41 lines
1020 B
Dart
41 lines
1020 B
Dart
import 'package:anyway/structs/trip.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:flutter/foundation.dart';
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class SavedTrips extends ChangeNotifier {
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List<Trip> _trips = [];
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List<Trip> get trips => _trips;
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Future<List<Trip>> loadTrips() async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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List<Trip> trips = [];
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Set<String> keys = prefs.getKeys();
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for (String key in keys) {
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if (key.startsWith('trip_')) {
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String uuid = key.replaceFirst('trip_', '');
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trips.add(Trip.fromPrefs(prefs, uuid));
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}
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}
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_trips = trips;
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notifyListeners();
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return trips;
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}
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void addTrip(Trip trip) async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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trip.toPrefs(prefs);
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_trips.add(trip);
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notifyListeners();
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}
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void clearTrips () async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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prefs.clear();
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_trips = [];
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notifyListeners();
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}
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}
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