Erweiterungen

lib/tools/util.dart

@@ -117,7 +117,7 @@ class Util {
       FocusNode? focusNode,
       IconButton? iconButton,
       int? maxLines = 1,
-      TextInputType? type,
+      TextInputType? textInputType,
       List<TextInputFormatter>? formatter,
       Function()? onTap,
       bool? autofocus}) {
@@ -135,7 +135,7 @@ class Util {
       focusNode: focusNode,
       maxLines: maxLines,
       onTap: onTap,
-      keyboardType: type,
+      keyboardType: textInputType,
       inputFormatters: formatter,
       autofocus: (autofocus != null) ? autofocus : false,
       decoration: InputDecoration(
@@ -337,4 +337,30 @@ Future<void> showAlertDialog(BuildContext context, String title, String message)
         );
       }
   );
-}
+}
+
+class DecimalTextInputFormatter extends TextInputFormatter {
+  int maxLength;
+  
+  int decimalPlaces;
+
+  DecimalTextInputFormatter({required this.maxLength, required this.decimalPlaces});
+
+  @override
+  TextEditingValue formatEditUpdate(TextEditingValue oldValue, TextEditingValue newValue) {
+    var text = newValue.text;
+    String? filteredText = "";
+
+    if (text != "") {
+      RegExp regExp;
+      if (decimalPlaces > 0) {
+        regExp = RegExp(r'[0-9]+[,]{0,1}[0-9]{0,' + decimalPlaces.toString() + '}');
+      } else {
+        regExp = RegExp(r'[0-9]{0,' + maxLength.toString() +'}');
+      }
+      filteredText = regExp.stringMatch(text);
+    }
+
+    return TextEditingValue(text: filteredText ?? oldValue.text);
+  }
+}