Fix Home Preferences Decoding

Author: jakobkoerber

lib/base/enums/home_widget.dart

@@ -13,10 +13,15 @@ class HomeScreenWidget {
     return "${WidgetType.values.indexOf(widgetType)};${enabled.toString()}";
   }
 
-  factory HomeScreenWidget.fromString(String data) {
+  static HomeScreenWidget? fromString(String data) {
     final dataPoints = data.split(";");
-    final widgetType = WidgetType.values[int.parse(dataPoints[0])];
-    final enabled = dataPoints[1] == "true" ? true : false;
-    return HomeScreenWidget(widgetType: widgetType, enabled: enabled);
+    final index = int.parse(dataPoints[0]);
+    if (index < WidgetType.values.length) {
+      final widgetType = WidgetType.values[int.parse(dataPoints[0])];
+      final enabled = dataPoints[1] == "true" ? true : false;
+      return HomeScreenWidget(widgetType: widgetType, enabled: enabled);
+    } else {
+      return null;
+    }
   }
 }

lib/homeComponent/viewmodel/home_viewmodel.dart

@@ -24,7 +24,10 @@ class HomeViewModel {
             .load(UserPreference.homeWidgets) as List<String>? ??
         <String>[];
     List<HomeScreenWidget> widgets = defaultWidgets;
-    final types = data.map((e) => HomeScreenWidget.fromString(e)).toList();
+    final types = data
+        .map((e) => HomeScreenWidget.fromString(e))
+        .whereType<HomeScreenWidget>()
+        .toList();
     if (types.isNotEmpty) {
       widgets = types;
     }