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Preference migrate and init

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This commit is contained in:
Anton Tananaev 2025-05-05 22:43:43 -07:00
parent 5b14d58b1f
commit 59586cdadd
2 changed files with 72 additions and 1 deletions
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5
lib/main.dart
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@ -2,8 +2,11 @@ import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart'; import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'main_screen.dart'; import 'main_screen.dart';
import 'preferences.dart';
void main() { void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Preferences.init();
runApp(const MainApp()); runApp(const MainApp());
} }

68
lib/preferences.dart Normal file
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@ -0,0 +1,68 @@
import 'dart:io';
import 'dart:math';
import 'package:shared_preferences/shared_preferences.dart';
class Preferences {
static const String id = 'id';
static const String url = 'url';
static const String accuracy = 'accuracy';
static const String interval = 'interval';
static const String distance = 'distance';
static const String buffer = 'buffer';
static Future<void> init() async {
SharedPreferences preferences = await SharedPreferences.getInstance();
if (Platform.isIOS) {
await _migrate(preferences);
}
await preferences.setString(id, preferences.getString(id) ?? (Random().nextInt(900000) + 100000).toString());
await preferences.setString(url, preferences.getString(url) ?? 'http://demo.traccar.org:5055');
await preferences.setString(accuracy, preferences.getString(accuracy) ?? 'medium');
await preferences.setInt(interval, preferences.getInt(interval) ?? 300);
await preferences.setInt(distance, preferences.getInt(distance) ?? 0);
await preferences.setBool(buffer, preferences.getBool(buffer) ?? true);
}
static Future<void> _migrate(SharedPreferences preferences) async {
final oldId = preferences.getString('device_id_preference');
if (oldId != null) {
preferences.setString(id, oldId);
preferences.remove('device_id_preference');
}
final oldUrl = preferences.getString('server_url_preference');
if (oldUrl != null) {
preferences.setString(url, oldUrl);
preferences.remove('server_url_preference');
}
final oldAccuracy = preferences.getString('accuracy_preference');
if (oldAccuracy != null) {
preferences.setString(accuracy, oldAccuracy);
preferences.remove('accuracy_preference');
}
final oldIntervalString = preferences.getString('frequency_preference');
final oldInterval = oldIntervalString != null ? int.tryParse(oldIntervalString) : null;
if (oldInterval != null) {
preferences.setInt(interval, oldInterval);
preferences.remove('frequency_preference');
}
final oldDistanceString = preferences.getString('distance_preference');
final oldDistance = oldDistanceString != null ? int.tryParse(oldDistanceString) : null;
if (oldDistance != null) {
preferences.setInt(distance, oldDistance);
preferences.remove('distance_preference');
}
final oldAngleString = preferences.getString('angle_preference');
final oldAngle = oldAngleString != null ? int.tryParse(oldAngleString) : null;
if (oldAngle != null) {
preferences.setInt('angle', oldAngle);
preferences.remove('angle_preference');
}
final oldBuffer = preferences.getBool('buffer_preference');
if (oldBuffer != null) {
preferences.setBool(buffer, oldBuffer);
preferences.remove('buffer_preference');
}
}
}