8-20/1

lib/controller/functions/digit_obsecur_formate.dart

@@ -0,0 +1,42 @@
+import 'package:flutter/services.dart';
+
+class DigitObscuringFormatter extends TextInputFormatter {
+  @override
+  TextEditingValue formatEditUpdate(
+      TextEditingValue oldValue, TextEditingValue newValue) {
+    final maskedText = maskDigits(newValue.text);
+    return newValue.copyWith(
+        text: maskedText,
+        selection: updateCursorPosition(maskedText, newValue.selection));
+  }
+
+  String maskDigits(String text) {
+    final totalDigits = text.length;
+    final visibleDigits = 4;
+    final hiddenDigits = totalDigits - visibleDigits * 2;
+
+    final firstVisibleDigits = text.substring(0, visibleDigits);
+    final lastVisibleDigits = text.substring(totalDigits - visibleDigits);
+
+    final maskedDigits = List.filled(hiddenDigits, '*').join();
+
+    return '$firstVisibleDigits$maskedDigits$lastVisibleDigits';
+  }
+
+  TextSelection updateCursorPosition(
+      String maskedText, TextSelection currentSelection) {
+    final cursorPosition = currentSelection.baseOffset;
+    final cursorOffset =
+        currentSelection.extentOffset - currentSelection.baseOffset;
+    final totalDigits = maskedText.length;
+    const visibleDigits = 4;
+    final hiddenDigits = totalDigits - visibleDigits * 2;
+
+    final updatedPosition = cursorPosition <= visibleDigits
+        ? cursorPosition
+        : hiddenDigits + visibleDigits + (cursorPosition - visibleDigits);
+
+    return TextSelection.collapsed(
+        offset: updatedPosition, affinity: currentSelection.affinity);
+  }
+}

lib/controller/functions/scan_id_card.dart

@@ -0,0 +1,25 @@
+import 'package:credit_card_scanner/credit_card_scanner.dart';
+import 'package:get/get.dart';
+
+class ScanIdCard extends GetxController {
+  CardDetails? _cardDetails;
+  CardScanOptions scanOptions = const CardScanOptions(
+    scanCardHolderName: true,
+// enableDebugLogs: true,
+    validCardsToScanBeforeFinishingScan: 5,
+    possibleCardHolderNamePositions: [
+      CardHolderNameScanPosition.aboveCardNumber,
+    ],
+  );
+
+  Future<void> scanCard() async {
+    final CardDetails? cardDetails =
+        await CardScanner.scanCard(scanOptions: scanOptions);
+    if (cardDetails == null) {
+      return;
+    }
+
+    _cardDetails = cardDetails;
+    update();
+  }
+}

lib/controller/functions/secure_storage.dart

@@ -0,0 +1,14 @@
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+class SecureStorage {
+  final FlutterSecureStorage _storage = const FlutterSecureStorage();
+
+  void saveData(String key, value) async {
+    await _storage.write(key: key, value: value);
+  }
+
+  Future<String?> readData(String boxName) async {
+    final String? value = await _storage.read(key: boxName);
+    return value;
+  }
+}