update

lib/widgets/cat_widget.dart

@@ -0,0 +1,49 @@
+import 'package:flutter/material.dart';
+import 'package:rogapp/pages/index/index_controller.dart';
+import 'package:rogapp/services/location_service.dart';
+
+class CatWidget extends StatefulWidget {
+  CatWidget({ Key? key, required this.indexController, }) : super(key: key);
+
+  IndexController indexController;
+
+  @override
+  State<CatWidget> createState() => _CatWidgetState();
+}
+
+class _CatWidgetState extends State<CatWidget> {
+  String defaultValue = "---";
+
+  @override
+  Widget build(BuildContext context) {
+    return 
+    PopupMenuButton(
+      onSelected: (value) {
+        widget.indexController.currentCat.clear();
+        widget.indexController.currentCat.add(value.toString());
+        widget.indexController.refreshLocationForCat();
+        setState(() {
+          print(value);
+          defaultValue = value.toString();
+        });
+      },
+        itemBuilder: (BuildContext context){
+          List<PopupMenuItem> itms = <PopupMenuItem>[];
+          for(dynamic d in widget.indexController.cats[0]){
+            PopupMenuItem itm = PopupMenuItem(child:  Text(d['category'].toString()), value: d['category'].toString());
+            itms.add(itm);
+          }
+          return itms;
+        }
+          
+      );
+  }
+}
+
+
+// widget.indexController.cats.map((e) => 
+//             PopupMenuItem(
+//               value: defaultValue,
+//              child: Text(e[0]['category'].toString()),
+//            )
+//           ).toList(),