lib/core/utils/custom_floating_loading.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/material.dart';
+
+class CustomFloatingLoading {
+  static void showLoadingDialog(BuildContext context) {
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      barrierColor: Colors.black.withValues(alpha: 0.3),
+      builder: (BuildContext context) {
+        return PopScope(
+          canPop: false,
+          child: const Center(
+            child: CircularProgressIndicator(),
+          ),
+        );
+      },
+    );
+  }
+
+  static void hideLoadingDialog(BuildContext context) {
+    Navigator.of(context).pop();
+  }
+}

lib/feature/quiz_preview/controller/quiz_preview_controller.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.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/core/utils/custom_floating_loading.dart';
 import 'package:quiz_app/core/utils/custom_notification.dart';
 import 'package:quiz_app/core/utils/logger.dart';
 import 'package:quiz_app/data/controllers/user_controller.dart';
@@ -29,6 +30,8 @@ class QuizPreviewController extends GetxController {
 
   RxBool isPublic = false.obs;
 
+  RxBool isLoading = false.obs;
+
   late final List<QuestionData> data;
 
   RxList<SubjectModel> subjects = <SubjectModel>[].obs;
@@ -62,26 +65,31 @@ class QuizPreviewController extends GetxController {
   }
 
   Future<void> onSaveQuiz() async {
-    final title = titleController.text.trim();
-    final description = descriptionController.text.trim();
-
-    if (title.isEmpty || description.isEmpty) {
-      CustomNotification.error(
-        title: 'Error',
-        message: 'Judul dan deskripsi tidak boleh kosong!',
-      );
-      return;
-    }
-
-    if (data.length < 10) {
-      CustomNotification.error(
-        title: 'Error',
-        message: 'Jumlah soal harus 10 atau lebih',
-      );
-      return;
-    }
-
     try {
+      if (isLoading.value) return;
+
+      final title = titleController.text.trim();
+      final description = descriptionController.text.trim();
+
+      if (title.isEmpty || description.isEmpty) {
+        CustomNotification.error(
+          title: 'Error',
+          message: 'Judul dan deskripsi tidak boleh kosong!',
+        );
+        return;
+      }
+
+      if (data.length < 10) {
+        CustomNotification.error(
+          title: 'Error',
+          message: 'Jumlah soal harus 10 atau lebih',
+        );
+        return;
+      }
+
+      isLoading.value = true;
+      CustomFloatingLoading.showLoadingDialog(Get.context!);
+
       final now = DateTime.now();
       final String formattedDate = "${now.day.toString().padLeft(2, '0')}-${now.month.toString().padLeft(2, '0')}-${now.year}";
 
@@ -108,6 +116,9 @@ class QuizPreviewController extends GetxController {
       }
     } catch (e) {
       logC.e(e);
+    } finally {
+      isLoading.value = false;
+      CustomFloatingLoading.hideLoadingDialog(Get.context!);
     }
   }