loading from shared preferences not yet working

sw/lib/configuration.dart

@@ -186,6 +186,9 @@ class _MyHomePageState extends State<Configuration> {
 
 
       }else{
+
+        await configuration.storeToSharedPrefs();
+
         // collection has not been changed but store the other parameters
         statusPopUpMessageText = 'Stored changed configuration.';
         popUpError = false;
@@ -198,12 +201,6 @@ class _MyHomePageState extends State<Configuration> {
       statusPopUpMessageText = errorText.substring(10, errorText.length);  //Remove 'Exception' from string.
       popUpError = true;
 
-      //_showResultPopup(context,
-       //   errorText,
-       //   true
-      //);
-
-      //setState(() {});
     }
     setState(() {_showResultPopup(context, statusPopUpMessageText, popUpError);});
   }
@@ -355,7 +352,7 @@ class _MyHomePageState extends State<Configuration> {
 
                 const SizedBox(height: 15.0),
                 TextFormField(
-                  keyboardType: TextInputType.text,
+                  keyboardType: TextInputType.url,
                   autofocus: false,
                   initialValue: configuration.restRequestUrl,
                   decoration: const InputDecoration(

sw/lib/datamodel.dart

@@ -340,7 +340,14 @@ abstract class ConfigurationStoreBase {
       eventTypes.add(EventType.fromJson(element));
     }
 
+
+    //TODO: fix this here! What is the problem. 
+    print(map['labelConfiguration']);
     labelConfig = LabelConfiguration.fromJson(map['labelConfiguration']);
+    print(map['labelConfiguration']);
+
+
+    print(map['restRequestUrl']);
     restRequestUrl = map['restRequestUrl'];
 
     initialized = map['initialized'];
@@ -405,8 +412,9 @@ class ConfigurationStoreInstance extends ConfigurationStoreBase {
     final prefs = await SharedPreferences.getInstance();
     prefs.setString('configuration', jsonEncode(toMap()));
 
-
     debugPrint('Stored current configuration to shared prefs');
+    debugPrint('${toMap()['labelConfiguration']}');
+    debugPrint('${toMap()['restRequestUrl']}');
   }
 
   Future<void> loadFromSharedPrefs() async {
@@ -423,7 +431,7 @@ class ConfigurationStoreInstance extends ConfigurationStoreBase {
     final prefs = await SharedPreferences.getInstance();
     final String? configuration = prefs.getString('configuration');
     if (configuration != null){
-      debugPrint('Configuration String: ' + configuration);
+      debugPrint('Configuration String: $configuration');
       fromMap(jsonDecode(configuration));
       debugPrint('Configuration loaded from shared preferences');
     }else{

sw/lib/sensorconnector.dart

@@ -56,7 +56,7 @@ class SensorConnector {
     List<Collection> collectionList = [];
 
     try{
-      final response = await http.get(Uri.parse(url)).timeout(Duration(seconds: 3));  //TODO: check if this timeout works
+      final response = await http.get(Uri.parse(url)).timeout(const Duration(seconds: 3));  //TODO: check if this timeout works
       if (response.statusCode == 200) {
         collectionList = (json.decode(response.body) as List)
             .map((i) => Collection.fromJson(i))