Initial commit: Penyerahan final Source code Tugas Akhir

lib/screens/checkout/components/cardmonth.dart

@@ -0,0 +1,29 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+class CardMonthInputFormatter extends TextInputFormatter {
+  @override
+  TextEditingValue formatEditUpdate(
+      TextEditingValue oldValue, TextEditingValue newValue) {
+    var masaController = newValue.text;
+    if (newValue.selection.baseOffset == 0) {
+      return newValue;
+    }
+
+    var buffer = new StringBuffer();
+
+    for (int i = 0; i < masaController.length; i++) {
+      buffer.write(masaController[i]);
+      var nonZeroIndex = i + 1;
+
+      if (nonZeroIndex % 2 == 0 && nonZeroIndex != masaController.length) {
+        buffer.write('/');
+      }
+    }
+
+    var string = buffer.toString();
+    return newValue.copyWith(
+        text: string,
+        selection: new TextSelection.collapsed(offset: string.length));
+  }
+}