Cleanup

lib/tools/mqtt_core.dart

@@ -450,7 +450,7 @@ class MqttCore {
       var message = bootstrapResponsePayload.message;
 
       if (status > 0) {
-        showAlertDialog(MyApp.appNavigatorKey.currentContext!, status == 1 ? "Information" : "Fehler", message);
+        showAlertDialog(status == 1 ? "Information" : "Fehler", message);
       }
 
       if (status < 2) {

lib/tools/util.dart

@@ -395,9 +395,9 @@ Future<void> showQuestionDialog(BuildContext context, String title, String messa
   );
 }
 
-Future<void> showAlertDialog(BuildContext context, String title, String message) async {
+Future<void> showAlertDialog(String title, String message) async {
   await showDialog(
-      context: context,
+      context: MyApp.appNavigatorKey.currentContext!,
       builder: (context) {
         return AlertDialog(
           title: Text(title),
@@ -441,7 +441,7 @@ class DecimalTextInputFormatter extends TextInputFormatter {
     if (text != "") {
       RegExp regExp;
       if (decimalPlaces > 0) {
-        regExp = RegExp(r'[0-9]+[,]{0,1}[0-9]{0,' + decimalPlaces.toString() + '}');
+        regExp = RegExp(r'[0-9]+[,]{0,1}[0-9]{0,${' + decimalPlaces.toString() + '}');
       } else {
         regExp = RegExp(r'[0-9]{0,' + maxLength.toString() +'}');
       }
@@ -460,12 +460,12 @@ Future<bool> taskDialogSecurityException(BuildContext context) async {
   bool close = false;
 
   await showQuestionDialog(context, "Achtung", "Wenn Sie den Dialog jetzt schließen gehen erfasste Daten verloren und die Aufgabe oder Station bleibt unerledigt.", [
-    TextButton(onPressed: () => {Navigator.of(context).pop(), close = true}, child: const Text('Schließen')),
-    TextButton(onPressed: () => {Navigator.of(context).pop(), close = false}, child: const Text('Zurück')),
+    TextButton(onPressed: () => {Navigator.of(MyApp.appNavigatorKey.currentContext!).pop(), close = true}, child: const Text('Schließen')),
+    TextButton(onPressed: () => {Navigator.of(MyApp.appNavigatorKey.currentContext!).pop(), close = false}, child: const Text('Zurück')),
   ]);
 
   if (close) {
-    Navigator.of(context).pop();
+    Navigator.of(MyApp.appNavigatorKey.currentContext!).pop();
   }
 
   return close;