您可以做这样的事情:
DropdownMenuItem(value: x, child: Container(child: Text(""), color: Colors.red,));
希望有帮助!
您可以使用带有全角的空容器并赋予背景颜色;
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart' as image_picker;
import 'package:provider/provider.dart';
import 'package:simple_flutter_i18n/simple_flutter_i18n.dart';
// import '../i18n/i18n.dart';
class DropDown extends StatelessWidget {
@override
Widget build(BuildContext context) {
final language = Provider.of<I18n>(context).lang;
return Container(
child: DropdownButton(
onChanged: (d) {},
items: [
DropdownMenuItem(
child: Container(
width: 100,
height: 10,
color: Colors.red,
),
),
DropdownMenuItem(
child: Container(
width: 100,
height: 10,
color: Colors.blue,
),
)
],
),
);
}
}