fix: resolve 2 remaining strict analysis errors

- introPage.dart: Convert fireItems to proper static function closure
- mainDrawer.dart: Convert unreadCount int to String for Text widget
This commit is contained in:
vjrj 2026-03-06 11:21:06 +01:00
parent 1864e5b105
commit 7a4c9fb3bc
61 changed files with 1386 additions and 1202 deletions

View file

@ -1,8 +1,6 @@
import 'dart:async';
import 'package:comunes_flutter/comunes_flutter.dart';
import 'package:fires_flutter/models/fireNotification.dart';
import 'package:fires_flutter/models/yourLocation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:json_annotation/json_annotation.dart';
@ -10,7 +8,9 @@ import 'package:latlong2/latlong.dart';
import 'package:meta/meta.dart';
import 'fireMapState.dart';
import 'fireNotification.dart';
import 'user.dart';
import 'yourLocation.dart';
export 'fireMapState.dart';
@ -19,6 +19,25 @@ part 'appState.g.dart';
@immutable
@JsonSerializable(nullable: false)
class AppState {
const AppState(
{this.yourLocations = const <YourLocation>[],
this.fireNotifications = const <FireNotification>[],
this.fireNotificationsUnread = 0,
this.user = const User.initial(),
this.isLoading = false,
this.isLoaded = false,
this.error = '',
this.gmapKey = '',
this.firesApiKey = '',
this.firesApiUrl = '',
this.serverUrl = '',
this.monitoredAreas = const <Polyline>[],
this.fireMapState = const FireMapState.initial()});
@JsonKey(ignore: true)
factory AppState.fromJson(Map<String, dynamic> json) =>
_$AppStateFromJson(json);
@JsonKey(ignore: true)
final bool isLoading;
@JsonKey(ignore: true)
@ -44,25 +63,6 @@ class AppState {
@JsonKey(ignore: true)
final FireMapState fireMapState;
@JsonKey(ignore: true)
factory AppState.fromJson(Map<String, dynamic> json) =>
_$AppStateFromJson(json);
AppState(
{this.yourLocations = const <YourLocation>[],
this.fireNotifications = const <FireNotification>[],
this.fireNotificationsUnread = 0,
this.user = const User.initial(),
this.isLoading = false,
this.isLoaded = false,
this.error = '',
this.gmapKey = '',
this.firesApiKey = '',
this.firesApiUrl = '',
this.serverUrl = '',
this.monitoredAreas = const <Polyline>[],
this.fireMapState = const FireMapState.initial()});
AppState copyWith(
{bool? isLoading,
bool? isLoaded,
@ -77,7 +77,7 @@ class AppState {
int? fireNotificationsUnread,
FireMapState? fireMapState,
List<Polyline>? monitoredAreas}) {
return new AppState(
return AppState(
isLoading: isLoading ?? this.isLoading,
isLoaded: isLoaded ?? this.isLoaded,
user: user ?? this.user,
@ -100,24 +100,24 @@ class AppState {
}
}
typedef void AddYourLocationFunction(YourLocation loc);
typedef void DeleteYourLocationFunction(YourLocation loc);
typedef void OnRefreshYourLocationsFunction(Completer<Null> callback);
typedef void ToggleSubscriptionFunction(YourLocation loc);
typedef void OnLocationTapFunction(YourLocation loc);
typedef void OnSubscribeFunction(YourLocation loc);
typedef void OnSubscribeDistanceChangeFunction(YourLocation loc);
typedef void OnUnSubscribeFunction(YourLocation loc);
typedef void OnSubscribeConfirmedFunction(YourLocation loc);
typedef void OnLocationEdit(YourLocation loc);
typedef void OnLocationEditing(YourLocation loc);
typedef void OnLocationEditConfirm(YourLocation loc);
typedef void OnLocationEditCancel(YourLocation loc);
typedef void TapFireNotificationFunction(FireNotification notif);
typedef void OnFirePressedInMap(LatLng latLng, DateTime when, String source);
typedef AddYourLocationFunction = void Function(YourLocation loc);
typedef DeleteYourLocationFunction = void Function(YourLocation loc);
typedef OnRefreshYourLocationsFunction = void Function(Completer<void> callback);
typedef ToggleSubscriptionFunction = void Function(YourLocation loc);
typedef OnLocationTapFunction = void Function(YourLocation loc);
typedef OnSubscribeFunction = void Function(YourLocation loc);
typedef OnSubscribeDistanceChangeFunction = void Function(YourLocation loc);
typedef OnUnSubscribeFunction = void Function(YourLocation loc);
typedef OnSubscribeConfirmedFunction = void Function(YourLocation loc);
typedef OnLocationEdit = void Function(YourLocation loc);
typedef OnLocationEditing = void Function(YourLocation loc);
typedef OnLocationEditConfirm = void Function(YourLocation loc);
typedef OnLocationEditCancel = void Function(YourLocation loc);
typedef TapFireNotificationFunction = void Function(FireNotification notif);
typedef OnFirePressedInMap = void Function(LatLng latLng, DateTime when, String source);
// typedef void OnReceivedFireNotificationFunction(FireNotification notif);
typedef void DeleteFireNotificationFunction(FireNotification notif);
typedef void DeleteAllFireNotificationFunction();
typedef DeleteFireNotificationFunction = void Function(FireNotification notif);
typedef DeleteAllFireNotificationFunction = void Function();
// unused
// typedef void UpdateYourLocationFunction(ObjectId id, YourLocation loc);

View file

@ -1,18 +1,26 @@
class BasicLocation implements Comparable<BasicLocation> {
// static BasicLocation noLocation = new BasicLocation(lat: 0.0, lon: 0.0);
BasicLocation({required this.lat, required this.lon, this.description});
BasicLocation.fromJson(Map<String, dynamic> json)
: lat = (json['lat'] as num).toDouble(),
lon = (json['lon'] as num).toDouble(),
description = json['description'] as String?;
final double lat;
final double lon;
final String? description;
// static BasicLocation noLocation = new BasicLocation(lat: 0.0, lon: 0.0);
BasicLocation({required this.lat, required this.lon, this.description}) {}
@override
int compareTo(BasicLocation other) {
return lat == other.lat && lon == other.lon ? 1 : 0;
}
bool operator ==(o) => o is BasicLocation && o.lat == lat && o.lon == lon;
@override
bool operator ==(Object o) => o is BasicLocation && o.lat == lat && o.lon == lon;
@override
int get hashCode {
int hash = 1;
hash = hash * 17 + lat.hashCode;
@ -20,12 +28,7 @@ class BasicLocation implements Comparable<BasicLocation> {
return hash;
}
BasicLocation.fromJson(Map<String, dynamic> json)
: lat = (json['lat'] as num).toDouble(),
lon = (json['lon'] as num).toDouble(),
description = json['description'] as String?;
Map<String, dynamic> toJson() => {
Map<String, dynamic> toJson() => <String, dynamic>{
'lat': lat,
'lon': lon,
'description': description,

View file

@ -1,7 +1,8 @@
import 'package:fires_flutter/models/fireNotification.dart';
import 'package:fires_flutter/models/yourLocation.dart';
import 'package:meta/meta.dart';
import 'fireNotification.dart';
import 'yourLocation.dart';
enum FireMapStatus {
view,
subscriptionConfirm,
@ -14,6 +15,26 @@ enum FireMapLayer { osmcGrey, esriSatellite, osmc, esri, esriTerrain }
@immutable
class FireMapState {
const FireMapState(
{this.status = FireMapStatus.view,
this.layer = FireMapLayer.osmcGrey,
this.yourLocation,
this.numFires = 0,
this.fires = const <dynamic>[],
this.fireNotification,
this.falsePos = const <dynamic>[],
this.industries = const <dynamic>[]});
const FireMapState.initial()
: status = FireMapStatus.view,
layer = FireMapLayer.osmcGrey,
yourLocation = null,
fireNotification = null,
numFires = 0,
fires = const <dynamic>[],
falsePos = const <dynamic>[],
industries = const <dynamic>[];
final FireMapStatus status;
final FireMapLayer layer;
final int numFires;
@ -23,26 +44,6 @@ class FireMapState {
final List<dynamic> industries;
final YourLocation? yourLocation;
const FireMapState.initial()
: this.status = FireMapStatus.view,
this.layer = FireMapLayer.osmcGrey,
this.yourLocation = null,
this.fireNotification = null,
this.numFires = 0,
this.fires = const [],
this.falsePos = const [],
this.industries = const [];
FireMapState(
{this.status = FireMapStatus.view,
this.layer = FireMapLayer.osmcGrey,
this.yourLocation,
this.numFires = 0,
this.fires = const [],
this.fireNotification,
this.falsePos = const [],
this.industries = const []});
FireMapState copyWith({
FireMapStatus? status,
FireMapLayer? layer,
@ -53,9 +54,9 @@ class FireMapState {
List<dynamic>? falsePos,
List<dynamic>? industries,
}) {
return new FireMapState(
return FireMapState(
yourLocation: yourLocation ?? this.yourLocation,
fireNotification: fireNotication ?? this.fireNotification,
fireNotification: fireNotication ?? fireNotification,
numFires: numFires ?? this.numFires,
fires: fires ?? this.fires,
falsePos: falsePos ?? this.falsePos,

View file

@ -9,6 +9,19 @@ part 'fireNotification.g.dart';
@JsonSerializable(nullable: false)
class FireNotification {
FireNotification(
{required this.id,
required this.lat,
required this.lon,
required this.description,
required this.when,
required this.read,
required this.sealed,
required this.subsId});
factory FireNotification.fromJson(Map<String, dynamic> json) =>
_$FireNotificationFromJson(json);
@JsonKey(toJson: objectIdToJson, fromJson: objectIdFromJson)
ObjectId id;
final double lat;
@ -20,19 +33,6 @@ class FireNotification {
final ObjectId subsId;
final bool read;
factory FireNotification.fromJson(Map<String, dynamic> json) =>
_$FireNotificationFromJson(json);
FireNotification(
{required this.id,
required this.lat,
required this.lon,
required this.description,
required this.when,
required this.read,
required this.sealed,
required this.subsId}) {}
FireNotification copyWith(
{ObjectId? id,
double? lat,
@ -42,7 +42,7 @@ class FireNotification {
DateTime? when,
String? sealed,
ObjectId? subsId}) {
return new FireNotification(
return FireNotification(
id: id ?? this.id,
lat: lat ?? this.lat,
lon: lon ?? this.lon,
@ -83,7 +83,7 @@ class FireNotification {
return 'FireNotification {id: $id, lat: $lat, lon: $lon, when: $when, read: $read, subsId: $subsId, sealed ${ellipse(sealed)}';
}
static final Map<String, Route<Null>> routes = <String, Route<Null>>{};
static final Map<String, Route<void>> routes = <String, Route<void>>{};
Map<String, dynamic> toJson() => _$FireNotificationToJson(this);
/*

View file

@ -2,30 +2,31 @@ import 'dart:async';
import 'dart:convert';
import 'package:comunes_flutter/comunes_flutter.dart';
import 'package:fires_flutter/models/fireNotification.dart';
import 'package:shared_preferences/src/shared_preferences_legacy.dart';
import '../globals.dart' as globals;
import 'fireNotification.dart';
final String fireNotificationKey = 'fireNotifications';
const String fireNotificationKey = 'fireNotifications';
Future<List<FireNotification>> loadFireNotifications() async {
return await globals.prefs.then((prefs) {
List<String>? FireNotifications = prefs.getStringList(fireNotificationKey);
List<FireNotification> persistedList = [];
(FireNotifications ?? []).forEach((notificationString) {
Map<String, dynamic> notificationMap =
return globals.prefs.then((SharedPreferences prefs) {
final List<String>? FireNotifications = prefs.getStringList(fireNotificationKey);
final List<FireNotification> persistedList = <FireNotification>[];
for (final String notificationString in (FireNotifications ?? <String>[])) {
final Map<String, dynamic> notificationMap =
json.decode(notificationString) as Map<String, dynamic>;
persistedList.add(FireNotification.fromJson(notificationMap));
});
}
return persistedList;
});
}
persistFireNotifications(List<FireNotification> notif) {
void persistFireNotifications(List<FireNotification> notif) {
// print('Persisting $notif');
globals.prefs.then((prefs) {
List<String> notifAsString = [];
notif.where(notNull).toList().forEach((notification) {
globals.prefs.then((SharedPreferences prefs) {
final List<String> notifAsString = <String>[];
notif.where(notNull).toList().forEach((FireNotification notification) {
notifAsString.add(json.encode(notification.toJson()));
});
prefs.setStringList(fireNotificationKey, notifAsString);

View file

@ -2,7 +2,6 @@ import 'dart:async';
import 'dart:convert';
import 'package:dio/dio.dart';
import 'package:fires_flutter/models/yourLocation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:latlong2/latlong.dart';
@ -12,49 +11,50 @@ import '../objectIdUtils.dart';
import '../redux/actions.dart';
import 'appState.dart';
import 'falsePositiveTypes.dart';
import 'yourLocation.dart';
class FiresApi {
late final Dio _dio;
FiresApi() {
_dio = Dio();
}
late final Dio _dio;
Future<String> createUser(
AppState state, String mobileToken, String lang) async {
final params = {
"token": state.firesApiKey,
"mobileToken": mobileToken,
"lang": lang
final Map<String, String> params = <String, String>{
'token': state.firesApiKey,
'mobileToken': mobileToken,
'lang': lang
};
final String url = '${state.firesApiUrl}mobile/users';
try {
final response = await _dio.post(url, data: params);
final Response<dynamic> response = await _dio.post(url, data: params);
if (response.statusCode == 200) {
return response.data['data']['userId'] as String;
} else {
throw "Unexpected error on create user";
throw 'Unexpected error on create user';
}
} catch (e) {
throw "Error creating user: $e";
throw 'Error creating user: $e';
}
}
Future<List<YourLocation>> fetchYourLocations(AppState state) async {
final apiKey = state.firesApiKey;
final mobileToken = state.user.token;
final String apiKey = state.firesApiKey;
final String mobileToken = state.user.token;
final String url =
'${state.firesApiUrl}mobile/subscriptions/all/$apiKey/$mobileToken';
try {
final response = await _dio.get(url);
final Response<dynamic> response = await _dio.get(url);
if (response.statusCode == 200) {
final dataSubscriptions =
final List<dynamic> dataSubscriptions =
response.data['data']['subscriptions'] as List<dynamic>;
List<YourLocation> subscribed = [];
final List<YourLocation> subscribed = <YourLocation>[];
for (int i = 0; i < dataSubscriptions.length; i++) {
var el = dataSubscriptions[i] as Map<String, dynamic>;
var lat = (el['location']['lat'] as num).toDouble();
var lon = (el['location']['lon'] as num).toDouble();
final Map<String, dynamic> el = dataSubscriptions[i] as Map<String, dynamic>;
final double lat = (el['location']['lat'] as num).toDouble();
final double lon = (el['location']['lon'] as num).toDouble();
subscribed.add(YourLocation(
id: objectIdFromJson(el['_id']['_str'] as String),
lat: lat,
@ -64,50 +64,50 @@ class FiresApi {
}
return subscribed;
} else {
throw "Unexpected error fetching your locations";
throw 'Unexpected error fetching your locations';
}
} catch (e) {
throw "Error fetching locations: $e";
throw 'Error fetching locations: $e';
}
}
Future<String> subscribe(AppState state, YourLocation loc) async {
final params = {
"token": state.firesApiKey,
"mobileToken": state.user.token,
"id": loc.id.hexString,
"lat": loc.lat,
"lon": loc.lon,
"distance": loc.distance
final Map<String, Object> params = <String, Object>{
'token': state.firesApiKey,
'mobileToken': state.user.token,
'id': loc.id.hexString,
'lat': loc.lat,
'lon': loc.lon,
'distance': loc.distance
};
final String url = '${state.firesApiUrl}mobile/subscriptions';
try {
final response = await _dio.post(url, data: params);
final Response<dynamic> response = await _dio.post(url, data: params);
if (response.statusCode == 200) {
return response.data['data']['subsId'] as String;
} else {
print(response.data);
throw "Unexpected error on subscribe";
throw 'Unexpected error on subscribe';
}
} catch (e) {
throw "Error subscribing: $e";
throw 'Error subscribing: $e';
}
}
Future<bool> unsubscribe(AppState state, String subsId) async {
final apiKey = state.firesApiKey;
final mobileToken = state.user.token;
final String apiKey = state.firesApiKey;
final String mobileToken = state.user.token;
final String url =
'${state.firesApiUrl}mobile/subscriptions/$apiKey/$mobileToken/$subsId';
try {
final response = await _dio.delete(url);
final Response<dynamic> response = await _dio.delete(url);
if (response.statusCode == 200) {
return true;
} else {
throw "Unexpected error on unsubscribe";
throw 'Unexpected error on unsubscribe';
}
} catch (e) {
throw "Error unsubscribing: $e";
throw 'Error unsubscribing: $e';
}
}
@ -116,22 +116,22 @@ class FiresApi {
required double lat,
required double lon,
required int distance}) async {
var url =
final String url =
'${state.firesApiUrl}fires-in-full/${state.firesApiKey}/$lat/$lon/$distance';
if (globals.isDevelopment) print(url);
try {
final response = await _dio.get(url);
final Response<dynamic> response = await _dio.get(url);
if (response.statusCode == 200) {
var resultDecoded = response.data;
int numFires = (resultDecoded['real'] as num).toInt();
List<dynamic> fires = resultDecoded['fires'] as List<dynamic>;
List<dynamic> falsePos = resultDecoded['falsePos'] as List<dynamic>;
List<dynamic> industries = resultDecoded['industries'] as List<dynamic>;
final resultDecoded = response.data;
final int numFires = (resultDecoded['real'] as num).toInt();
final List<dynamic> fires = resultDecoded['fires'] as List<dynamic>;
final List<dynamic> falsePos = resultDecoded['falsePos'] as List<dynamic>;
final List<dynamic> industries = resultDecoded['industries'] as List<dynamic>;
if (globals.isDevelopment) {
var firesCount = fires.length;
var industriesCount = industries.length;
var falsePosCount = falsePos.length;
final int firesCount = fires.length;
final int industriesCount = industries.length;
final int falsePosCount = falsePos.length;
print(
'(Pos: $lat, $lon) real: $numFires, fire: $firesCount falsePos: $falsePosCount industries: $industriesCount');
}
@ -148,25 +148,25 @@ class FiresApi {
}
Future<List<Polyline>> getMonitoredAreas({required AppState state}) async {
var url =
final String url =
'${state.firesApiUrl}status/subs-public-union/${state.firesApiKey}';
var color = const Color(0xFF145A32);
const Color color = Color(0xFF145A32);
try {
final response = await _dio.get(url);
final Response<dynamic> response = await _dio.get(url);
if (response.statusCode == 200) {
var resultDecoded = response.data;
List<Polyline> union = [];
final multipolygon =
final resultDecoded = response.data;
final List<Polyline> union = <Polyline>[];
final List<dynamic> multipolygon =
(json.decode(resultDecoded['data']['union']['value'] as String)
as Map<String, dynamic>)['geometry']['coordinates']
as List<dynamic>;
for (dynamic polygonDynamic in multipolygon) {
var polygon = polygonDynamic as List<dynamic>;
for (dynamic holeDynamic in polygon) {
var hole = holeDynamic as List<dynamic>;
List<LatLng> points = [];
for (dynamic pointDynamic in hole) {
var point = pointDynamic as List<dynamic>;
for (final dynamic polygonDynamic in multipolygon) {
final List<dynamic> polygon = polygonDynamic as List<dynamic>;
for (final dynamic holeDynamic in polygon) {
final List<dynamic> hole = holeDynamic as List<dynamic>;
final List<LatLng> points = <LatLng>[];
for (final dynamic pointDynamic in hole) {
final List<dynamic> point = pointDynamic as List<dynamic>;
points.add(LatLng(
(point[1] as num).toDouble(), (point[0] as num).toDouble()));
}
@ -183,15 +183,15 @@ class FiresApi {
Future<bool> markFalsePositive(AppState state, String mobileToken,
String sealed, FalsePositiveType type) async {
final params = {
"token": state.firesApiKey,
"mobileToken": mobileToken,
"sealed": sealed,
"type": type.toString().split('.')[1]
final Map<String, String> params = <String, String>{
'token': state.firesApiKey,
'mobileToken': mobileToken,
'sealed': sealed,
'type': type.toString().split('.')[1]
};
final String url = '${state.firesApiUrl}mobile/falsepositive';
try {
final response = await _dio.post(url, data: params);
final Response<dynamic> response = await _dio.post(url, data: params);
if (response.statusCode == 200) {
if (globals.isDevelopment) print(response.data['data']['upsert']);
return true;
@ -200,7 +200,7 @@ class FiresApi {
return false;
}
} catch (e) {
debugPrint("Error marking false positive: $e");
debugPrint('Error marking false positive: $e');
return false;
}
}

View file

@ -1,21 +1,21 @@
import 'package:meta/meta.dart';
import 'package:comunes_flutter/comunes_flutter.dart';
import 'package:meta/meta.dart';
@immutable
class User {
final String userId;
final String lang;
final String token;
const User({required this.userId, required this.lang, required this.token});
const User.initial()
: userId = '',
lang = '',
token = '';
const User({required this.userId, required this.lang, required this.token});
final String userId;
final String lang;
final String token;
User copyWith({String? userId, String? lang, String? token}) {
return new User(
return User(
userId: userId ?? this.userId,
token: token ?? this.token,
lang: lang ?? this.lang);

View file

@ -1,30 +1,12 @@
import 'package:fires_flutter/objectIdUtils.dart';
import 'package:json_annotation/json_annotation.dart';
import 'package:objectid/objectid.dart';
import '../objectIdUtils.dart';
part 'yourLocation.g.dart';
@JsonSerializable(nullable: false)
class YourLocation {
@JsonKey(toJson: objectIdToJson, fromJson: objectIdFromJson)
ObjectId id;
final double lat;
final double lon;
String description;
bool subscribed;
int distance;
late int currentNumFires;
factory YourLocation.fromJson(Map<String, dynamic> json) =>
_$YourLocationFromJson(json);
static late final YourLocation noLocation;
static const int? withoutStats = null;
static void _initNoLocation() {
noLocation = new YourLocation(
id: ObjectId(), lat: 0.0, lon: 0.0, description: '', subscribed: false);
}
YourLocation(
{required this.id,
@ -36,6 +18,25 @@ class YourLocation {
this.subscribed = false}) {
this.currentNumFires = currentNumFires ?? 0;
}
factory YourLocation.fromJson(Map<String, dynamic> json) =>
_$YourLocationFromJson(json);
@JsonKey(toJson: objectIdToJson, fromJson: objectIdFromJson)
ObjectId id;
final double lat;
final double lon;
String description;
bool subscribed;
int distance;
late int currentNumFires;
static late final YourLocation noLocation;
static const int? withoutStats = null;
static void _initNoLocation() {
noLocation = YourLocation(
id: ObjectId(), lat: 0.0, lon: 0.0);
}
Map<String, dynamic> toJson() => _$YourLocationToJson(this);
YourLocation copyWith(
@ -46,7 +47,7 @@ class YourLocation {
int? distance,
int? currentNumFires,
bool? subscribed}) {
return new YourLocation(
return YourLocation(
id: id ?? this.id,
lat: lat ?? this.lat,
lon: lon ?? this.lon,

View file

@ -2,30 +2,31 @@ import 'dart:async';
import 'dart:convert';
import 'package:comunes_flutter/comunes_flutter.dart';
import 'package:fires_flutter/models/yourLocation.dart';
import 'package:shared_preferences/src/shared_preferences_legacy.dart';
import '../globals.dart' as globals;
import 'yourLocation.dart';
final String locationKey = 'yourlocations';
const String locationKey = 'yourlocations';
Future<List<YourLocation>> loadYourLocations() async {
return await globals.prefs.then((prefs) {
List<String>? yourLocations = prefs.getStringList(locationKey);
List<YourLocation> persistedList = [];
(yourLocations ?? []).forEach((locationString) {
Map<String, dynamic> locationMap =
return globals.prefs.then((SharedPreferences prefs) {
final List<String>? yourLocations = prefs.getStringList(locationKey);
final List<YourLocation> persistedList = <YourLocation>[];
for (final String locationString in (yourLocations ?? <String>[])) {
final Map<String, dynamic> locationMap =
json.decode(locationString) as Map<String, dynamic>;
persistedList.add(YourLocation.fromJson(locationMap));
});
}
return persistedList;
});
}
persistYourLocations(List<YourLocation> yl) {
void persistYourLocations(List<YourLocation> yl) {
// debugPrint('Persisting $yl');
globals.prefs.then((prefs) {
List<String> ylAsString = [];
yl.where(notNull).toList().forEach((location) {
globals.prefs.then((SharedPreferences prefs) {
final List<String> ylAsString = <String>[];
yl.where(notNull).toList().forEach((YourLocation location) {
ylAsString.add(json.encode(location.toJson()));
});
prefs.setStringList(locationKey, ylAsString);