Here i create a DropdownItemMenu which get the element from firebase collection, but it shows me an error The method 'showSnackBar' isn't defined for the type 'BuildContext' Container( margin: E...

I am getting this error in the console when I am trying to use flutter DropdownButton Widget. package:flutter/src/material/dropdown.dart': Failed assertion: line 1252 pos 12: 'widget.items!.where(...

When a PopupMenuButton is pressed, the currently selected value is highlighted, but when a DropdownButton is pressed, the currently selected value is not highlighted. Is there a way to highligh...

I tried selecting a DropdownButton item like this: import 'package:flutter/material.dart'; import 'package:flutter_test/flutter_test.dart'; import 'package:dropdown_test_sample/main.dart'; voi...