DropdownButton
DropdownButton( isExpanded: true, underline: SizedBox(), icon: SvgPicture.asset('assets/icons/dropdown.svg'), value: 'Indonesia', items: ['Indonesia', 'Bangladesh', 'United States'] .map<DropdownMenuItem<String>>((String value) { return DropdownMenuItem<String>( value: value, child: Text(value)); }).toList(), onChanged: (value) {}, ),