feat: addin pop up confirmation for back

lib/component/notification/pop_up_confirmation.dart

@@ -0,0 +1,84 @@
+import 'package:flutter/material.dart';
+import 'package:quiz_app/app/const/colors/app_colors.dart';
+
+class AppDialog {
+  static Future<void> showExitConfirmationDialog(BuildContext context) async {
+    await showDialog(
+      context: context,
+      barrierDismissible: true,
+      builder: (BuildContext context) {
+        return Dialog(
+          backgroundColor: AppColors.background,
+          shape: RoundedRectangleBorder(
+            borderRadius: BorderRadius.circular(16),
+          ),
+          child: Padding(
+            padding: const EdgeInsets.all(20),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              crossAxisAlignment: CrossAxisAlignment.center,
+              children: [
+                const Text(
+                  "Keluar tanpa menyimpan?",
+                  style: TextStyle(
+                    fontSize: 18,
+                    fontWeight: FontWeight.bold,
+                    color: AppColors.darkText,
+                  ),
+                  textAlign: TextAlign.center,
+                ),
+                const SizedBox(height: 16),
+                const Text(
+                  "Perubahan yang belum disimpan akan hilang. Anda yakin ingin keluar?",
+                  style: TextStyle(
+                    fontSize: 14,
+                    color: AppColors.softGrayText,
+                  ),
+                  textAlign: TextAlign.center,
+                ),
+                const SizedBox(height: 24),
+                Row(
+                  children: [
+                    Expanded(
+                      child: ElevatedButton(
+                        onPressed: () => Navigator.pop(context),
+                        style: ElevatedButton.styleFrom(
+                          backgroundColor: Colors.white,
+                          foregroundColor: AppColors.primaryBlue,
+                          side: const BorderSide(color: AppColors.primaryBlue),
+                          shape: RoundedRectangleBorder(
+                            borderRadius: BorderRadius.circular(12),
+                          ),
+                          padding: const EdgeInsets.symmetric(vertical: 14),
+                        ),
+                        child: const Text("Batal"),
+                      ),
+                    ),
+                    const SizedBox(width: 12),
+                    Expanded(
+                      child: ElevatedButton(
+                        onPressed: () {
+                          Navigator.pop(context); // Tutup dialog
+                          Navigator.pop(context); // Kembali halaman
+                        },
+                        style: ElevatedButton.styleFrom(
+                          backgroundColor: AppColors.primaryBlue,
+                          foregroundColor: Colors.white,
+                          shape: RoundedRectangleBorder(
+                            borderRadius: BorderRadius.circular(12),
+                          ),
+                          padding: const EdgeInsets.symmetric(vertical: 14),
+                        ),
+                        child: const Text("Keluar"),
+                      ),
+                    ),
+                  ],
+                )
+              ],
+            ),
+          ),
+        );
+      },
+    );
+  }
+}

lib/feature/quiz_creation/controller/quiz_creation_controller.dart

@@ -1,7 +1,9 @@
+import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:get/get.dart';
 import 'package:quiz_app/app/const/enums/question_type.dart';
 import 'package:quiz_app/app/routes/app_pages.dart';
+import 'package:quiz_app/component/notification/pop_up_confirmation.dart';
 import 'package:quiz_app/data/models/quiz/quiestion_data_model.dart';
 
 class QuizCreationController extends GetxController {
@@ -132,4 +134,12 @@ class QuizCreationController extends GetxController {
   void onDone() {
     Get.toNamed(AppRoutes.quizPreviewPage, arguments: quizData);
   }
+
+  void onBack(BuildContext context) {
+    if (quizData.length <= 1) {
+      Navigator.pop(context);
+    } else {
+      AppDialog.showExitConfirmationDialog(context);
+    }
+  }
 }

lib/feature/quiz_creation/view/quiz_creation_view.dart

@@ -25,7 +25,7 @@ class QuizCreationView extends GetView<QuizCreationController> {
         ),
         leading: IconButton(
           icon: const Icon(Icons.arrow_back_ios_new_rounded, color: AppColors.darkText),
-          onPressed: () => Navigator.pop(context),
+          onPressed: () => controller.onBack(context),
         ),
         centerTitle: true,
       ),