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lib/app/core/custom_base_view_model.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:stacked/stacked.dart';
+import 'package:stacked_services/stacked_services.dart';
+
+import '../../services/global_var.dart';
+import '../../services/http_services.dart';
+import '../../services/my_easyloading.dart';
+import '../app.locator.dart';
+import '../themes/app_colors.dart';
+
+class CustomBaseViewModel extends BaseViewModel {
+  final dialogService = locator<DialogService>();
+  final navigationService = locator<NavigationService>();
+  final bottomSheetService = locator<BottomSheetService>();
+  final snackbarService = locator<SnackbarService>();
+  final easyLoading = locator<MyEasyLoading>();
+  final httpService = locator<MyHttpServices>();
+  final globalVar = locator<GlobalVar>();
+
+  // late bool backPressed;
+
+  void back() {
+    navigationService.back();
+  }
+
+  quitApp(BuildContext context) {
+    globalVar.backPressed = 'cantBack';
+    showDialog(
+      context: context,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          title: const Text('Keluar'),
+          content: const Text('Apakah Anda yakin ingin keluar?'),
+          actions: [
+            TextButton(
+              onPressed: () {
+                globalVar.backPressed = 'exitApp';
+                Navigator.of(context).pop(false);
+              },
+              child: const Text('Batal'),
+            ),
+            TextButton(
+              onPressed: () => Navigator.of(context).pop(true),
+              child: const Text(
+                'Keluar',
+                style: TextStyle(color: dangerColor),
+              ),
+            ),
+          ],
+        );
+      },
+    ).then((value) {
+      if (value == true) {
+        SystemNavigator.pop();
+      }
+    });
+  }
+}