finished migration

lib/src/page/home_page.dart

@@ -4,6 +4,8 @@ import 'package:reboot_launcher/src/page/launcher_page.dart';
 import 'package:reboot_launcher/src/page/server_page.dart';
 import 'package:reboot_launcher/src/widget/window_buttons.dart';
 
+import '../util/reboot.dart';
+
 class HomePage extends StatefulWidget {
   const HomePage({Key? key}) : super(key: key);
 
@@ -13,8 +15,15 @@ class HomePage extends StatefulWidget {
 
 class _HomePageState extends State<HomePage> {
   final List<Widget> _children = [LauncherPage(), ServerPage(), const InfoPage()];
+  late final Future _future;
   int _index = 0;
 
+  @override
+  void initState() {
+    _future = downloadRebootDll();
+    super.initState();
+  }
+
   @override
   Widget build(BuildContext context) {
     return NavigationView(
@@ -29,9 +38,25 @@ class _HomePageState extends State<HomePage> {
               _createPane("Info", FluentIcons.info),
             ],
             trailing: const WindowTitleBar()),
-        content: NavigationBody(
-            index: _index,
-            children: _children
+        content: FutureBuilder(
+          future: _future,
+          builder: (context, snapshot) {
+            if (snapshot.hasError) {
+              return Center(
+                  child: Text(
+                      "An error occurred while loading the launcher: ${snapshot.error}",
+                      textAlign: TextAlign.center));
+            }
+
+            if (!snapshot.hasData) {
+              return const Center(child: ProgressRing());
+            }
+
+            return NavigationBody(
+                index: _index,
+                children: _children
+            );
+          }
         )
     );
   }

lib/src/util/reboot.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 
 import 'package:archive/archive_io.dart';
+import 'package:get_storage/get_storage.dart';
 import 'package:reboot_launcher/src/util/binary.dart';
 import 'package:http/http.dart' as http;
 import 'package:crypto/crypto.dart';
@@ -8,16 +9,17 @@ import 'package:shared_preferences/shared_preferences.dart';
 
 const _rebootUrl =
     "https://nightly.link/UWUFN/Universal-Walking-Simulator/workflows/msbuild/master/Release.zip";
+final GetStorage _storage = GetStorage("update");
 
-Future<DateTime?> _getLastUpdate(SharedPreferences preferences) async {
-  var timeInMillis = preferences.getInt("last_update");
+Future<DateTime?> _getLastUpdate() async {
+  int? timeInMillis = _storage.read("last_update");
   return timeInMillis != null ? DateTime.fromMillisecondsSinceEpoch(timeInMillis) : null;
 }
 
-Future<File> downloadRebootDll(SharedPreferences preferences) async {
+Future<File> downloadRebootDll() async {
   var now = DateTime.now();
   var oldRebootDll = await loadBinary("reboot.dll", true);
-  var lastUpdate = await _getLastUpdate(preferences);
+  var lastUpdate = await _getLastUpdate();
   var exists = await oldRebootDll.exists();
   if(lastUpdate != null && now.difference(lastUpdate).inHours <= 24 && exists){
     return oldRebootDll;
@@ -34,7 +36,7 @@ Future<File> downloadRebootDll(SharedPreferences preferences) async {
     throw Exception("Missing reboot dll");
   }
 
-  preferences.setInt("last_update", now.millisecondsSinceEpoch);
+  _storage.write("last_update", now.millisecondsSinceEpoch);
   if (exists && sha1.convert(await oldRebootDll.readAsBytes()) == sha1.convert(await rebootDll.readAsBytes())) {
     rebootDll.delete();
     return oldRebootDll;