7232603" + url: "https://pub.dev" + source: hosted + version: "3.3.1" + geocoding_ios: + dependency: transitive + description: + name: geocoding_ios + sha256: "94ddba60387501bd1c11e18dca7c5a9e8c645d6e3da9c38b9762434941870c24" + url: "https://pub.dev" + source: hosted + version: "3.0.1" + geocoding_platform_interface: + dependency: transitive + description: + name: geocoding_platform_interface + sha256: "8c2c8226e5c276594c2e18bfe88b19110ed770aeb7c1ab50ede570be8b92229b" + url: "https://pub.dev" + source: hosted + version: "3.2.0" + geolocator: + dependency: "direct main" + description: + name: geolocator + sha256: "694ec58afe97787b5b72b8a0ab78c1a9244811c3c10e72c4362ef3c0ceb005cd" + url: "https://pub.dev" + source: hosted + version: "11.0.0" + geolocator_android: + dependency: transitive + description: + name: geolocator_android + sha256: "80cd39a94100957431a6dd37cebd686f6d446bbc9a884d90c9a07b34fd28b923" + url: "https://pub.dev" + source: hosted + version: "4.5.5" + geolocator_apple: + dependency: transitive + description: + name: geolocator_apple + sha256: bc2aca02423ad429cb0556121f56e60360a2b7d694c8570301d06ea0c00732fd + url: "https://pub.dev" + source: hosted + version: "2.3.7" + geolocator_platform_interface: + dependency: transitive + description: + name: geolocator_platform_interface + sha256: "009a21c4bc2761e58dccf07c24f219adaebe0ff707abdfd40b0a763d4003fab9" + url: "https://pub.dev" + source: hosted + version: "4.2.2" + geolocator_web: + dependency: transitive + description: + name: geolocator_web + sha256: "49d8f846ebeb5e2b6641fe477a7e97e5dd73f03cbfef3fd5c42177b7300fb0ed" + url: "https://pub.dev" + source: hosted + version: "3.0.0" + geolocator_windows: + dependency: transitive + description: + name: geolocator_windows + sha256: "53da08937d07c24b0d9952eb57a3b474e29aae2abf9dd717f7e1230995f13f0e" + url: "https://pub.dev" + source: hosted + version: "0.2.3" http: dependency: transitive description: @@ -309,6 +405,14 @@ packages: url: "https://pub.dev" source: hosted version: "1.10.0" + sprintf: + dependency: transitive + description: + name: sprintf + sha256: "1fc9ffe69d4df602376b52949af107d8f5703b77cda567c4d7d86a0693120f23" + url: "https://pub.dev" + source: hosted + version: "7.0.0" stack_trace: dependency: transitive description: @@ -357,6 +461,14 @@ packages: url: "https://pub.dev" source: hosted version: "1.3.2" + uuid: + dependency: transitive + description: + name: uuid + sha256: "814e9e88f21a176ae1359149021870e87f7cddaf633ab678a5d2b0bff7fd1ba8" + url: "https://pub.dev" + source: hosted + version: "4.4.0" vector_graphics: dependency: transitive description: diff --git a/pubspec.yaml b/pubspec.yaml index e293535..d6f7e14 100644 --- a/pubspec.yaml +++ b/pubspec.yaml @@ -40,6 +40,8 @@ dependencies: cloud_firestore: ^4.17.2 provider: ^6.1.2 flutter_svg: ^2.0.10+1 + geolocator: ^11.0.0 + geocoding: ^3.0.0 dev_dependencies: flutter_test: