New settings repository on each connection

Author: Kamoool

README.md

@@ -1,3 +1,18 @@
 # Quick - Down - Shifter APP
 
 QS DS Application
+
+
+#Corect settings
+
+Windows: 
+Change in windows/runner/Runner.rc: VALUE "FileDescription", "QS-DS-App" "\0"
+Logo: windows/runner/resources - .ico 3.0 format
+
+
+
+MacOS:
+Logo: macos/Runner/Assets.xcassets/AppIcon.appiconset
+Add in: /macos/Runner/DebugProfile.entitlements    /macos/Runner/Release.entitlements:
+<key>com.apple.security.device.serial</key>
+<true/>

lib/model/settings_repository.dart

@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 import '../model/setting.dart';
 
 class SettingsRepository {
-  static final SettingsRepository instance = SettingsRepository.internal();
+  static SettingsRepository? instance;
   late final List<Setting> settingsList;
   late final List<Setting> readingsList;
 
@@ -82,8 +82,11 @@ class SettingsRepository {
   final Setting postDelayQS = Setting(SettingType.PostDelayQS, '500');
   final Setting postDelayDS = Setting(SettingType.PostDelayDS, '500');
 
-  factory SettingsRepository() {
-    return instance;
+  factory SettingsRepository({bool? newSettings}) {
+    if (newSettings == true || instance == null) {
+      instance = SettingsRepository.internal();
+    }
+    return instance!;
   }
 
   SettingsRepository.internal() {

lib/screens/settings_screen.dart

@@ -21,7 +21,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
   @override
   void initState() {
     super.initState();
-    SettingsRepository();
+    SettingsRepository(newSettings: true);
     SerialPortUtils().setNotify(() => refresh());
   }