From 35f7029e12d42c2ed0a17733a7f6d3927a6609de Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Sun, 8 Feb 2026 09:06:50 -0800
Subject: [PATCH] Init preferences once

---
 lib/preferences.dart | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/preferences.dart b/lib/preferences.dart
index 3ec018d..105b355 100644
--- a/lib/preferences.dart
+++ b/lib/preferences.dart
@@ -7,6 +7,7 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'package:shared_preferences_android/shared_preferences_android.dart';
 
 class Preferences {
+  static Future<void>? _initFuture;
   static late SharedPreferencesWithCache instance;
 
   static const String id = 'id';
@@ -27,6 +28,11 @@ class Preferences {
   static const String lastHeading = 'lastHeading';
 
   static Future<void> init() async {
+    _initFuture ??= _createInstance();
+    await _initFuture;
+  }
+
+  static Future<void> _createInstance() async {
     instance = await SharedPreferencesWithCache.create(
       sharedPreferencesOptions: Platform.isAndroid
         ? SharedPreferencesAsyncAndroidOptions(backend: SharedPreferencesAndroidBackendLibrary.SharedPreferences)